application solution of dc/dc converter … application solution.pdf · application solution of...

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APPLICATION SOLUTION OF

DC/DC CONVERTER MODULE I. FIELD BUS 1. RS-485 TYPICAL APPLICATION ISOLATED SINGLE OUTPUT P2

2. RS-485 TYPICAL APPLICATION TWIN ISOLATION INDEPENDENT OUTPUT P4

3. RS-485 TYPICAL APPLICATION QUAD ISOLATION INDEPENDENT OUTPUT P6

4. RS-232 TYPICAL APPLICATION ISOLATED SINGLE OUTPUT P7

5. CAN BUS SERIAL COMMUNICATION INTERFACE APPLICATION CIRCUIT P9

6. ISOLATED CANBUS BASIC NODE APPLICATION P11

7. DEVICENET BASIC NODE APPLICATION P12

II. OPERATIONAL AMPLIFIER 1. ISOLATION AMPLIFIER POWER SOURCE APPLICATION P13 2. ISOLATION AMPLIFIER APPLICATION P14

III. A/D, D/A CONVERTER APPLICATION SOLUTION 1. SINGLE POWER A/D CONVERTER APPLICATION P15

2. DUAL POWER A/D CONVERTER APPLICATION P17

3. D/A CONVERTER APPLICATION P19

IV. LCD BACKLIGHT/CONTRAST ADJUSTOR APPLICATION 1. -24V APPLICATION P21

2. +24V APPLICATION P22

3. CONTRAST ADJUSTOR SPECIAL APPLICATION P23

V. MONOLITHIC PROCESSOR APPLICATION SOLUTION P24 VI. MEDICAL MONITOR SPECIAL APPLICATION CIRCUIT 1. ECG MONITOR CIRCUIT P26

2. ECG PREAMPLIFIER CIRCUIT P28

VII. TRANSMITTER/TRANSDUCER APPLICATION SOLUTION 1. 4-20mA PRESSURE TRANSMITTER APPLICATION CIRCUIT P30

2. GAS ALARM SYSTEM CIRCUIT P32

3. BASIC IGBT ISOLATED DRIVE APPLICATION P34

VIII. IGBT DRIVING APPLICATION SOLUTION ISOLATED DUAL IGBT APPLICATION CIRCUIT P35


I. FIELD BUS

1. RS-485 TYPICAL APPLICATION ISOLATED SINGLE OUTPUT

FEATURE DC-DC module and photounit restrains EMI and eliminates ground loop, protects the circuit system free interference from outside circuits. DC-DC POWER MODULE SELECTIONS GUIDE

SYSTEM POWER SUPPLY

ISOLATION VOLTAGE

GENERAL APPLICATION REGULATED APPLICATION LOW POWER CONSUMPTION

GENERAL DC-DC MODULES HIGH STABILITY DC-DC MODULES GERERAL DC-DC MODULES

PART NUMBER PACKAGE PART NUMBER PACKAGE PART NUMBER PACKAGE

5VDC 1000VDC

B0505LS-1WR

B0505LD-1W

B0505RN-1W

B0505S-1W

B0505D-1W

B0505(X)T-1W

SIP

DIP

SMD

MINI SIP

MINI DIP

SMD

IB0505LS-W75

IB0505LD-W75

IB0505T-W75

IB0505LT- W75

SIP

DIP

MINI SMD

SMD

B0505LS-W25

B0505LD-W25

B0505S-W25

B0505D-W25

B0505M-W25

B0505T-W25

SIP

DIP

DCP01

MINI SIP

MINI DIP

SMD

5VDC 3000VDC

（2000VAC）

F0505S-1WR

F0505D-1W

F0505M-1W

F0505T-1W

SIP

DIP

MINI SIP

SMD

IF0505S-W75

IF0505D-W75

SIP

DIP

F0505S-W25

F0505D-W25

F0505M-W25

F0505T-W25

SIP

DIP

MINI SIP

SMD


SYSTEM POWER SUPPLY

ISOLATION VOLTAGE




5VDC 6000VDC

（4000VAC）

H0505S-1W

H0505D-1W

SIP

DIP

NOTES: 1. Bxxxxx-xW is fixed input, isolated, unregulated single output series and IBxxxxx-xW is fixed input, isolated, regulated single out put series. 2. Fxxxxx-xw is fixed input, high-isolation, unregulated single output series and IFxxxxx-xW is fixed input, high-isolation, regulated single out put

series. 3. B0505RN-1W is exactly compatible to Burr-Brown part DCP010505P (Pin to Pin compatible) 4. If the input voltage of system is 12V or 24V, just select the relevant DC-DC modules of same input voltage. Please see our website for details or

contact us.

Notes: a. The capacitor C2 which attached to output of DC-DC modules could not be large, generally can not exceed

10uF, and for 0.25Watt models it is not recommended to add external capacitors, otherwise the modules may have problem while starting.

b. The measurement to determine resistor R2 which attached to output of DC-DCs can be: the power consumption of R2 should be 10% of the rated power of the DC-DC module.

c. For special requirements please contact us. Hotline Service number: +86-20-38601850 Ext.820 or 821 or 822 Website: http://www.mornsun.cn E-mail: [email protected]


2.RS-485TYPICALAPPLICATIONTWINISOLATION INDEPENDENT OUTPUT


FEATURE The use of twin isolation DC-DC module and photounits provides two independent #485 output. This solution reduces the cost, simplifies the circuit and makes it able to restrain surrounding EMI and to eliminate ground loop, protects the circuit system free interference from outside circuits.

DC-DC POWER MODULE SELECTIONS GUIDE

SYSTEM POWER SUPPLY

1000VDC ISOLATION GENERAL APPLICATION

PART NUMBER PACKAGE

5V

D050505（N）S-1W

D050505（N）D-1W

D050505T-1W

SIP

DIP

SMD

12V

D120505（N）S-1W

D120505（N）D-1W

D120505T-1W

SIP

DIP

SMD

24V

D240505（N）S-1W

D240505（N）D-1W

D240505T-1W

SIP

DIP

SMD

NOTE: Dxxxxx-1W is fixed input, twin isolation, unregulated independent output series

Notes:

a. The capacitor C2/C3 which attached to output of DC-DC modules could not be large, generally can not exceed 4.7uF, otherwise the modules may have problem while starting.

b. The measurement to determine resistor R2 / R3 which attached to output of DC-DC modules can be: the power consumption of R2 / R3 should be 10% of the rated power of the module.

c. For special requirements please contact us: Hotline Service number: +86-20-38601850 Ext.820 or 821 or 822 Website: http://www.mornsun.cn E-mail: [email protected]


3. RS-485 TYPICAL APPLICATION QUAD ISOLATION INDEPENDENT OUTPUT

FEATURE

The use of quad isolation DC-DC module and photounits provides 4 independent #485 output. This solution


reduces the cost, simplifies the circuit and makes it able to restrain surrounding EMI effectively and to eliminate ground loop, protects the circuit system free interference from outside circuits.


SYSTEM POWER SUPPLY 1000VDC Isolation

GENERAL APPLICATION PART NUMBER PACKAGE

5V J0505N-1W DIP

NOTE: JxxxxxD-1W is fixed input, quad isolation, unregulated quad output series

Notes:

a. The capacitor attached to output of DC-DC modules could not be large, generally can not exceed 2.2uF, otherwise the modules may have problem while starting.

b. The measurement to determine resistor R which attached to output of DC-DC modules can be: the power consumption of R should be10% of the rated power of the module.

c. For special requirements please contact us: Hotline Service number: +86-20-38601850 Ext.820 or 821 or 822 Website: http://www.mornsun.cn E-mail: [email protected]


4. RS-232 TYPICAL APPLICATION ISOLATED SINGLE OUTPUT

FEATURE

The use of DC-DC module and photounits restrains surrounding EMI and eliminates ground loop, protects the circuit system free interference from outside circuits.



SYSTEM POWER SUPPLY

ISOLATION VOLTAGE




5VDC 1000VDC

B0505LS-1WR

B0505LD-1W

B0505RN-1W

B0505S-1W

B0505D-1W

B0505(X)T-1W

SIP

DIP

SMD

MINI SIP

MINI DIP

SMD

IB0505LS-W75

IB0505LD-W75

IB0505T-W75

IB0505LT- W75

SIP

DIP

MINI SMD

SMD

B0505LS-W25

B0505LD-W25

B0505S-W25

B0505D-W25

B0505M-W25

B0505T-W25

SIP

DIP

DCP01

MINI SIP

MINI DIP

SMD

5VDC 3000VDC

（2000VAC）

F0505S-1WR

F0505D-1W

F0505M-1W

F0505T-1W

SIP

DIP

MINI SIP

SMD

IF0505S-W75

IF0505D-W75

SIP

DIP

F0505S-W25

F0505D-W25

F0505M-W25

F0505T-W25

SIP

DIP

MINI SIP

SMD

5VDC 6000VDC

（4000VAC）

H0505S-1W

H0505D-1W

SIP

DIP



contact us.

Notes:

d. The capacitor C2 which attached to output of DC-DC modules could not be large, generally can not exceed 10uF, otherwise the modules may have problem while starting.

e. The measurement to determine resistor R2 which attached to output of DC-DC modules can be: the power consumption of R2 should be 5%~10% of the rated power of the module.

f. For special requirements please contact us: Hotline Service number: +86-20-38601850 Ext.820 or 821 or 822 Website: http://www.mornsun.cn E-mail: [email protected]


5.CANBUSSERIALCOMMUNICATIONINTERFACE

APPLICATOIN CIRCUIT

FEATURE

a. The schematic above is a part of CAN BUS serial communication interface. To increase the anti-EMI ability

of the BUS nodes, in the circuit SJA1000’s TXD and RXD didn’t connect to 82C250’s TXD and RXD.

Rather it connected to 82C250 after passing 6N137. This realizes isolation perfectly between all nodes on

the CAN BUS. Just be sure the two power of 6N137 Vcc and Vdd be isolated, otherwise the photocoupler

losses its effectiveness.

b. It is recommended that the isolation between Vcc and Vdd be DC-DC power modules because modules

restrain surrounding EMI effectively, eliminate ground loop and protect the circuit system free interference

from outside circuits.



SYSTEM POWER SUPPLY

ISOLATION VOLTAGE




5VDC 1000VDC

B0505LS-1WR

B0505LD-1W

B0505RN-1W

B0505S-1W

B0505D-1W

B0505(X)T-1W

SIP

DIP

SMD

MINI SIP

MINI DIP

SMD

IB0505LS-W75

IB0505LD-W75

IB0505T-W75

IB0505LT- W75

SIP

DIP

MINI SMD

SMD

B0505LS-W25

B0505LD-W25

B0505S-W25

B0505D-W25

B0505M-W25

B0505T-W25

SIP

DIP

DCP01

MINI SIP

MINI DIP

SMD

5VDC 3000VDC

（2000VAC）

F0505S-1WR

F0505D-1W

F0505M-1W

F0505T-1W

SIP

DIP

MINI SIP

SMD

IF0505S-W75

IF0505D-W75

SIP

DIP

F0505S-W25

F0505D-W25

F0505M-W25

F0505T-W25

SIP

DIP

MINI SIP

SMD

5VDC 6000VDC

（4000VAC）

H0505S-1W

H0505D-1W

SIP

DIP



contact us.

REMARK: Bxxxxx-1W is fixed input, isolated, unregulated single output series and IBxxxxx-1w is fixed input, isolated, regulated single out put series. Fxxxxx-1w is fixed input, high-isolation, unregulated single output series and IFxxxxx-1w is fixed input, high-isolation, regulated single out put series. B0505XD-1W is exactly compatible to Burr-Brown part DCP010505P (Pin to Pin compatible) If the input voltage of system is 12V or 24V, just select the relevant DC-DC modules of same input voltage. Please see our website for details or contact us. ATTENTION:

a. The capacitor C11 which attached to output of DC-DC modules could not be large, generally can not exceed 10uF, otherwise the modules may have problem while starting.

b. The measurement to determine resistor R61 which attached to output of DC-DC modules can be: the power consumption of R2 should be 5% of the rated power of the module.

c. Choose H Series (6000VDC) if the application requires higher isolation voltage. d. For special requirements please contact us:

Hotline Service number: +86-20-38601850 Ext.820 or 821 or 822 Website: http://www.mornsun.cn E-mail: [email protected]


6. ISOLATED CANBUS BASIC NODE APPLICATION

VDD 6

GND4

5

1

3

U4

P113

VDD6

GND4

5

1

3

U5

P113

R34

R24

390

R31

390 R33

R32

390

U3

P82C250

R23

390

VCC

VCC +5V

R35

120

C3130pF

C3230pF

120

VCCR61

470

+5V

DC-DC CONVERTER

+5V

DC DC

U6

CANBUS

U2SJA1000T

Y212M

C21

30pF

C22

30pF

R21

4R7

R22

4R7

VCC

AD6AD7ALECS_CANRDWR

GNDXTAL3XTAL4VCCVCC

AD0AD1AD2AD3AD4AD5AD6AD7ALE

WRINT_CANCS_CANRSTS_CT

RD

AD0AD1AD2AD3AD4AD5

VCCGNDRXD1_CRXD_CVCCRST_LINT_CANGND

RXD1_C

TXD_C

RXD_C

123456789

1011121314 15

16171819202122232425262728

AD6AD7ALE/ASCSRD/EWRCLKOUTVSS1XTAL1XTAL2MODEVDD3TX0TX1 VSS3

INTRST

VDD2RX0RX1

VSS2VDD1

AD0AD1AD2AD3AD4AD5

1

2

3

4 5

6

7

8TXD

GND

VCC

RXD Vref

CANL

CANH

Rs

C111uF

FEATURE The use of DC-DC module and photounits restrains surrounding EMI and eliminates ground loop, protects the circuit system free interference from outside circuits.


SYSTEM POWER SUPPLY

ISOLATION VOLTAGE




5VDC 1000VDC

B0505LS-1WR

B0505LD-1W

B0505RN-1W

B0505S-1W

B0505D-1W

B0505(X)T-1W

SIP

DIP

DCP01

MINI SIP

MINI DIP

SMD

IB0505LS-W75

IB0505LD-W75

IB0505T-W75

IB0505LT- W75

SIP

DIP

MINI SMD

SMD

B0505LS-W25

B0505LD-W25

B0505S-W25

B0505D-W25

B0505M-W25

B0505T-W25

SIP

DIP

DCP01

MINI SIP

MINI DIP

SMD

5VDC 3000VDC

（2000VAC）

F0505S-1WR

F0505D-1W

F0505M-1W

F0505T-1W

SIP

DIP

MINI SIP

SMD

IF0505S-W75

IF0505D-W75

SIP

DIP

F0505S-W25

F0505D-W25

F0505M-W25

F0505T-W25

SIP

DIP

MINI SIP

SMD

5VDC 6000VDC

（4000VAC）

H0505S-1W

H0505D-1W

SIP

DIP



contact us.

Notes:

a. The capacitor C11 which attached to output of DC-DC modules could not be large, generally can not exceed


10uF, otherwise the modules may have problem while starting. b. The measurement to determine resistor R61 which attached to output of DC-DC modules can be: the power

consumption of R61 should be 10% of the rated power of the module. c. For special requirements please contact us:



7. DEVICENET BASIC NODE APPLICATION

FEATURE The use of DC-DC module and photounits restrains surrounding EMI, eliminates ground loop, and protects the

circuit system free interference from outside circuits. The modules provide a stable, high reliability power source as well.

DC-DC POWER MODULE SELECTIONS GUIDE POWER NET

RATED VOLTAGE

POWER NET WAVE

RANGE

DC-DC MODULES POWER NET WAVE

RANGE

DC-DCMODULES

PART NUMBER PACKAGE PART NUMBER PACKAGE

24V 18V~36V WRB2405CKS-1WWRB2405LT-3W WRB2405N-2W

SIP SMD

MINI DIP 9V~36V PWB2405CS-1W

PWB2405MD-1W5SIP

DIP

48V 36V~72V WRB4805CKS-1WWRB4805LT-3W WRB4805N-2W

SIP SMD

MINI DIP 18V~72V PWB4805CS-1W

PWB4805MD-1W5SIP DIP

NOTES: 1. WRBxxxxx-1W is wide input, isolated, regulated single output series and PWBxxxxx-1w is ultra wide input, isolated, regulated single output

series 2. DC-DC modules with higher power capability are available to select.

Notes: DeviceNet interface protection circuit should include wrong phase protection unit, lightning strike protection unit, and EMI elimination function. Mornsun’s protection circuit application solution can be selected here. For special requirements please contact us: Hotline Service number: +86-20-38601850 Ext.820 or 821 or 822 Website: http://www.mornsun.cn E-mail: [email protected]


II. OPERATIONAL AMPLIFIER

1. ISOLATION AMPLIFIER POWER SOURCE APPLICATION

VC02-

VC02+

GND

DC DC

A1

VCO1+

Iin+

Iin-

ISOLATION AMPLIFIER

VCC

VC01-GND

DC DC

VC02-

VC01+

VC01-

Device1

Device1

VC01+

FEATURE

a. In this circuit, we take for example where DC-DC module is used as power source of isolation amplifier, and where the amplifier’s operation voltage is +/-5V.

b. The use of DC-DC module and photounits restrains surrounding EMI, eliminates ground loop, and protects the circuit system free interference from outside circuits. The modules provide a stable, high reliability power source as well.


SYSTEM

POWER

SUPPLY

GENERAL APPLICATION LOW NOISE APPLICATION 1000VDC ISOLATION 300VDC ISOLATION 1000VDC ISOLATION


5V A0505S-1WR A0505D-1W

A0505(X)T-1W

SIP DIP

SMD

E0505S-1WRE0505D-1WE0505T-1W

SIP DIP

SMD IA0505S-1W SIP

12V A1205S-1WR A1205D-1W

A1205(X)T-1W

SIP DIP

SMD

E1205S-1WRE1205D-1WE1205T-1W

SIP DIP

SMD IA1205S-1W SIP

24V A2405S-1WR A2405D-1W

A2405(X)T-1W

SIP DIP

SMD

E2405S-1WRE2405D-1W

SIP DIP IA2405S-1W SIP

NOTES: 1. Axxxxx-1W is fixed input, isolated, unregulated dual output series 2. IAxxxxx-1w is fixed input, isolated, regulated dual out put series. 3. Exxxxx-1w is fixed input, high-isolation, unregulated dual output series

Notes: a. The application above is made while assuming operation voltage of the amplifier’s is +/-5V. For +/-9V

+/-12V or +/-15V applications please choose Mornsun’s corresponding products. b. The capacitor C2 and C3 which attached to output of DC-DC modules could not be large, generally can not

exceed 4.7uF, and for models with ±12V or ±15V output voltage the capacitance of C2 and C3 shall not exceed 2.2uF, otherwise the modules may have problem while starting.

c. To further reduce the power loss, please use low loss components. d. For special requirements please contact us:



2. ISOLATION AMPLIFIER APPLICATION

R

R

R

Load

0.47uF

0.47uF

C

0.47uF

v+

v+

0.01uF

PL

VL

Vin

C

R R

ISO

ISO

D C D C

D C D C

DC-DC CONVERTER

FEATURE

c. The power source is +/-15V; d. Using DC-DC modules to isolate power source, makes input and output free from any electrical relations and

this restrains surrounding EMI, eliminates ground loop, and protects the circuit system free interference from outside circuits.


SYSTEM POWER SUPPLY

GENERAL APPLICATION REGULATED APPLICATION WIDE INPUT RANGE HIGH POWER APPLICATION

1000VDC ISOLATION 1000VDC ISOLATION 1000VDC ISOLATION


5V A0515S-1WR A0515D-1W

A0515(X)T-1W

SIP DIP

SMD IA0515KS-1W SIP WRA0515CKS-1W SIP

12V A1215S-1WR A1215D-1W

A1215(X)T-1W

SIP DIP


24V A2415S-1WR A2415D-1W

A2415(X)T-1W

SIP DIP


NOTES: 1. Axxxxx-1W is fixed input, isolated, unregulated dual output series, 2. IAxxxxx-1W is fixed input, isolated, regulated dual out put series. 3. WRAxxxxx-1W is wide input, isolated, regulated dual output series. 4. For higher isolation applications, such as 3000VDC and 6000VDC, please select E, IE, G and WRE series.

The application above is made while assuming operation voltage of the system is +/-15V. For +/-5V and +/-12V

applications please choose Mornsun’s corresponding products. See datasheets for detailed application solution of DC-DC power modules. For special requirements please contact us at Hotline Service number: +86-20-38601850 Ext.820 or 821 or 822

Website: http://www.mornsun.cn E-mail: [email protected]


III. A/D, D/A CONVERTER APPLICATION SOLUTION

1. SINGLE POWER A/D CONVERTER APPLICATION

FEATURE

a. In this circuit, we take for example where DC-DC module is used as power source of ADC0809 and MONOLITHIC PROCESSOR 8031 circuit. ADC0809 use +5V input power, and requires accurate, low noise and low ripple source.

b. The use of DC-DC module and photounits restrains surrounding EMI, eliminates ground loop, and protects the circuit system free interference from outside circuits. The modules provides a stable, precision, low noise and low ripple power source as well.


SYSTEM

POWER

SUPPLY

HIGH PRECISION APPLICATION

1000VDC ISOLATION 3000VDC ISOLATION LOW LOSS APPLICATION


5V IB0505LS-W75IB0505LD-W75IB0505T-W75

SIP DIP

SMD

IF0505S-W75 IF0505D-W75

SIP DIP

IB0505LS-W25 IB0505LD-W25

SIP DIP

12V IB1205LS-W75IB1205LD-W75IB1205T-W75

SIP DIP

SMD

IF1205S-W75 IF1205D-W75

SIP DIP


SIP DIP

24V IB2405LS-W75IB2405LD-W75

IB2405-W75

SIP DIP

SMD

IF2405S-W75 IF2405D-W75

SIP DIP


SIP DIP

NOTES:

1. IBxxxxx-W75 is fixed input, 1000VDC isolation, regulated single output series.

2. IFxxxxx-W75 is fixed input, 3000VDC high isolation, regulated single output series.

Notes:

1

≥1

≥1

D Q CK Q

Vin Vin +Vo

TVS C1 C2

GND 0V

8031 CLOCK Vcc(+5V)

A VR+ B

C VR-

GND D0

ADC0809

D7 IN0

EOC

IN7

OE ALE START

G 74LS373 OC

DC DC

DC-DC CONVERTER

ALE P0.0

P0.7

INT RD P2.0

WR


a. The application above is made while assuming operation voltage of ADC0809 is +5V. For +9V +12V or +15V applications please choose Mornsun’s corresponding products.

b. The capacitor which attached to output of DC-DC modules could not exceed 10uF, otherwise the modules may have problem while starting. If the output voltage is ±12V or ±15V, the capacitor could not exceed 2.2uF.

c. For long term reliability concern, please do not use the modules at less than 10% rated power. Please select lower power modules for low power application, as for example 0.25W modules.

d. For special requirements please contact us: Hotline Service number: +86-20-38601850 Ext.820 or 821 or 822 Website: http://www.mornsun.cn E-mail: [email protected]


2. DUAL POWER A/D CONVERTER APPLICATION

FEATURE

a. In this circuit, we take for example where DC-DC module is used as power source of AD574 and MONOLITHIC PROCESSOR 8031 circuit. AD574 use +/-15V input power, and requires accurate, low noise and low ripple source.

b. The use of DC-DC module and photounits restrains surrounding EMI, eliminates ground loop, and protects the circuit system free interference from outside circuits. The modules provide a stable, precision, low noise and low ripple power source as well.


SYSTEM

POWER

SUPPLY

GENERAL APPLICATION HIGH PRECISION APPLICATION

(RECOMMENDED) 1000VDC ISOLATION 3000VDC ISOLATION 1000VDC ISOLATION


5V A0505S-1WR A0505D-1W

A0505(X)T-1W

SIP DIP

SMD

E0505S-1WR E0505D-1W E0505T-1W

SIP DIP

SMD IA0505S-1W SIP

12V A1205S-1WR A1205D-1W

A1205(X)T-1W

SIP DIP

SMD

E1205S-1WR E1205D-1W E1205T-1W

SIP DIP

SMD IA1205S-1W SIP

24V A2405S-1WR A2405D-1W

A2405(X)T-1W

SIP DIP

SMD

E2405S-1WR E2405D-1W


NOTES: 1. Axxxxx-1W is fixed input, isolated, unregulated dual output series 2. IAxxxxx-1w is fixed input, isolated, regulated dual out put series. (Recommended to use on A/D IC that request precision input) 3. Exxxxx-1w is fixed input, high-isolation, unregulated dual output series

DC-DC CONVERTER

+15V

-15

0~10V

0~20V

Vin Vin +Vo

TVS C1 0V C2

C3

GND -Vo

DC

DC

CS Vcc(+15V) A0 VEE(-15V) R/C VL(+5V)

DG AD574

DB11

REF IN REF OUT

BIP OFF

DB1 10VIN DB0 20VIN CE STS AG 12/8

8031

74LS373

74LS00

&

DC-DC CONVERTER

-15V


Notes: e. The application above is made while assuming operation voltage of AD574 is +/-15V. For ±5V, ±9V or ±12V

applications please choose Mornsun’s corresponding products. f. The capacitor C2 and C3 which attached to output of DC-DC modules could not exceed 1uF, otherwise the

modules may have problem while starting. If further reducing the ripple is necessary, you may include a LC circuit after the output of modules.

g. To further reduce the power loss, please use low loss components. h. For long term reliability concern, please do not use the modules at less than 10% rated power. Please select

lower power modules for low power application, as for example 0.25W modules. i. For special requirements please contact us:



3. D/A CONVERTER APPLICATION

FEATURE e. In this circuit, we take for example where DC-DC module is used as power source of DAC0832, and where

the DAC0832’s input voltage is +/-5V, high accuracy. f. The use of DC-DC module and photounits restrains surrounding EMI, eliminates ground loop, and protects

the circuit system free interference from outside circuits. The modules provide a stable, precision, low noise and low ripple power source as well.



SYSTEM

POWER

SUPPLY

GENERAL APPLICATION HIGH PRECISION APPLICATION

(RECOMMENDED) 1000VDC ISOLATION 3000VDC ISOLATION 1000VDC ISOLATION


5V A0505S-1WR A0505D-1W

A0505(X)T-1W

SIP DIP

SMD

E0505S-1WR E0505D-1W E0505T-1W

SIP DIP

SMD IA0505S-1W SIP

12V A1205S-1WR A1205D-1W

A1205(X)T-1W

SIP DIP

SMD

E1205S-1WR E1205D-1W E1205T-1W

SIP DIP

SMD IA1205S-1W SIP

24V A2405S-1WR A2405D-1W

A2405(X)T-1W

SIP DIP

SMD

E2405S-1WR E2405D-1W


NOTES: 4. Axxxxx-1W is fixed input, isolated, unregulated dual output series 5. IAxxxxx-1w is fixed input, isolated, regulated dual out put series. (Recommended to use on A/D IC that request precision input) 6. Exxxxx-1w is fixed input, high-isolation, unregulated dual output series

Notes:

a. The application above is made while assuming operation voltage of DAC0832 is +/-5V. For ±9V, ±12V or ±15V applications please choose Mornsun’s corresponding products.

b. The capacitor C2 and C3 which attached to output of DC-DC modules could not exceed 4.7uF, and for models with ±12V or ±15V output voltage the capacitance of C2 and C3 shall not exceed 2.2uF, otherwise the modules may have problem while starting. If further reducing the ripple is necessary, you may include a LC circuit after the output of modules.

c. To further reduce the power loss, please use low loss components. d. For long term reliability concern, please do not use the modules at less than 10% rated power. Please select

lower power modules for low power application, as for example 0.25W modules. e. For special requirements please contact us:



IV. LCD BACKLIGHT CONTRAST ADJUSTOR APPLICATION

1. -24V APPLICATION

R1

ADP05C24A +5V R3

Vin Vo(-24V)

R2 adj

GND

FEATURE

a. In this circuit, we take for example where DC-DC module is used as power source of LCD backlight and contrast adjustor, where the LCD backlight use +5V operation voltage, and where the contract adjustor use -24V input voltage.

b. The modules provide a stable, high reliability power source for LCD backlight and contrast adjustor. c. The divider resistor and adjustable resistor R1, R2 and R3 can be selected based on various demands, and the

objective is to get most comfortable visual. DC-DC POWER MODULE SELECTIONS GUIDE

SYSTEM POWER

SUPPLY -24V APPLICATION

PART NUMBER PACKAGE

5V ADP05C24A ADP05C24B

SIP WRAP

NOTES: 1. ADP05C24A: WIDE INPUT (5V-12V), NON-ISOLATION, -24V ADJUSTABLE OUTPUT, SIP PACKAGE. 2. ADP05C24: WIDE INPUT (5V-12V), NON-ISOLATION, -24V REGULATED OUTPUT, SIP PACKAGE. 3. ADP05C24B: FIXED INPUT (4.5V-5.5V), NON-ISOLATION, -24V ADJUSTABLE OUTPUT, WRAP PACKAGE.

Notes: a. The application above is made while assuming LCD IC does not include backlight power. If it does have one,

just use ADP05C24A for contrast adjusting. b. For special requirements please contact us:


VSS

VDD

ADJ

LCD DRIVING IC D0

13305

D7

/CE

RST

VEE

DC DC


2. +24V APPLICATION

R1

B0524LS-1W R3

+5V Vin Vo(+24V)

R2

0V

GND

FEATURE

a. In this circuit, we take for example where DC-DC module is used as power source of LCD backlight and contrast adjustor, where the LCD backlight use +5V operation voltage, and where the contract adjustor use +24V input voltage.

b. The modules provide a stable, high reliability power source for LCD backlight and contrast adjustor. c. The divider resistor and adjustable resistor R1, R2 and R3 can be selected based on various demands, and the

objective is to get most comfortable visual. DC-DC POWER MODULE SELECTIONS GUIDE

SYSTEM POWER SUPPLY

+24V APPLICATION PART NUMBER PACKAGE PART NUMBER PACKAGE

5V B0524LS-1WR ADP0524A

SIP SIP

B0524LD-1W

DIP

NOTES:

1. Bxxxxx-1W is fixed input, isolated, unregulated single output series.

2. ADP0524A is wide input (5V-12V), non-isolation, -24V adjustable or regulated output, sip package series.

Notes: a. The application above is made while assuming LCD IC does not include backlight power. If it does have one,

just use ADP05C24A for contrast adjusting. b. For long term reliability concern, please do not use the modules at less than 10% rated power. Please select

lower power modules for low power application, as for example 0.25W modules. c. For special requirements please contact us:


VSS

VDD

ADJ

LCD DRIVING IC

D0 GM0128

D7

/CE

RST

VEE

DC

DC


3. CONTRAST ADJUSTER SPECIAL APPLICATION

DC-DC CONVERTR

+5V Vin Vo(-6~-24V)

ADJ

GND RADJ

20K

FEATURE

a. In this circuit, we take for example where DC-DC module is used as power source of LCD backlight contrast adjustor, where the LCD backlight use +5V operation voltage, and where the contract adjustor use -6V ~ -24V wide range adjustable input voltage.

b. The modules provide a stable, high reliability power source for LCD backlight contrast adjustor. c. The adjustable resistor RADJ is 0-20K. It enables DC-DC modules to output in a wide range (-6V ~ -24V). You

can also select different adjustable resistor based on various demands, and the objective is to get most comfortable visual.


SYSTEM POWER

SUPPLY -24V APPLICATION

PART NUMBER PACKAGE

5V ADP05C24A ADP05C24B

SIP WRAP

NOTES: 1. ADP05C24A: WIDE INPUT (5V-12V), NON-ISOLATION, -24V ADJUSTABLE OUTPUT, SIP PACKAGE. 2. ADP05C24B: FIXED INPUT (4.5V-5.5V), NON-ISOLATION, -24V ADJUSTABLE OUTPUT, WRAP PACKAGE.

NOTES: a. The application above is specially made for contrast adjusting while assuming the LCD IC includes backlight

power (-24V). b. For special requirements please contact us:


DC DC

Vss VDD ADJ A0 D0 LCD IC D7 CE RST VEE


V. MONOLITHIC PROCESSOR APPLICATION SOLUTION P1.0 VCC P0.0

DC-DC CONVERTR

+24V Vin Vo

P1.7 P0.7 C1 C2 RL RST/VPD EA/VPP

P3.0 ALE/PROG PSEN

GND 0V P2.7

P3.7 XTAL2 XTAL1

VSS V2.0

FEATURE

a. In this circuit, we take for example where DC-DC module is used as power source of monolithic processor MCS-51 and where the processor use +5V operation voltage with a variety range of 4.75V~5.25V.

b. The use of DC-DC module and photounits obstructs the relations between input side and output side, restrains surrounding EMI, eliminates ground loop, and protects the circuit system free interference from outside circuits.


SYSTEM

POWER

SUPPLY

GENERAL APPLICATION REGULATED APPLICATION WIDE INPUT RANGE HIGH POWER APPLICATION

1000VDC ISOLATION 1000VDC ISOLATION 1000VDC ISOLATION


5V

B0505LS-1WR B0505LM-1W B0505S-1W

B0505LD-1W B0505D-1W

B0505(X)T-1W

SIP MINI SIP

MICRO SIP DIP

MICRO DIP SMD

IB0505LS-W75 IB0505LD-W75 IB0505T-W75

SIP DIP

SMD

WRB0505CKS-1W WRB0505N-2W WRB0505ZP-3W WRB0505ZP-6W WRB0505D-10W

SIP DIP16DIP24DIP24DIP2*1

12V

B1205LS-1WR B1205LM-1W B1205S-1W

B1205LD-1W B1205D-1W

B1205(X)T-1W

SIP MINI SIP

MICRO SIP DIP

MICRO DIP SMD

IB1205LS-W75 IB1205LD-W75 IB1205T-W75

SIP DIP

SMD



24V

B2405LS-1WR B2405LM-1W B2405S-1W

B2405LD-1W B2405D-1W

B2405(X)T-1W

SIP MINI SIP

MICRO SIP DIP

MICRO DIP SMD

IB2405LS-W75 IB2405LD-W75 IB2405T-W75

SIP DIP

SMD



NOTES: 1. Bxxxxx-1W is fixed input, isolated, unregulated single output series, 2. IBxxxxx-W75 is fixed input, isolated, regulated single out put series. 3. WRBxxxxx-xW is wide input, isolated, regulated single output series. 4. For higher isolation applications, such as 3000VDC and 6000VDC, please select fixed input F and H series, regulated IF, IH series or wide input WRF series.

8751

8051

DC

DC

1 40 2 39 3 38 4 37 5 36 6 35 7 34 8 33 9 32 10 31 11 30 12 29 13 28 14 27 15 26 16 25 17 24 18 23 19 22 20 21

MCS-51


Notes: a. The application above is made while assuming operation voltage of the monolithic processor is +5V. For +9V,

+12V or +15V applications please choose Mornsun’s corresponding products. b. When some applications consume higher power (3W or above), it is better to use wide input series products,

for instance WR, or VR series. c. To further reduce the power loss, please use low LOSS components. d. For long term reliability concern, please do not use the modules at less than 10% rated power. Please select

lower power modules for low power application, as for example 0.25W modules. Or to meet the 10% minimum load requirement, you may add dummy load at the output side of modules.

e. For special requirements please contact us: Hotline Service number: +86-20-38601850 Ext.820 or 821 or 822 Website: http://www.mornsun.cn E-mail: [email protected]


VI. MEDICAL MONITOR SPECIAL APPLICATION CIRCUIT 1. ECG MONITOR APPLICATION

DC-DC CONVERTR

+15V Vin +Vo1 +15V -Vo1 0V1 -15V +Vo2 +15V 0V2 GND -Vo2 -15V IR+ 3652 Uo IR- To monitor or following circuit

FEATURE a. The schematic above is an application of 3652 used in ECG monitor system. The circuit uses a connection

method with balanced input. It has a high common mode and differential input impedance, which reduces common mode noise caused by imbalanced cable impedance, which is very common in monitor equipments.

b. Due to DC-DC module G1515S-1W, 3652’s ground wire that contacted with patients is completely isolated from that of input power source. In addition, 3652 allows continuous 2000VDC isolation voltage between input and output side, and 5000V nonperiodic pulse voltage, ensures patients’ safety. In this circuit, Mornsun’s 6000VDC isolation products is highly recommended. (its isolation capacitance is very low, less than 10pF)


SYSTEM POWER SUPPLY

RECOMMENDED APPLICATION（6000VDC） PART NUMBER PACKAGE

5V G0515S-1W G0515D-1W

SIP DIP

12V G1215S-1W G1215D-1W

SIP DIP

24 G2415S-1W G2415D-1W

SIP DIP

Notes: a. The application above is made while assuming operation voltage of isolation amplifier is +/-15V. For ±5V,

Human

DC DC

DC

DC


±9V or ±12V applications please choose Mornsun’s corresponding products. b. The capacitor C2 and C3 which attached to output of DC-DC modules could not exceed 1uF, otherwise the

modules may have problem while starting. c. To further reduce the power loss, please use low LOSS components. d. For special requirements please contact us:


application solution of dc/dc converter … application solution.pdf · application solution of...

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