and8407jp - ncp1631で駆動するインタリーブ型pfcステー …semiconductor components...
TRANSCRIPT
Semiconductor Components Industries, LLC, 2013
March, 2013 − Rev. 21 Publication Order Number:
AND8407JP/D
��������
��� ����������� ���������������
�������PFC������� ������������������PC�����LCD TV������ !��" #��$��%�&�'���(�����)��*+ ,-./%������������&���+��'0��&�'��&�1�2$134�%'56�)�78)���23&9���:��1�2���;<-./%���)��23&150 W PFC�1�2$�=>6?-�@&*&300 W PFC�AAB A��$��/%�@&��C�D)�������� + ,'E�.,�F&��G�!H"&#I���.JK&L$+��/%�/����������%&'M�N(CrM)&O()$*�%'�P+,���P-&�../(trr&�;.��Q�N+R )�% �;S) �NCP1631EVB/D[3]�0T;<-.'UV)�W1 �X��%&2YM�N(Frequency Clamped Criticalconduction Mode�FCCrM)E�=>6?'�>��@&./��3)�.P+AZ[(300 W&���(�
�����90 Vrms&4. 5())6�\-695%)$�7/%�;S)�23&�1�2+�]8�^_-.'�>��9���[��:);</%�)�`O9+�='M�N(CCM))a�1�$>�b[�"c�d�ef&rms9��:);</%�@<S&�&�?�����(����"���AND8355 [1])@�;<-./%�@&g�h����NCP1631��^%'�������PFC�1�2$��%'Ei)ABJj�C$Dk/%�@&�Cl�$�E&300 WF�jG���(�����H>/%�
I�mOO� 300 W
`OJ()� 90 Vrms ~ 265 Vrms
KLGmOJ� 390 V
OMN)�%'�O��2J&HP&��9+Qn)Ho;<'E.VpR)Sq.-./%�2J&c�[&��r����+Ts�D�t;<-.'�>��@&�U�VP�%[2]�
EMIF ilte r
Vin
LOAD
Vout
Cin
Vcc
pfcOK
Vout
1
Figure 1. Generic Application Schematic
The “pfcOK” signal enables the downstreamconverter when the PFC is ready
Rbo1
Rbo2
Iin
D2
M2
M1
D1Rovp1
OVPin
Rovp2
Cbo2
Rfb1
Rfb2
Vaux2
Rzcd2Rzcd1
OVPin
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
RocpRsense
L1
Rt
Cosc
RFF
Cz
Rz
Cp
L2
Icoil2
Icoil1
Vaux2
AC Line
Cbulk+
http://onsemi.com
APPLICATION NOTE
AND8407/D
http://onsemi.com2
����
NCP1631���������&2]8PFC���(�����&d �[MOSFET$�W�XF�%�23&HP$W1 �X��%&'M�N(FCCrM)��^�u]8�v 5YZ-.'wEx�&2Yy�%&'M�N(CrM)�^_�z<{[&�>�R�='M�N(DiscontinuousConduction Mode�DCM)�^_%'@E��W1 �X��(Y\])U'|^)_�$`JCrMc��C�XE-_�/%�2Y)a}-�^_&~b�91�&�G���PFC�1�2���)DCMKSCrM(/��z&�))cd/%��,-�e�)��fg�^_$�7%'��&��_�E�h 52Yy�PFC�1�2+i�%'O$�;%'��&je��fk;<-./%��l,)m,��NCP1631�c��P+��������b�n�i�O��U��O++�o;<'��1��&pq,�XFE��/%�
�� !FCCrM"#$%&'�(s����A��"c��C�XE�r���
NCP1631�8�_�)U']8��C�D$4�-���@&��C�D��2J&HP+sB-^_/%��+\-�2J&]8+��FCCrM�^_%'@E��t/�.d�N�����='M�N��(��)U'���$�u�i/%��,-�z<S&8+�]8�^_%'UV)�e��]8$8�_�;?/%�NCP1631sv&������./)U���^n��wn�/���x��(��$���S�'2Yy��2J&HP&��t/.180&]8� �$��,)y`�i/%�
�)*+,�-./01234
NCP1631��nX��/ 5()�PFC�1�2&P+$I G/%��X��W1 ���z 54�n&j�{�%�~ 5�U�! 5&�>���X��W1 �O&� E-|},)�y��3)!. 5&Ei���-��P+$y`/%�W1 +�y%'O�A���[N��r�6EtX�N&�)��%'~���L/%�h 5n)KLG+�6<'���$�u%'��)��X�"���+vS&��X��"AZ[)"�Ei)e��e��[&������d/%�
567��/89:;<=KLG[���&��:+�.E.V�+�S<'�>� 5/��X��&��&�^(*,���^n))U\-�PFC�1�2��i�Q�b� ��E���� ��$>/%�NCP1631��mOJ()$�:)��/��/��@&c��C�X����&�J�uAZ[$�L%'�,���1�&r�$o��-�mOJ+@&�A���[N$�e\-.'��O&��$�u/%�/��NCP1631&������a�����e��mOJ+t/.AZ[$4.5%ye\-.'�>��KLG[��$�:)�#G/%����PFC�1
�2)��J()+�3)�.y9c�b��+��/%�
“pfcOK”>?@e���PFC�1�2+KL��)�'K�VK$�m��)RKL��)�'�>���^nK��w2YyK$�m/%�p�&�>��“pfcOK”r�(r�15)+����)���z<{[&�>�C�)��/%�@&��)U��y9c�b���hP)��/%����b[�"c�d�e+�;<��w+�m;<-.�.�>$$i/%�I�)�PFC�1�2+T3^_-.'@E$pRE-��.J()$�7%'��)�y9c�b��$I ��%'@E��i/%�
�AB@
NCP1631����1�$�����A�KS���PFC�1�2&fg�E���$�:)��'��)�`OJEmOJ�`O9��U�D����$3n�o-./%�p%&OVP��)�,-�E&_����/%�
I�9|&�
>�`O9$3n�����l��;<�9|&$','@E$�u%'E�n)��]8^_$y`/%�
�`�me��
NCP1631��G���D&���Q�n)��^ ����YZ%'0��&�'�`�9��(��$�u/%�
�J���
@&_��j)�OVP�o ��¡���&�w(*,���=R�)+YZ��>&^_$�u/%�
�X¢��¢��me��
X��&\:+�;%£'�>��z&UV�2Yy��¤$¥,'0��+�'�¦���A�KSPFC�1�2$��%'��)�e��^_$�u/%�
e�s["�§���¢��
e�������>���+150C$','Eh[�YZ$�u;?���+100C (50C&¨�1���){y)y+'E�^_$©(/%�
AND8407/D
http://onsemi.com3
)*CD
PFC�1�2&|&$�L%'p)�NCP1631&Y\]&W1 $L�%'@E+�)&�*�%�*>����(�������u]8�6120 kHz&���D�tW1 �&�X��$+�/%�{y&M$� %'�>)�@&W1 ��l,)�¡��A�NQ )�'KS�%�
�.���D�tW1 )U���¢MN&e��$�;/%�)����D�tW1 +�.w�������c�&e��+�;�'@E+�S<-./%�@&p£�����D�tW1 $�i'�ª��L%'�+��/%�
�¤����D�tW1 $�%'@E)��2J&j�¥$+��/%�
1.���D�t"A��+��'E���%'��+�i��/%��,-�%«-&¦Z�,�W1 +��'E�;<�Y!+�i��/%�
2. EMI ¬[���t&����§����D�tW1 )a}-EMI¨©,+ ���-1AZ[).qi/%���H&G��150 kHz$/,'W1 ) �;<'CISPR22��$��%�+��/%�@&p£��SMPS&����ª&�>�FSW = 130 kHz$+�%'@E��S�W1 $150 kHz«�)y`�z&¬-��|&()[$�\-./%�ª&�>�;�-1$2)%'�+��'E.Vp£��65 kHz�+�;<-./%�
Y\]W1 ��u]8��X��W1 &2�%��+\-�Y�]W1 $6240 kHz)�L/%�S�,)��23&150 W FCCrM PFC�1�2$��%'@E)��/%�@&®���OMN&|&�L)�%'�?$0¯/?x�@<S&�O�°±KS¢²%'KS�%����j�+�S�EC)J.-�0¯/%�
��EF�GH
CrMEFCCrM(CrM^_+�.X��EI� 5��³;<'EqL)���1J&HPf�&(I�)r�������9Erms�����9��E&UV)��/%�
(eq. 1)
� 2� � 32590
� 5.1 A
�IL(pk)�
MAX�
2 2� � �(Pin,avg)max
2�
�Vin(rms)�
LL
�
�U�
(eq. 2)�IL(rms)�
MAX��IL(pk)
�MAX
6�� 5.1
6�� 2.1 A
@@��(Vin,rms)LL��I�&rmsX��J(Pin,avg)max�I�AZ[&`O´µO
Vout,nom��zmOJ(KLGAZ[)
*>����(�������(Vin,rms)LL = 90 VVout,nom = 390 V(Pin,avg)max = 325 W (92%&n®P+$qL/%+�@<��'U�&¯¶$�1x��·,�°�%)
p%&UV)�23&HP&W1 �X��$6120 kHz)�L/%��.X���I� 5&2Yy��%&'M�N+"��i'�ª&±H�i.�����+�����@@��2Y�U��2)��/%�@&|&)U��E&C+'K</%(@@��
fsw(max)�120 kHz&�X��W1 �%)�
(eq. 3)L �(Vin,rms)LL
2 � (Vout 2� � (Vin,rms)LL)
(Pin,avg)max � Vout,nom � fsw(max)
*>����(�������E&C+'K</%�
(eq. 4)L �902 � �390 ( 2� � 90)�325 � 390 � 120 � 103
� 139 �H
I�)�150 �H/6 Apk/2.5 Arms&c�[$+�/��
)*IJK
���2��Q�N��E&C�¸S<'r��9L�Ei�O)Sq.-+�%'�+��/%�
(eq. 5)
� 1.8 � Vf �32590
� 6.5 � Vf
Pbridge �4 2��
� Vf �(Pin,avg)max
(Vin(rms))LL
�
��Q�N���1 V&*¤²J(Vf = 1 V)E����2+66.5 W$i�%'@E$qL/%�HP³E)�r��J��A�(Vout(max)+s�2�)��U�3rms9(IM(rms)))Sq.-MOSFET$+�/%�
� 325
3� � 90� 1 8 � 2� � 90
3 � � � 390� � 1.8 A
IM(rms) �2
3��
�(Pin,avg)max
2�
(Vin(rms))LL� 1
8 � 2� � (Vin(rms))LL3 � � � Vout,nom
� �
(eq. 6)
600 V�0.4 �&FET(SPP11N60)$4�%'E�E&'��+¸S</%(��P-+´{��RDS(on)+80% �%'@E$qL)�
AND8407/D
http://onsemi.com4
(eq. 7)� 1.82 � 0.4 � 1.8 � 2.3 W
Pcond � IM(rms)2 � RDS(on) �
@&�O��HP+13&�>)VP�%�� %']8�23�'&��MOSFET&>�'���62(4.6 W))��/%����D�t��&µ¹�º��%�@@���O/?x�»4¶E-��l,)'��E�}�i;&��$¼�-�i/%�NCP1631����D�tW1 $�X��%'@E��@&UV�Oi�&´{$|&/%(@&*���uHP�Y\]W1 &120 kHz$½-',/?x)�P+$;S)#I%'��)�Figure 2&e�H$4�-MOSFET&Q���$�#G�i/%�@@��Q1&��NPN�X�2��(TO92)�MOSFET&���Q ·��9$ :/%�
M1
Q1R1010 k�
R2 R1
1N4148
DRV
Figure 2. Q1 Speeds Up the MOSFET Turn Off
D2
X��J$¾9%'`O���2E�23&HP&MOSFET���}¨�����$¸V/%��@&�O)Sq.-�>�i�O�E&()f)��/%�(6.5 + 4.6 + 4.6 �16 W) 2.9C/W&¨�����(437479)$��/%�@&¨�������(5v;<-.'`O���2EMOSFET&)(����&�§$�W)��)¿-650)|&/%��������PFC���23&§J��Q�N+��%(HP³E)13)��eÀ&¹6$Á�%'����/?x���Q�N�ºÂ) »�JL�(Vout(max)+s�2�)$����.*¤²J�y$"�-.'�+��/%�9+Qn)Ho;<'@E$qL%'E���Q�N&´µ9� 59&¼H)��/%�
� �ID(tot)(avg)
2�
ILOAD2
�Pout
2 � Vout�� �
ID(tot)(avg)
2�
ILOAD2
�Pout
2 � Vout�ID1(avg) � ID2(avg) �
ID(tot)(avg)
2�
ILOAD2
�Pout
2 � Vout� 0.39 A
�+\-�����UzE&UV)��/%�
�ILOAD � Vf
2�
@<���Q�N³E&°�%�J/��MUR550¾9]$4�%'��Q�N³E)500 mW«��%�u]8����Q�NKS��r��9��¿a%'�����&r��9E�}�i;�%�27&MUR550$+�/%�
LMFNO�P�Q���
�l,)�mOc�d�e�3J&{$� -��)��/%�
1.mOJ&V½�W1&I�Ã����[�`O9E`OO�¾¤E�TÄ1����PFC�1�2�� 5&O8E´µ&=+�Å%'¿�TÄ1O$��/%�z&¬-�mOJ�PFC_�)ÆV&�W1���[(J/��ÇÈ��100 Hz���[�ÉÊ��120 Hz���[)$>/%�
2.b[�"c�d�e)9`%'9&rms\:�@&�O)Sqi��!$Ëi�@;�.I�Ã�ESR$ÌL%'�+��/%�
3.À�[N���n��jG+Ín�&�)�\��>���G+I�O$��%'�&�'n�$ÎL%'@E��i/%�@<$À�[N���n�EÁ�/%�À�[N���n���l,)�10 ms/��20 ms&()�%�
mOJ���[�ÂE&C�¥,S</%�
(eq. 8)�Vout(p−p) �Pout
2� � fline � Cbulk � Vout,nom
c�d�e&rms9��E&C�¥,S</%(~� 5$qL)�
(eq. 9)
IC(rms) �16 � 2� � Pout
2
9 � � � (Vin(rms))LL � Vout � �2� Pout
Vout,nom
�2�I�)�E&C�À�[N���n�$Ï/%�
(eq. 10)thold−up �Cbulk � (Vout
2 Vout(min)2)
2 � Pout
@@��Vout(min)��y9c�b��+ 5) »)O$��%'��)�E;<'I�b[�J� %�
@@��À�[N���n�$� )`<�.&���@&Ä&2Y$��%��)100 �F&c�d�e$13+�/��r��"Å�"r��"���[�25 V (Vout&3%)�rms9�1.4 A�%�
AND8407/D
http://onsemi.com5
RSTUVW�!
NCP1631��O+&�G$Ëi�@;�)�PFC�1�2&I�W1 $�X��/%�@&_�)U��� 5n)���D�tW1 +�¦AZ[)"%'@E$�u/%�NCP1631d�������?$@��UV)�u]8&�X��W1 �����Y\]&W1 &¼H�%�
�+\-�
fsw(max)1 � fsw(max)2 � fsw(max) �fOSC
2(eq. 11)
@@��fsw(max)1���������PFC&IÆ&HP&W1 �X���fsw(max)2�2Ð�&HP)¿a/%fsw(max)1�U�fsw(max)2�Ñ�fsw(max)�2J&]8&.�<K&�X��W1 $Ï/%
fOSC�Y\]W1 �%
W1 !�[Nb��(�l,)�. 5&�Ò)+¢²�.�>�Y\]��zW1 fOSC(nom)
�\:$"��uHP�E&C�¥,S<'�z�X��W1 (fsw(max))nom�^_/%�
(fsw(max))nom �fOSC(nom)
2� 26 � 10−6
Cpin4
(eq. 12)
*,��220 pF&c�d�e 5KS��E&�X��W1 +'K</%�
(fsw(max))nom � 26 � 10−6
220 � 10−9� 118 kHz (eq. 13)
UVWXY�MZL[F
NCP1631��! 5n&P+$#I%'��)�W1 !�[Nb��_�$��-./%���)��Figure 3)>%UV)� 5+�LAZ[{y)�y��>��Y\]&�¨9��L���O)Ó*/%�
0102030405060708090
100110120130140150
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Figure 3. Frequency Fold-back
fOSC(nom) = 118 kHz
Vregul (V)
f OS
C (
kHz)
��������� ��������������
NCP1631r��8&r�6����%'O)Ó*%'VREGUL��$mO/%�r�6EtX�N&�)��%'~�(RFF)��E&UV)r�6&9(IFF)$-¾/%�
IFF �VREGUL
RFF
If �VREGUL
RFF
105 �A�IFF � 105 �A otherwise
����X��W1 �VREGUL)ÇÈ- �%'� ����(IOSC = 105�A)&Ei)I�°)"%'/��@& �+=i/%�
fOSC � fOSC(nom) If �VREGUL � RFF � 105 �A�
fOSC �VREGUL
RFF � 105 �� fOSC(nom) If �VREGUL RFF � 105 �A�
VREGUL�0~1.66 V&���^/%���0��O�VREGUL)Ó*%'&��W1 !�[Nb��)�%'O�A���[N��E&UV)��/%�
(Pin)FF �RFF � 105 �A
1.66 V� (Pin)HL �
(eq. 14)
�RFF
15 810� (Pin)HL
@@��(Pin)FF��@&°$ye\-.'�>�W1 +�y%'`OO
(Pin)HL��PFC�1�2+���i'É��I�AZ[&O�%�@&°������t~�&+�KS¸S<�¬-���(9I�O&-¾:l����$ÊÔ)��l,)��'U�&¯¶$�1
AND8407/D
http://onsemi.com6
x����(����&I�OU�ËÌÍÎÏÐÍ�i.°)�L/%�
*>����(�������4.7 k�&~�$r�6)��/%(RFF = 4.7 k�)��+\-�`OO+E&(Pin)FF�A���[N$ye\�Ei)W1 !�[Nb��+YZ/%�
(Pin)FF � 4.7 � 103
15 810� (Pin)HL � 30% � (Pin)HL (eq. 15)
*>����(�������I�`OO�325 W�%���E%'I�O$<�E�25%�e'O$���i'UV)�PFC�1�2$��%'@E+ÌÕ;</%���)��((Pin)HL � 494 W)$+ � / � � � +\ - �` O O+(30% (Pin)HL)�J/�6147 W$ye\�Ei)W1 !�[Nb��+YZ/%�
��������NCP1631��W1 $É��0)/�ËiyÑ/��d�����)�?$@��Figure 4&Ö×G�Y\]�C���>%UV)�e��IFF9$�;%'@E)U��W1 $�/%�@&9+0).q.�n$���Y\]&c�d�e$�%'��&35 �A&9G�Ëi=i4��i/%+�¨9�0).��3)9.¨n�$��3)�.W1 )�'@E+'K</%�0Ø���&¹6$�u%'��)�W1 +
16 kHz{y)�y%'@E$:ª-�;.�ÖÙ��Ú��“OSC”r�EtX�N&�)~�(RFmin)$���I�&Y\]¨9$Û|%'@E�%(Figure 4$ÊÔ)�
Figure 4. Adjustment of the Minimum Frequency
IFF
IFFCOSCRFmin
OSC
(Pin 4)
35 �A
DRV1
DRV2
CLK2
CLK1
OscillatorControlBlock
f�9IFF+0��'@E$qL%'E�35 �A&�9�RFmin)U\-Z�;<'Ü=,����9��U�COSC&¾Ý�&1 V&\:(Y\]+���D�tW1 $�X��-.'�&\:)$� -Y\Þ�$�O�i/%�@&�O$�d%'E�RFmin)U\-Û|;<'I��X��W1 (HP³E)$E&UV)'m�i/%�
(eq. 16)
� 1
2 � RFmin � COSC � �0.22 � In �RFmin114000
RFmin143000��
�fsw(max)�
min�
fOSC(min)
2�
*>����(�������(RFmin = 270 k�)�620 kHz&I�W1 $Û|/%�
Ò��r�6$tX�N)|��=%'E�W1 !�[Nb��+ßu;</%�r�6$(ÓY,K�VK)KK6��)tX�N)�=��>��n 5())6�\-e���z�X��W1 �^_/%�
AND8407/D
http://onsemi.com7
�7\�]\^_`
X��"�X¢��¢�ÝN(r�7)�����PFC`OJ(VIN)&��$ÔªÕ�/%�PFC&^_~�VIN�¾9;<�TÄ1�&��c�d�e�ACX�
�"���[$´àG�(VIN)&´µ°&��+�X¢��¢�"r�)Ö�;<'UV)%'�+��/%�
Figure 5. Brown-out Block
AC
Lin
e
EM
IF
ilter
Vin
BORt
Rt
Rcs
Cin
Rbo
1
Rbo
2C
bo
I BO
I BO
Vbo
Vbo
Cur
rent
Mirr
or
Vbo
(B
O P
in V
olta
ge)
Fee
d-fo
rwar
dC
ircui
try
IBO
Cha
rges
the
Tim
ing
Cap
acito
r fo
r B
oth
Pha
ses
BO
_NO
K
Tde
lay
Circ
uitr
y fo
rB
row
n-ou
t Det
ectio
n
100-
ms
Del
ay10
0-m
sD
elay
Res
etR
eset
Res
et
L BO
S R
Q
OP
AM
P1
V
Vdd
7 �A
AND8407/D
http://onsemi.com8
Figure 5)>%UV)��X¢��¢�"�C��)�2J&_�+��/%�
1. ¬�N !¡�N��X¢��¢�"r�&J�b� #;<�f�9IBO$Z�/%�@&9��`OJ&´µ°)Ó*�r�3&~�(Rt)E�=>6;</%�@&9�2×;<�23&HP&Q�n�$|^%'f�&����t"c�d�e$�%'9$��/%����Q�n���X��&�i;&2×)ØÓ*/%� ¬�N !¡�N_�)U��Ù"� �U�O���ACX��"AZ[KSsB-./%�
2.X��\:&�m+�3)�;��/%��X¢��¢���+�m;<��>�@&_��á;<'UV)�¨�1���&�,��7 �A&9G+BOr�&J$�/%�°±�&���(���������;<'J�PFC�1�2&��)a}-�ir��/%�ÚB^_p�PFC�1�2�Q ��`O���2�r���m]E-^_/%(Figure 6$ÊÔ)�z&¬-�`OJ���
�Û´â����ACX��&\:)wÜÑ��/%�
VIN � 2� � Vin,rms
@@���Vin,rms�X��&rmsJ�%��+\-�r�7)�;<'J�E&UV)��/%�
Vpin7 � 2� � Vin,rms �Rbo2
Rbo1 � Rbo2
ÚPFC�1�2&^_+(ã;<���`OJ�¾9;<�TÄ1)���r�7)Ö�;<'J�E&UV)��/%�
Vpin7 �2 � 2� � Vin,rms
�Rbo2
Rbo1 � Rbo2
J/��p&°&664%�%�
�+\-�°±�&���(�������PFC+^_-.'�>���}X��\:KS�36%�.BOr�J$'@E)��/��@&p£���i.¨�1���+��%�
Figure 6. Typical Input Voltage of a PFC Stage
Start of PFC Operation
2� � Vin,rms
Vin(t)2� � Vin,rms � sin(�t)
0
200
400
Figure 5�CboaRbo1abcdRbo2��e
Ý.Þe�+�X¢��¢�$�m�eÀ^_$�d%'@E)�'X��"AZ[$L�/%ß*>����(�������90 Vrms�^_%'UV)�L/��@&°��E&�A���[N$+�%'Ei)ABJ0��+��/%�
X��J+(Vin,rms)boH = 81 V (90 V&90%)$�e\�Ei)���1��^_$(ã/%�
X��J+(Vin,rms)boL = 72 V (90 V&80%)$ye\�Ei)��1���w$�m/%�
2.�Vpin7(BOr�&J)+àá&�A���[NEâä%'Ei(Vpin7&B½�+�EB½y+�)&´µ`OJ$L�/%ßX��J+BO�A���[N{y&�>�f�9G(IHYST = 7 �A���)+�^;<-�'U�&¨�1���+YZ�E&�>)e�+eÀ$�d/%�
Rbo2Rbo1 � Rbo2
� �Vin,avg�
boH�Rbo1 � Rbo2
Rbo1 � Rbo2� IHYST� � Vbo(th)
(eq. 17)
@@��(Vin,avg)boH�´µ`OJ����@&°$�e'Ee�+Q�)��/%�Vbo(th)�BO&f��A���[N�%(����1 V)�
�+\-�
�Vin,avg�
boH� �Rbo1 � Rbo2
Rbo2� Vbo(th)�� �Rbo1 � IHYST
�(eq. 18)
X��J+BO�A���[N$�e\-.'�>�f�9G(IHYST = 7 �A���)�Q ����BOr�&J�E&UV)��/%�
Vpin7 � kBO � Vin,avg � �1 fBO
3 � fline� (eq. 19)
AND8407/D
http://onsemi.com9
@@��(Vin,avg)�´µ`OJfline�X��W1
fBO��m ��¡��&åW1
�fBO �Rbo1 � Rbo2
2� � Rbo1 � Rbo2 � Cbo�
kBO�BO�m ��¡��&;<+
�kBO �Rbo2
Rbo1 � Rbo2�
;
�1 fBO
3 � fline�
�Equation 19&~)���BOr�&J���[(æ1�-1.a)$�O)��'@E+�i/%�
BOr�&J+Vbo(th)(BO&f��A���[N������1 V){y)�\��>��X¢��¢��w+�m;</%��+\-�´µJ+�E&C�Ï7;<'(Vin,avg)boLAZ[{y&�>�BO��+��ã;</%�
�Vin,avg�
boL�
VBO(th)
kBO � �1 fBO
3�fline� (eq. 20)
@@��(Vin,avg)boL�´µ`OJ����@&°{y)�'Ee�+Q )��/%�fBO��m ��¡��&åW1 �%�
�fBO �Rbo1 � Rbo2
2� � Rbo1 � Rbo2 � Cbo�
/��fline�X��W1 �%�
3. �OßEquation 20KS��X¢��¢�;<+)�%'E&C$'m�i/%�
KBO �Rbo2
Rbo1 � Rbo2�
VBO(th)
(Vin,avg)boL � �1 fBO
3�fline� (eq. 21)
äåæçèéêëÞËÝ$äåæçèéêëÞÝì)5`%'E�E&C+'K</%�
(Vin,avg)boH � �(Vin,avg)boL � �1 fBO
3 � fline��� (Rbo1 � IHYST)
(eq. 22)
z&��Rbo1)�%'E&C$'m�i/%�
Rbo1 �
(Vin,avg)boH �(Vin,avg)boL � �1 fBO
3�fline��
IHYST(eq. 23)
Rbo1)�%'�@&C$©4�%'E�Rbo2$Equation 21KS'm�i/%�
Rbo2 �Rbo1
�(Vin,avg)boL
VBO(th)� �1
fBO3�fline�� 1
(eq. 24)
»4¶E-E&C$qL/%�
�fBO �fline10�
J/��60 HzX��&�>�6 Hz)���E&C+¸S</%�
Rbo1 �
(Vin,avg)boH � �
(Vin,avg)boL �� �
1
fline10
3�fline������
IHYST�
(Vin,avg)boH �0.967 � (Vin,avg)boL�
IHYST(eq. 25)
Rbo2 �Rbo1
�(Vin,avg)boL
VBO(th)� �1
fBO3�fline�� 1
�Rbo1
�0.967 �(Vin,avg)boL
VBO(th)� 1
(eq. 26)
1J&*E-�°±�&PFC�1�2$� /%�@&�1�2���e�&^_n)�`OJ&´µ°+36%�y/%(Figure 6)H>�E��)��+\-�E&°$+�/%�
X��J+E&°$�e\�Ei)���1��^_$(ã/%�
(Vin,rms)boH � 81 V
X��J+E&°{y)�\�Ei)���1���w$�m/%�
(Vin,rms)boL � 72 V
¿a%'´µ`OJ�A���[N��E&C�¥,S</%�
(Vin,avg)boH � 2� � (Vin,rms)boH � 2� � 81 (eq. 27)
AND8407/D
http://onsemi.com10
�U�
(Vin,avg)boL � 2 2�� � (Vin,rms)boL � 2 2�
� � 72 (eq. 28)
@@��E&C$ç�+��/%�
Rbo1 �
� 2� � 81� �0.967 � 2 2�� � 72�
7 � 10−6 � 7410 k�
(eq. 29)
Rbo2 � 7410 � 103
� �
0.967�2 2�� �72
1 ��� 1
� 120 k�
(eq. 30)
Cbo �Rbo1 � Rbo2
2� � Rbo1 � Rbo2 �fline10
�
(eq. 31)�
7410 k � 120 k
2� � 7410 k � 120 k � 6010
�
� 225 nF
��)��43&1.8 M�~�$Rbo1E-|8)��(7.2 M�&>�~�)�120 k�&~�$Rbo2E-�220 nF&c�d�e$CboE-4�/%�
NCP1631&�X¢��¢�e�)��À�[N���n�íè$��%��&50 ms�X���t<é+fk;<-./%(d�����$ÊÔ)�
-f)*�gh
ênX��9��PFC�1�2&23&HP)U\-îï;<�>�9&(���D�tW1 n®)6�\-)´µG;<�°�%�@&°�E&C�¥,S</%�
Iin(t) �Vin(t)
L�
(Rt)2 � VREGUL
26.9 � 1012 � kBO2 � Vin,rms
2(eq. 32)
@@��
� (Rt)2 � VREGUL
26.9 � 1012 � kBO2 � Vin,rms
2��uHP&Q�n�$Ï%C�%�
(VREGUL)��f�������KLG�C��(VCONTROL)&mO)|},)ð¢/%�(VREGUL)��0~1.66 V&()��^/%�
Iin(t)�U�Vin(t)��ênX��9�U�ênX��J�%�
Vin,rms �X��&rmsJ
L�c�[&�������
kBO�BO�m ��¡��&;<+
�kBO �Rbo2
Rbo1 � Rbo2�
IinEVin$Kª'E�ênO$'m�i/%�
Pin(t) �(Rt)2 � VREGUL � Vin
2(t)
26.9 � 1012 � L � kBO2 � Vin,rms
2(eq. 33)
/��X��Þ�n®)6�\-ênO$´µG%'E�´µVOO)�%'E&C+¥,S</%�
Pin,avg �(Rt)2 � VREGUL
26.9 � 1012 � L � kBO2
(eq. 34)
¬�N !¡�N&¬-E-���;<'O�X��\:)ð¢?��(�X¢��¢��m&�,�4��U�|&�L;<')`OJ�m ��¡��&c�[&�������E�~�Rt&=&� )��/%�@&~���r�3)�=;<'����t~��%�
VREGUL�1.66 V)�X��;<'&��PFC�1�2KSÉ�����i'I�O((Pin)HL)��E&C�¥,S</%�
(Pin)HL �(Rt)2 � 1.66
26.9 � 1012 � L � kBO2 �
(Rt)2
16.2 � 1012 � L � kBO2
(eq. 35)
�+\-�
Rt � 4025 � 103 � kBO � L � (Pin)HL� (eq. 36)
�`n&¯¶$�/-�((Pin)HL)E-�µÞ;<'I�`OO$�Uz25%�e'°$+�%'�+��/%�J/��*>����(������(125% 325 W � 400 W))��/%�*>����(�������
L = 150 �H
Rbo1 = 7,200 k�� Rbo2 = 120 k��&��
�kBO �Rbo2
Rbo1 � Rbo2� 1
61�
�+\-�
Rt � 4025 � 103 � 161
� 150 � 10−6 � 400� � 16 � 2 k�
(eq. 37)
18 k�&~�$+��z&¬-�E&C+'K</%�
(Pin)HL �(18 � 103)2 � 612
16.2 � 1012 � 150 � 10−6 � 496 W
AND8407/D
http://onsemi.com11
Xi�ZL[Fj[^k�F
NCP1631��X��c������"�X�"���$�=1x�������200 �S&�X��c������"·��E20 �A&I��O$"�/%(Figure 7�ÊÔ)�PFC�1�2&mOJ��~�Ho)U\-[��HJ;<� ¬�Nb��`O(r�2)�Mñ�;</%�b���9�I�G;<(500 nA«�)���"��r����" ¬�Nb��" ��¡��$4��i/%�[��[��ëò$�d�i'UV)��X�"���&mO�r�KSmO;</%(r�5)�
Xi�ZL[F/ !/lmCD��eRfb1�U�Rfb2���;<'Figure 7&~�Ho��
PFCmOJ+�z°)Ñ.Ei)�Vpin2+f�� #A��J(VREF = 2.5 V))Ñ�'UV)�PFCmOJ)Ó*%'J$r�2)��%'�+��/%� m.ì,'E�
Rfb2
Rfb1 � Rfb2� Vout,nom � VREF (eq. 38)
/��
Rfb1
Rfb2�
Vout,nom
VREF 1 (eq. 39)
¬�Nb��~�)�%'�V1J&|&��~�+i�%'O�%�PFCmO&�J(���390 V&()))U'b���$Ö�;<'Rfb1ERfb2��~�°+�;.�>����) ímW$i�%'0��+��/%��l,)�b���9$100 �A&())�L%'@E$��)%'E���E���î�&���¡��A�NQ $"��i/%�@&2YKS�E&C+'K</%�
Rfb2 �VREF
100 �A� 25 k� (eq. 40)
���*>����(�������(Rf b2 =27 k�)$+�/��Equation 39)°\-�Rfb1�E&C�¥,S</%�
Rfb1 � Rfb2 � �Vout,nom
VREF 1� (eq. 41)
�+\-�390 V&KLGAZ[$��·��)/%�
Rfb1 � 27 k� � �3902.5
1� � 4185 k� (eq. 42)
`OJ�m ��¡��&�>E�è�º�&Rfb1~�&56�)�ï &~�$|8)��%'�+��/%�*>����(�������(1,800 k� + 1,800 k� + 560 k�)& ��¡��$+�/%� @&+�$�(Rfb2 = 27 k�)E�=>6?'E�E&C+¸S</%�
Vout,nom �Rfb1 � Rfb2
Rfb2� VREF (eq. 43)
�1800 k � 1800 k � 560 k � 27 k
27 k� 2.5 V
� 388 V
<=
NCP1631��X¢��¢�`OJ$4�-��'U�& ¬�N !¡�N$��/%�@&¬-�PFC�1�2&���&Ù"� $ACX��\:KSsB;?'@E+�i/%�U�ó®,)��b[�"c�d�e&ESR$ho�i/%�
(eq. 44)
V^
out
V^
REGUL
�(Rt)
2 � Rout53.8 � 1012 � L � kBO
2 � Vout,nom�
� 1
1 ��s �Rout�Cbulk
2�
@@��Cbulk�b[�"c�d�e�%�
Rout� 5&Ñô~��%�
Rt�r�3&[vª~��%�L�PFCc�[&��������%�KBO��X¢��¢�&;<+�%�
Vout,nom�PFCmO&KLGAZ[�%�
����.O+Ó$�7%'��)�����1�2��3)�.|^��:�J/�20 Hz{y&()$>%�+��/%��+\-� 5)õ=��^+YZ}��>���l,)��¦�Q�b� ������� ��+Z}/%� NCP1631��J��(OVP))U��Q�b� ��$|&/%(9�J��:l����$ÊÔ)����� ��$ð|%'��)�f�c�hA��� ¬�Nb��(Vpin2)$�o�Vpin2+�z°&95.5%$ye\��>�220 �A&9G$�=�ëòc�d�e&�$�#G/%�I�)�c�hA��E�X�"���&W$á�'�>��Uz10/�&°)�'&+ñ�%(Note 1)�@&������a�����e$����KJ�L0���J��_�E�=>6?'E�X��/ 5&õ=��x7>�����S�'2Yy�mOJ&*"$Rm�i'@E+�ò;</%��+\-�wEx�&���(�������.W1 &å$��%'@E����:$�:)|&�i/%����E&H�>%UV)�type2&ëò$��%'@E+ÌÕ;</%�
1. The circuit disables this capability (dynamic response enhancer) until the PFC stage output voltage has reached its target level (that is whenthe “pfcOK” signal of the block diagram, is high). This is because, at the beginning of operation, the pin5 compensation network must chargeslowly and gradually for a soft start-up.
AND8407/D
http://onsemi.com12
Figure 7. Regulation Trans-conductance Error Amplifier, Feed-back and Compensation Network
��
VREGUL2R
R
FB GEA = 200 �S
OTA+
VREF2.5 V
Vout
Rfb1
Rfb2(Pin2)
Vcontrol
(Pin5)Cp
Cz
Rz
Type-2&ëò])U\-�7;<'Ù"� $|^%'��&mO��E&UV)��/%�
V^
control
V^
out
�1 � sRzCz
sRo(Cz � Cp)�1 � sRzCz�Cp
Cz�Cp� (eq. 45)
@@�Â
R0 �Vout,nom
Vref � GEA
GEA��X��c������"�X�"���&·��(OTA)�Vout,nom��zmOJ(VoutKLGAZ[)�VREF�OTA&2.5 VJ� #A���%�
���NCP1631&PWMl�����Vcontrol$|�4�%'@E���VREGUL$4�/%�VcontrolEVREGUL$�¬%'~�Ho(5/9)$4�%'E�E&C+'K</%�
V^
REGUL
V^
out
�1 � sRzCz
s9�Ro
5� (Cz � Cp)�1 � sRz
Cz�Cp
Cz�Cp�
(eq. 46)
�+\-�E&C+¸S</%�
V^
REGUL
V^
out
�1 � s
2��fz
s2��fp0
�1 � s2��fp1
�(eq. 47)
@@��
fz��ëò]&W1 0�%�
fz �1
2� � Rz � Cz
fp1��ëò]&�.W1 å&W1 �%�
fp1 � 1
2� � Rz � � Cp�Cz
Cp�Cz�
fp0��´$&å&W1 �%�
fp0 � 518� � R0 � �Cp � Cz�
R0 �Vout,nom
Vref � GEA
ÐE�.W1 å&��ß60&]8����$"�%'@E+�i��+\-�60&]8s�2�$¸'��)�ëò]&0$(fc/4))����.W1 å$(4 fc))��%'@E+�i/%�@@��fc��+���C�Q�bW1 �%�@&CKS�E&C+'K</%�
fp1 � 42 � fz (eq. 48)
fp1Efz$Equation 48)5`%'E�E&C+'K</%�
Cp � Cz
Cp � Cz�
Cz16
(eq. 49)
�+\-�
Cz � 15 � Cp (eq. 50)
»���:$"�%'��&´$ö&å&���Equation 44��PFC����&?,�´$$E&UV)�L/%�
Go �(Rt)2 � Rout
53.8 � 1012 � L � kBO2 � Vout,nom
(eq. 51)
fc+t/.�C�Q�bW1 ��'�>�§Jc�b��&å+�ëò]�+��0&]�)�L;<'UV)� 5÷�´$&å$��%'�+��/%�
�+\-�
−20 � log� fcfp0� � −20 � log�G | �Rout �
4� � Cbulk � fc
��(eq. 52)
/��
AND8407/D
http://onsemi.com13
fp0 �fc
G0 | Rout �4
��Cbulk�fc
(eq. 53)
@@KS�E&C+'K</%�
fp0 �
fc4�Rt
2
� � 53.8 � 1012 � L � Cbulk � kBO2 � fc � Vout,nom
(eq. 54)
@&C�E&UV)Ö×G�i/%�
fp0 �� � 53.8 � 1012 � L � Cbulk � kBO
2 � fc 2 � Vout,nom
4 � Rt2
(eq. 55)
@@��kBO�BO�m ��¡��&;<+
�kBO �Rbo2
Rbo1 � Rbo2�
fp0$�Equation 55)>�Ï7��iì,'E�E&C+'K</%�
518� � R0 � (Cp � Cz)
� 5
18� � � Vout,nom
Vref�GEA
� � (16 � Cp)
�
�� � 53.8 � 1012 � L � Cbulk � kBO
2 � fc2 � Vout,nom
4 � Rt2
(eq. 56)
GEAEVref$��°(z<ø<�200 �SE2.5 V)��iì,'E�Cp$¥,'E&C+'K</%�
Cp �Vref � GEA � Rt
2
7646.2 � 1012 � L � Cbulk � kBO2 � fc 2 � (Vout,nom)2
(eq. 57)
Rt$Equation 36)>�Ï7��iì,'E�p%&C+E&UV)Ö×G;</%�
Cp �1.06 � 10−6 � (Pin)HL
Cbulk � fc 2 � (Vout,nom)2(eq. 58)
Rz��e
ëò]&0$(fc/4))��%'E�E&C+'K</%�
fz �1
2� � Rz � Cz�
fc4
(eq. 59)
I�)��@&CKS�ëò ��¡��$��%'��&E&C$'m�i/%�
Cp �1.06 � 10−6 � (Pin)HL
Cbulk � fc 2 � (Vout,nom)2(eq. 60)
Cz � 15 � Cp (eq. 61)
Rz �2
� � Cz � fc(eq. 62)
*>����(�������
Cp � 1.06 � 10−6 � 497100 � 10−6 � 202 � 3902 � 86 nF (eq. 63)
��)��@<)..��°��'�68 nF&c�d�e$4�/%�
Cz � 15 � Cp � 1020 nF (eq. 64)
��)��1 �F&��,�c�d�e$+�/%�
I�)�
Rz �2
� � 1 � 10−6 � 20� 31.8 k� (eq. 65)
33 k�&~�$��/%�
60&()&]8s�2�$¼��i'UV)�ëò$�O/%��.W1 å$�U��.W1 )�L%'@E��i/%���)��Cp$�ÌÕ°&4/��i(RzECz&�½S��ó?�))�Vcontrolr�&���[$�;�THD$;S)#I%'@E��i/%��C�Q�bW1 ��G/?x�]8s�2�&�i;$5ò)%'@E��@&�ó$�d�i/%�]8s�2���I�30/���'@E+�i/%�U�ó®,)��E&UV)��/%�
�m � arc tan�fcfz� arctan� fc
fp1� (eq. 66)
@@��
fz��ëò]&W1 0�%�
fz �1
2� � Rz � Cz
fp1��ëò]&�.W1 å&W1 �%�
fp1 � 1
2� � Rz � � Cp�Cz
Cp�Cz�
Cp,E-150 nF&c�d�e$+�%'E�E&C+'K</%�
(fz � 5 Hz), (fp1 � 37 Hz), (�m � 76o 28o � 48o)
AND8407/D
http://onsemi.com14
CURRENT SENSE NETWORK
The
CS
blo
ck p
erfo
rms
the
over
-cur
rent
pro
tect
ion
and
dete
cts
the
in-r
ush
curr
ents
.
OC
P
In−
rus
h
Cu
rre
nt
Mir
ror
Figure 8. Current Sense Block
CIN
VIN
I IN
EM
IF
ilter
I CS
I CS
RO
CP
RC
S
I IN
Neg
ativ
eC
lam
p
M1
DR
V1
M2
DR
V2
L 1
CB
ULK
VO
UT
D2
L 2
D1
Vau
x1
Vau
x2
I OC
P =
200
�A
I CS
I CS
I CS
I ZC
D =
20 �A
(IC
S is
Pro
port
iona
lto
the
Coi
l Cur
rent
)
(fro
m Z
CD
blo
ck)
Qzc
d1Q
zcd2
AC Line
CS
9
+
LOAD
AND8407/D
http://onsemi.com15
NCP1631��c�[&9)Ó*%' &J$Mñ�%'UV)��;<-./%���)��9l��~�(Figure 8&RCS)$ô@h�)õ`�23&HP)U\-îï;<�>�9)Ó*%' &J$Z�/%�e���CSr�&J$0)y`%'��)�E;<'9$��%'Qg���$fk-./%(Figure 8$ÊÔ)�~�ROCP$CSr�ERCS&�)õ`%'E�E&UV)r�9&9$-¾�i/%�
(RCS � Iin) � (ROCP � Ipin9) � Vpin9 � 0 (eq. 67)
@@KS�E&C+'K</%�
ICS � Ipin9 �RCS
ROCPIin (eq. 68)
@@��Iin���������PFC�1�2&2J&]8)î.1/<�>�9�%�
e���e��[³E)9$|&%'��)�ICS$fk&210 �A9� #A��EÓA/%��+\-�c�[&I�9�E&UV)��/%�
Iin,max �ROCPRCS
� 210 �A (eq. 69)
Iö,)�Ó+(ROCP/RCS)��E&C)°\-�9|&$�L/%�
ROCPRCS
�Iin,max
210 �A(eq. 70)
@&9|&$�L%'��)23&[vªMN(ROCPERCS)$4�-.'&����E���î�&II&�A�NQ $"�%'��)�9l��~�$I G%'@E+�i/%�
23&HP)î.1/<'I�9�[1])>�UV)��������PFC)î.1/<'>�9��E&C�¥,S</%�
Iin,max � 2 2� �(Pin,avg)max
(Vin,rms)LL�� �
1 Vout,nom
4 � �Vout,nom � 2� � (Vin,rms)LL�����
if (Vin,rms)LL Vout,nom
2 2�(eq. 71)
Iin,max � 2 2� �(Pin,avg)max
(Vin,rms)LL� �1
Vout,nom
4 � 2� � (Vin,rms)LL
� if (Vin,rms)LL �Vout,nom
2 2�(eq. 72)
@@��(Vin,rms)LL��ùúûX��J&I�AZ[�%�(Pin,avg)max�`O´µO&I�AZ[�%�Vout,nom�mOJ&�zAZ[(/��mOKLGJ)�%�
*>����(�������
�(Vin,rms)LL � 90 Vout,nom
2 2�� 390
2 2�� 138�
�+\-�
Iin,max � 2 2� �(Pin,avg)max
(Vin,rms)LL�� �
1 Vout,nom
4 � �Vout,nom � 2� � (Vin,rms)LL�����
(eq. 73)
Iin,max � 2 2� � 32590
�� �
1 390
4 � �390 � 2� � 90������ 6.4 A (eq. 74)
ROCPERCS&+��`O9���[$ho%'E�RCS)U'����E&Ö×G�C�¥,S</%�
PRcs � RCS � �Pin,avg
Vin,rms�2
(eq. 75)
X��+��I�O$��%'�>&PFC�1�2&P+)üÜ%8¿,�÷B&� E-�RCS$+�%'@E��i/%�$�RCS+i�%'0��&�'Ù×&8¿o>E%'�>�@&2YKSE&C+'K</%�
� � (Pin,avg)max � RCS � �(Pin,avg)max
(Vin,rms)min�2
(eq. 76)
I�)�
RCS �� �(Vin,rms)min
2
(Pin,avg)max(eq. 77)
�U�
ROCP � RCS �Iin,max
210 �A(eq. 78)
�l,)�(= 0.2%))�L%'E���E���î�&���¡��A�NQ $"��i/%(J/��X��+�.�>)O&0.2%+RCS��6</%)�
AND8407/D
http://onsemi.com16
@&2YKS�RCS&E&°+'K</%�
Rcs � 0.2% � 902
325� 50 m� (eq. 79)
@&+�KS�ROCP~�&E&°+'K</%�
ROCP � 50 m �6.4 A
210 �A� 1.5 k� (eq. 80)
no)pqr(ZCD)
u]8������"�����KS¸S<�ø})Sq.-�ýC9�m(ZCD)ù0+¥,S</%����D+Q�)�\�n$��ZCDr�&J�E&°)Ñ��/%�
Vzcd � VinN
(eq. 81)
@@��Vin�ênACX��J�N�ø Ó(�E÷ø} EZCDëþø} &Ó)�%�
���D+Q )�\�n$��ZCDr�&J�E&°)Ñ��/%�
Vzcd �Vout Vin
N(eq. 82)
NCP1631�23&ZCDc�hA��$fk-./%�
1.IÆ&c�hA����HP2KSZCDJ$ÔªÕ'r�1$�m/%�
2. 2Ð�&c�hA����HP1KSZCDJ$ÔªÕ'r�16$�o/%�
@<S&ZCDc�hA��)�0.5 V&�A���[N+��/%(B½�+�n�250 mV&¨�1���)��+\-��S�'^_2Y�iú$dV�)�ZCDr��<�E�0.5 V+Õ¸;<'UV)N$e���L%'�+��/%�ZCDr��Õ¸;<'J���.X����TÄ1&�Ý)"�Ei)I�°)�'@EKS�E&C+'K</%�
N Vout � 2� � (Vin,rms)HL
�0.5
((Vin,rms)HL = 265 V)��U�(Vout = 390 V)&�>��$30«�)%'�+��/%�*>������ø}ÓE-10$+�/��~�RZCD1$�]81&ZCDø}EHP1&r�16&���V1J&~�RZCD2$]82&ZCDø}EHP2&r�1&�)C�/%�RZCD1ERZCD2��r�1Er�16)¿%'9`/��9m9$|&/%�@&9��2 mA&())�L-�;.(���E���&¾¤E�)��l,)�@<S&r�)I�&��A�+�,S<'&���.X��KS���9+9`%'�>�%��+\-�RZCD1ERZCD2��E&C$��%±H��i;$+�%'�+��/%�
RZCD1 � RZCD2 �2� � (Vin,rms)HL
IZCD � N�
(eq. 83)
� 2� � 2652 m � 10
� 19 k�
22 k�$+�/��
���@&~�&°E�ZCDr�&�;.¦Z�,&°)U\-�ZCDø}&ù0+�m;<-E)h[�&�^$(ã%'����t+½/�/%�pq,)��ZCD~���I��y�D&n$��^$(ã/%�@&�>��NA��J+I�&n$�MOSFET+Q�)Àô%'@E)������D�t��+I�&)ð,S</%�@&��$"�%'RZCD1ERZCD2&°���4)U\-II&�&$�Jª/%�°+�i%£'E�ZCD�Z��$�m%'/�&<én�+9��/%�z&�>�c��C�X�R�='M�N(DCM)�^_O++÷B$Ôª/%��)�ZCD~�+�;%£'�>��J+�.V½)E&NX�b�"h[�+(ã;<����D�tP++÷B$Ôª/%�
AND8407/D
http://onsemi.com17
:)sAB
NCP1631��J��E�J��&�,���&r�$1�o��--./%�NCP1631&�����23&3ÿ& ¬�Nb��" ��¡��$���i/%(Figure 10$ÊÔ)�
13�r�4( ¬�Nb��`O)) �;<'KLG$�,E/%�
�V13�OVP_�$�,E/%�
Figure 9. Configuration withOne Feed-back Network forBoth OVP and Regulation
Figure 10. Configuration with TwoSeparate Feed-back Networks
Figure 11. Another Configurationwith Two Separate Feed-back
Networks
OVP
Rout2
Rout3
Rout1FB
Vout (Bulk Voltage)
2 153 144 135 126 117 108 9
1 16
Rovp2
Rovp1
Rfb1
Rfb2
OVP
FB
Vout (Bulk Voltage)
1514131211109
162
34567
8
1 Rovp
Rfb1
Rfb2
1514131211109
16Rfb1
Rfb2
OVP
FB 2
34567
8
1
Vout (Bulk Voltage)
¿� ¬�Nb������'U�&�9�$�7�Kn�AZ[$²�;?'&��23& ¬�Nb��û�&�½SK��w+YZ��>��PFC�1�2$���i/%����KLG_�EOVP_���}� #A��J(VREF = 2.5 V)$4�%'&��üt%'�>��Figure 9)>%UV)º�& ¬�Nb��û�$4�%'@E��i/%��}� #A��J$4�-.'KLG�C��EOVP�C�����Rout2ERout3&~�&Ó+�OVP�A���[N$-¾/%� U�ó®,)��E&UV)��/%�
b[�KLGJ��E&UV)��/%�
Vout,nom �Rout1 � Rout2 � Rout3
Rout2 � Rout3� VREF (eq. 84)
(b[�)OVPAZ[��E&UV)��/%�
Vout,ovp �Rout1 � Rout2 � Rout3
Rout2� VREF (eq. 85)
OVPAZ[EKLGAZ[&��E&UV)��/%�
Vout,ovp
Vout,nom� 1 �
Rout3Rout2
(eq. 86)
*,��(Rout3 = 5% Rout2)��(Vout,ovp = 105% Vout,nom)U�õd/%�mOJ+OVPAZ[$�e\-.'@E$e�+�m�|��/�OVPAZ[$�e\-.'���O���D�Q )���O&��$�u/%�*>����(�������23&3ÿ&Vout�m ��¡��$��%'Q����$+�/�(Figure 10&��)�KLG ��¡��E�è�
Mñ�~�&��r����$E&°)%'�+��/%�
1.wEx�&G����b�Y$��%�+��/%+�'�+YZ-z&Y)�ý�i��'0��+Z}��>)���$|&�i'±H�i.°�
2.�¡����î�$"��i'±H�;.°
@@���100 �A&()&b���9$4�%'E��l,)�¡��A�NQ $"��i/%�
�+\-Â
Rovp2 �Vref
100 �A� 25 k� (eq. 87)
���¬-E-(Rovp2 = 27 k�)$+�/��
Rovp1 � Rovp2 � �Vout,ovp
VREF 1� (eq. 88)
*>����(�������410 V$��·��E-�E&C+'K</%�
Rovp1 � 27 k� � �4102.5
1� � 4401 k� (eq. 89)
Kn�&p£��º�&Rovp1&56�)�ï &~�$|8)��%'�+��/%�*>����(�������(1,800 k��+ 1,800 k��+ 820 k�)& ��¡��$+�/%��þ�OVPAZ[��E&UV)��/%�
Vout,ovp �Rovp1 � Rovp2
Rovp2� VREF (eq. 90)
�1800 k � 1800 k � 820 k � 27 k
27 k� 2.5 V
� 412 V
AND8407/D
http://onsemi.com18
Ò��Figure 11)>�UV)�OVP�m ��¡��&|&$�L%'ÿ&VP��Ú��E&+�$dV@E�%�
Rovp2 = Rfb2
Rovp1 = Rfb1 + Rovp�@@��Rovp�OVP�m ��¡��&�÷)�'~�&���%�
��
Vout,nom �Rfb1 � Rfb2
Rfb2� VREF
Vout,ovp �Rovp1 � Rovp2
Rovp2� VREF �
�Rfb1 � Rovp � Rfb2
Rfb2� VREF
�@&2J&C$¬>%'E�E&C+'K</%�
Vout,ovp � Vout,nom �Rovp
Rfb2� VREF
J/��Q�b� ��+E&°$'��Ei)�OVP��+����/%�
�Rovp
Rfb2� VREF�
tu
@&���(����"�������������&2]8PFC&��$��)%'��&®�,���C�D$ÌÕ/%�U�ó®,)��@&g�h����PFC�1�2&|&$�L%'��)�E;<'��CE��S�$Dk/��4()jG)¿a�i'�300 W&��,������(����$4�-�@&�Cl�$H>/��ÌÕ�¤/)°\-���300 W&�������PFC&��)�%'�?��NCP1631EVB/D[3]$ÊÔ-�;.�@&���(����"�
�����ÓA,�.���D�tW1 ()(120 kHz&�z�X��W1 )$+��)�KK6S��20%~100%& 5())¿-�90 Vrms�wÜ95%E.V�.P+$y`�i'@E$>/��{y&Ï��NCP1631��^%'�������
PFC$��%'Ei)ABJj�C$6/%��V1J&Ï��*>����(����&300 W)�-@<S&C$�O�¬-$>/%�
Table 1. GENERAL EQUATIONS − SUMMARY
PowerComponents
Coil Selection
L �(Vin,rms)LL
2 � �Vout,nom 2� � (Vin,rms)LL�
(Pin,avg)max � Vout,nom � fOSC(nom)
(IL,pk)max � 2� �(Pin,avg)max
(Vin,rms)LL
(IL,rms)max � 13��
(Pin,avg)max
(Vin,rms)LL
MOSFETConduction Losses (Pon)max � 1
3� RDS(on) � �(Pin,avg)max
(Vin,rms)LL�2
� �1 8 2� � (Vin,rms)LL
3� � Vout,nom�
Bulk Capacitor
(�Vout)pk−pk �Pout,max
Cbulk � � � Vout,nom
Cbulk �2 � Pout,max � tHOLD−UP
Vout,nom2 Vout,min
2
(IC,rms)max � �16 2�9�
�(Pin,avg)max
2
(Vin,rms)LL � Vout,nom��(Pout)max
Vout,nom�2�
AND8407/D
http://onsemi.com19
Table 1. GENERAL EQUATIONS − SUMMARY (continued)
Brown-out Block
BO Upper Resistor
Rbo1 �
(Vin,avg)boH �(Vin,avg)boL � �1 fBO
3�fline��
IHYST
BO Bottom ResistorRbo2 �
Rbo1
�(Vin,avg)boL
VBO(th)� �1
fBO3�fline�� 1
BO Filtering Capacitor Cbo �Rbo1 � Rbo2
2� � Rbo1 � Rbo2 � fBO
Timing Resistor Pin3 Resistor Rt � 4026 � 103 � kBO � L � (Pin)HL�
Oscillator
Oscillator Frequency(No Frequency Foldback) fOSC(nom) �
52 � 10−6
COSC
Clamp Frequencyper Branch �fsw(max)
�nom
�fOSC(nom)
2� 26 � 10−6
COSC
Fold−ForwardPower Threshold (Pin)FF �
RFF15810 �
� (Pin)HL
Minimum Frequency(per Branch)
�fsw(max)�
min� 1
2 � RFmin � COSC � �0.22 � In�RFmin114000
RFmin143000��
FeedbackResistors
Feedback Bottom Resistor Rfb2 �VREFIFB
Feedback Upper Resistor Rfb1 � Rfb2 � �Vout,nom
VREF 1�
OVP Resistors
OVP Bottom Resistor Rovp2 �VREFIFB
OVP Upper Resistor Rovp1 � Rovp2 � �Vout,ovp
VREF 1�
LoopCompensation
Cp Capacitor of theType2 Compensation Cp �
1.06 � 10−6 � (Pin)HL
Cbulk � fc 2 � (Vout,nom)2
Cz Capacitor of theType2 Compensation Cz � 15 � Cp
Rz Resistor of theType2 Compensation Rz �
2� � Cz � fc
AND8407/D
http://onsemi.com20
Table 1. GENERAL EQUATIONS − SUMMARY (continued)
Current Limitation
Maximum Level of theInput Current
Iin,max � 2 2� �(Pin,avg)max
(Vin,rms)LL�� �
1 Vout,nom
4 � �Vout,nom � 2� � (Vin,rms)LL�����
Iin,max � 2 2� �(Pin,avg)max
(Vin,rms)LL� �1
Vout,nom
4 � 2� � (Vin,rms)LL
�if (Vin,rms)LL
Vout,nom
2 2�
if (Vin,rms)LL �Vout,nom
2 2�
Current Sense Resistor RCS �PRcs � (Vin,rms)LL
2
(Pin,avg)max2
Over Current Resistor ROCP �RCS � Iin,max
210 � 10−6
fOSC(nom)�W1 !�[Nb���&Y\]
W1 �%�
(fsw(max))�(W1 !�[Nb���&�>&)uHP)�%'�z�X��W1 �%�
�fOSC(nom)
2�
(fsw(max))min�W1 !�[Nb��&¬-E
-Z}��uHP)�%'I��X��W1 �%�
Vout,nom�PFC�1�2&�zmOJ(KLGAZ[)�%�
(Vin,rms)LL�X��&rmsJ&I�AZ[�%�
(Pin,avg)max�`O´µO&I�AZ[�%�
(IL,pk)max���������PFC(3^_n)&13&HP)î.1/<'I�r��9�%�
(IL,rms)max���������PFC(3^_n)&13&HP)î.1/<'I�rms9�%�
Pon�MOSFET&'���%(13&HP)�
RDS(on)�MOSFET&Q�n~��%(13&HP)�
(�Vout)pk−pk�mOr��"Å�"r��"���
[�%�
��X��&�W1 �%(� = 2� fline)�
fline�X��W1 �%�
Cbulk�b[�"c�d�e�%�
tHOLD−UP�ÎL&À�[N���n��%�
(IC,rms)max�b[�"c�d�e&rms9�%�¥,S<��O��~� 5$qL-./%�
Vout,min�y9c�b���Ԫ`<0���mO
J&I�AZ[�%�
(Pin)HL������t~�&+�)U\-�;<
'�PFC�1�2+���i'��I�&AZ[
�%��`n&¯¶$�/-�((Pin)HL)E-�µÞ;<'I�`OO$�Uz30%�e'°$+�%'�+��/%�J/��
�(Pin)HL � 130% � (Pin,avg)max� (Pin)FF��@&°$ye\-.'�>�e�+��
�D�tW1 &�y(W1 !�[Nb��)$(ã%'`OOAZ[�%�
RFF�r�6EtX�N&�)���W1 !�[Nb��&�$|^%'~��%�
RFmin�Y\]r�EtX�N&�)���I�
W1 $-¾%'~��%�fOSC(nom))�-¥,S<��OC&~���fOSC(nom)&°)¿%'~U�&÷B$� -.
/?x�
Rfb1ERfb2�� ¬�Nb���m~��%�
Rovp1ERovp2��OVP�m~��%�
Vout,ovp�OVPmOJ�%�
VREF�f�&2.5 VJ� #A���%�
Rbo1ERbo2���X¢��¢��m~��%�
kBO��X¢��¢�&;<+�%�
�kBO �Rbo2
Rbo1 � Rbo2�
fBO��BOr�&[vªc�d�e(Cbo)E�Rbo1�
U�Rbo2&�=>6?)U\-¸S<�W1 å�%�
IHYST��¨�1����,�4�;<'�7 �A&f�9G�%�
(Vin,avg)boH�e�+^_$(ã�Ei&�´µG
;<�`OJ�%�
�(Vin,avg)boH � 2� � Vin,rms�
AND8407/D
http://onsemi.com21
@<�°±�&����1�2&�>�%�
(Vin,avg)boL��´µ`OJ��@&°$ye'E�
�X¢��¢���+����/%�
�(Vin,avg)boH � 2 2�� � Vin,rms�
@<�°±�&����1�2&�>�%�
VBO(th)�f�&1 V�X¢��¢�J� #A���%�
Rz, CzECp�ëòMN�%�
fc��C�Q�bW1 �%�
RCS�9l��~��%�
PRcs�Rsensen®&���%�
�l,)�I�O&0.2%)�L%'E����î�EP+&���¡��A�NQ $"��i/
%�
ROCP�CSr�ERCS&�)��%'~���`O
9&I�AZ[(23&HP)U\-îï;<'>�9)$�L/%�
ëò)�%'Ò��60&()&]8s�2�$¼��i'UV)�ëò$�O/%��.W1 å$�U��.W1 )
�L%'@E��i/%���)��Cp$�ÌÕ°&4/��i(RzECz&�½S��ó?�))�Vcontrolr�&���[$�;�THD$;S)#I%'@E��i/%�]8s�2�$�;%'@E��@&�ó$�d�i/%�]8s�2���I�30./���'@E+�i/%�
v1w 300 Way+,�)z]{|�}~�HP³E)�120 kHz&W1 �X��$+�/%�I�mOO+300 W&�>�`OO$I��Uz325 W)�L�i'EqL/%(X��+I�&�>�92%&P+"@<��'U�&¯¶$�1x��·,�°�%)�O�,((Pin)HL)��U��i.125%�J/�400 W)�L/��I�`OJ�90 Vrms����X��vmsJ+
81 V$',�Ei)e�+^_$(ã�X��\:+72 V{y)�\�Ei)�X¢��¢��w+�m;<'UV)�X¢��¢�"�C��&|&$�L/��KLGAZ[$390 V (Vout,nom = 390 V)�OVPAZ[$410 V (Vout,ovp = 410 V))�L/%�
100 �F&b[�"c�d�e$��/%�i�O+I�O&0.2%$',�.UV)�9~�$+�/%(PRsense = 0.2% (Pin,avg)max)�
Table 2. EQUATIONS − SUMMARY
PowerComponents
Coil Selection
L �902 � �390 2� � 90�
320 � 390 � 120 k� 140 �H
(IL,pk)max � 2� � 32090
� 5.0 A
(IL,rms)max � 13�� 320
90� 2.1 A
A 150−�H � 6 Apk � 2.5 Arms coil was selected
MOSFETConduction Losses (Pon)max � 1
3� RDS(on) � �320
90�2
� �1 8 2� � 903� � 390
� � 3 � RDS(on)
Bulk Capacitor
(�Vout)pk−pk �300
100 � � 2� � 60 � 390� 20 V (fline � 60 Hz)
Cbulk �2 � 300 � tHOLD−UP
3902 3302 � 0.014 � tHOLD−UP
(IC,rms)max � �16 2�9�
� 3252
90 � 390� �300
390�2� � 1.3 A
Brown-out Block
BO Upper ResistorRbo1 �
115 �65 � �1 10%3��
7 � 10−6 � 7450 k�� 7200 k�
BO Bottom ResistorRbo2 � 7200 � 103
�651
� �1 10%3�� 1
� 116 k� � 120 k�
BO Filtering CapacitorCbo �
7200 k � 120 k2� � 7200 k � 120 k � 10% � fline
� 13.5 � 10−6
fline� 220 nF
(fline � 60 Hz)
AND8407/D
http://onsemi.com22
Table 2. EQUATIONS − SUMMARY (continued)
Timing Resistor Pin3 Resistor Rt � 4026 � 103 �120 k
7200 k � 120 k� 150 � � 400� � 16.2 k� � 18 k�
� (Pin)HL � 494 W
Oscillator
Oscillator Frequency(No Frequency Foldback) fOSC(nom) �
52 � 10−6
220 � 10−12 � 236 kHz
Clamp Frequencyper Branch �fsw(max)
�nom
�fOSC(nom)
2� 118 kHz
Fold-ForwardPower Threshold (Pin)FF �
RFF15810 �
� (Pin)HL �4700 �
15810 �� 494 � 147 W
Minimum Frequency(per Branch)
�fsw(max)�
min� 1
2 � 270 k � 220 p � �0.22 � In�270 k114 k270 k143 k
��� 19.8 kHz
FeedbackResistors
Feedback Bottom Resistor Rfb2 � 2.592 �
� 27 k�
Feedback Upper Resistor Rfb1 � 27 k � �3902.5
1� � 4185 k�
OVP Resistors
OVP Bottom Resistor Rovp2 � 2.592 �
� 27 k�
OVP Upper Resistor Rovp1 � 27 k � �4102.5
1� � 4400 k�
LoopCompensation
Cp Capacitor of theType2 Compensation Cp � 1.06 � 10−6 � 494
100 � 10−6 � 202 � 3902 � 86 nF � 68 nF
Cz Capacitor of theType2 Compensation Cz � 15 � 68 n � 1.02 �F � 1.0 �F
Rz Resistor of theType2 Compensation Rz �
2� � 1.0 � � 20
� 31.8 k� � 33 k�
Current Limitation
Maximum Level of theInput Current Iin,max � 2 2� � 325
90�� �
1 390
4 � �390 � 2� � 90������ 6.4 A
Current Sense Resistor RCS � 0.2% � 325 � 902
3252 � 49.8 m� � 50 m�
Over Current Resistor ROCP � 50 � 10−3 � 6.4210 � 10−6 � 1.52 k� � 1.5 k�
AND8407/D
http://onsemi.com23
Figure 12. Application Schematic
Dio
des
D16
and
D17
are
impl
emen
ted
to d
eriv
e th
e in
-rus
h cu
rren
t tha
t can
take
pla
ce d
urin
g th
e st
art-
up p
hase
. D17
is a
ctua
lly o
ptio
nal.
It sh
ould
be
adde
d on
ly if
the
volta
geac
ross
the
curr
ent s
ense
res
isto
r ca
n be
com
e so
hug
e du
ring
the
in-r
ush
curr
ent,
that
it c
ause
s th
e cu
rren
t sen
se c
urre
nt (
I pin
9) to
exc
eed
10 m
A.
If pl
aced
, the
D17
forw
ard
volta
ge m
ust b
e hi
gh e
noug
h no
t to
clam
p th
e cu
rren
t sen
se v
olta
ge (
R24
vol
tage
) in
nor
mal
ope
ratio
n. In
our
app
licat
ion,
the
R24
vol
tage
is lo
wer
than
(50
m�
6
.4 A
), i.
e., 3
20m
V w
hich
is fa
r be
low
the
D17
forw
ard
volta
ge.
D21
, R2
and
C34
are
to la
tch
off t
he p
art w
hen
VC
C e
xcee
ds 1
7.5
V (1
5 V
of t
he Z
ener
dio
de +
the
2.5
V o
f the
inte
rnal
com
para
tor t
hres
hold
). W
hen
a fa
ult i
s de
tect
ed, t
he c
ircui
t is
perm
anen
tly s
hutd
own
until
the
part
is r
eset
. If s
uch
a pr
otec
tion
is n
ot n
eces
sary
, the
se c
ompo
nent
s ca
n be
rem
oved
and
pin
10
can
be g
roun
ded.
R122680 k�
R121680 k�
R122680 k�
Earth
N
L
90−265 VACC61 �FL4
150 �H
C134.7 nFType = Y1
C124.7 nF
Type = Y1
CM1 Type = X2C18680 nF
IN
+ −
C1100 nF
KBU6KU1
R41
1800 k�
R42
1800 k�
R43
1800 k�
R44
1800 k�
R45
120 k�
C28 220 nF
C27 1 nFOVP
in
VOUTR39
1800 k�
R38
1800 k�
R23x
1800 k�
R40
27 k�
R321800 k�
R311800 k�
I IN
1N54
06
D16
Vaux2
R18820 k�
R1422 k�
C221 nF
R25
27 k�
R3318 k�
R34
270
k�
C15220 pF
C20150 pF
I IN
C251 �F
R3639 k�
R374.7 k�
OVPin
161
152
143
134
125
116
107
98
1N54
06
D17
R2450 m�
(3 W)R1
1.8 k�
R21 k�
DRV 2
D2115 V
C3410 nF
C33100 nF
C32100 �F
15 V+ −
VCC
R1522 k�
R72.2 �
C30100 nF
pfc OK
D141N4148 Q1
2N2907
R1110 k�
X4
SP
P11
N60
D4MUR550
R172.2 �
D151N4148 Q2
2N2907
R2010 k�
DRV 2
X6SPP11N60E
C2x100 �F/450 V
+
X1
X7
VIN
VOUT
Icoil2
Vaux2
Icoil1
D5
MU
R55
0
+ −
390 V
AND8407/D
http://onsemi.com24
����
[1] Joel Turchi, “Characteristics of Interleaved PFCStages”, Application Note AND8355,http://www.onsemi.com/pub/Collateral/AND8355−D.PDF
[2] Joel Turchi, “Designing a high-efficiency, 300-W,wide mains interleaved PFC”, Application NoteAND8354,http://www.onsemi.com/pub/Collateral/AND8354−D.PDF
[3] Stephanie Conseil, “Performance of a 300-W, widemains interleaved PFC driven by the NCP1631”,NCP1631EVB/D,http://www.onsemi.com/pub/Collateral/NCP1631EVB−D.PDF
ON Semiconductor��ON�� !Semiconductor Components Industries, LLC (SCILLC)�"#$%&'�(SCILLC!)*+$%+,-.+/01234�5678. 9��.:;78��<�3��(SCILLC�=>?)*�@A9BC�D EFG!+HI&J�K�&L�(www.onsemi.com/site/pdf/Patent-Marking.pdfMNSCILLC!OPQR&S�C�D '�=>�TU;VW.:;X8��(SCILLC!+)�Y6�Z[�=>�@\] �RGX^+_`;ab+SCILLC!cZ+=>def�gAdhAijkl�FiQ�mn<opb+) q) r+st6+uv6Qwx;yz{+S|j }�~|QF�mn;����<�3��(SCILLC�����Dd��� �~|���]�'��%�6������!+�Q�J�C�����&!T�����]{'��� T�R���]�!��33< �� T�����]{'�(�%�6�;yz��G��-�����!+���� ¡¢£ ¤¥G��J�C�����¦3 §�~|Q¨|©QjQF(SCILLC!+ª�)*.dª�4�.:�I+FiQ��«K��<¬RQF<�3��(SCILLC=>!+®¯°�±²6³´;Y63����µ¶°�hA+k·¸¹;Y63RZJ�C�����+SCILLC=>�º» ¤�+¼½d¾;¿LÀS�ÁÂ{ÀS�Ã�¤WQJ�C�����QÄ°�hA;Y6 �Å~|GÆjb+cZ��<ǨGFQF(ÈFÉ{+ª�¤WQÊË~|Z<�&!QF+Ì*��J�C�����A SCILLC=>;ÍÎcZ!hARZÏ\+Z3ÐÑRÒG ÆFG+SCILLC{ª�Ó>��ÅcZ!=Ô �RGÕÖ×¥Z3ØÙ~|Z3RG<+ÈFÉ!+ª�¤WQÊËaÚhA+cZÌ*��hA �ÛRZ¼½d¾ij+ÜÝ+Þ!�Ý6 kl���G����¶+ßA+wx+àß+cZáâQãäåæ���G;çèR+SCILLC3ª�éê+ë0ê+ìíî+�Ûíî+ïðñ 9RG+òj�wx<óÐQF<�3��(SCILLC!�Aôíõö?÷røù�
AØ&'�(S�úæ!'jû�,-.ü�9B3Q¥GÆ�+FiQ�ýü ¤¥G<þ���3��(
PUBLICATION ORDERING INFORMATIONN. American Technical Support: 800−282−9855 Toll FreeUSA/Canada
Europe, Middle East and Africa Technical Support:Phone: 421 33 790 2910
Japan Customer Focus CenterPhone: 81−3−5817−1050
AND8407JP/D
LITERATURE FULFILLMENT:Literature Distribution Center for ON SemiconductorP.O. Box 5163, Denver, Colorado 80217 USAPhone: 303−675−2175 or 800−344−3860 Toll Free USA/CanadaFax: 303−675−2176 or 800−344−3867 Toll Free USA/CanadaEmail: [email protected]
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your localSales Representative