EOSMEM Confidential 1EOSMEM Confidential

QC3.0 & NT6008 Introduction

2015/10/06

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QC3.0 defines continuous mode as D+ = 0.6, D- = 3.3V

Output voltage increases/decreases 200mV upon each D+/D- toggle

Output voltage range: 3.6V ~ 20V (12V for class A)

QC3.0 vs. QC2.0

5V

12V 9V

20V

(Undenfined)Undefined

Undefined5V

App

le M

od

e

D+

D-

2V0.4V

2V

0.4V

12V 9V

20V

(Undenfined)

Continuous

Mode

5V

App

le M

od

e

D+

D-

2V0.4V

2V

0.4V

QC2.0 QC3.0

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D+ > 2.0V pulse increases output voltage by 200mV

D- < 2.0V pulse decreases output voltage by 200mV

Pulses < 150us will be skipped

Once entering QC3.0, stay at QC3.0 unless D+ or D - < 0.4V

Output Voltage Increment/Decrement

DP

DM

VOUT

2.0V

200mV

tH

150us

tL

DP

DM

VOUT

2.0V

200mV

tH

150us

tL

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OUT pin sinks/sources current to adjust output voltage of HVDCP

according to QC2.0/3.0 protocol

MSOP-10L easy to co-layout with other QC2.0 parts

Application Circuit

GND

VCC SEL

REG

1

2

5

7

4

IREF

DM

8

TSOT23-8

DP 3 6

OUT

GND

SEL

DM

IREF

1

OUT

REG

NC

NC

VCC

DP

2

3

4

10

9

8

7

6

MSOP-10L

5

HVDCP

3.6V~12V VBUS

NT6008

FB

GND

DP

DM

VCC

OUT

IREF

SEL

REG

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3.3V ~ 13.5V Single Supply Operation

Smart USB Charger Identification Circuit

– Compliant with QC2.0/3.0 Class A

– Selectable Apple iPad 2.4A/2.1A Applications

– Support Samsung Galaxy Note 2.0A Applications

– Support BC1.2 & YD/T 1591 Battery Charging Specifications

8kV High ESD

Smooth Voltage Transition

OVP Protection

Discharge Function

-40OC ~ +125OC Operating Ambient Temperature

TSOT23-8L or MSOP-10L Package

RoHS Compliant and Halogen-Free

Features

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Enter mode 2 if data line detection, primary detection

– VDP> 2.875V for 2ms

– VDM < 2.0V (1.5V if Apple 2.1A selected) for 10ms

– VDP < 2.0V for 10ms

Operation Mode I – Apple Mode

2.75V

2.75V30K

30K

DM

DP 2.75V

2.05V30K

30K

DM

DP

SEL = Low SEL = High

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Enter mode 3 if 0.4 < VDP < 1.05V for one second

Otherwise enters mode 1 when the 3-second counter expires

Operation Mode II – Samsung Mode

1.2V100K

20R

DM

DP

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Enters mode 4 (QC2.0 mode) if 0.4V < VDP < 1.05V for 0.2s.

Otherwise enters mode 1 when the 3-second counter expires

Operation Mode III – BC1.2 Mode

20K

20R

DM

DP

400K

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Leaves mode 4 and enter mode 1 if VDP < 0.4V 2ms or VCC

overvoltage protection is triggered

QC2.0 is confirmed if VDM < 0.4V for 2ms

NT6008 adjusts output voltage according to QC2.0/3.0 protocol

Operation Mode IV – QC Mode

20K

DM

DP

400K

IOUT = 0mA

IOUT = 7xIREF IOUT = 4xIREF

Undefined

(keep last

state)

Continuous

Mode

IOUT = 0mA

App

le M

od

e

D+

D-

2V0.4V

2V

0.4V

QC3.0

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IREF = VREF / RREF = 1V/RREF

DVBUS = DK x IREF * RREF = DK (V)

K = 0 for 5V; = 4 for 9V; K = 7 for 12V

0.1xIREF, 50us per step to ensure smooth voltage transition

When voltage decreasing, discharges with 10mA/500ms

Output Voltage Adjustment

VBUS

D+

D-

GND

HVDCP

3.6V~12V VBUS

NT6008

FB

GND

DP

DM

VCC

OUT

IREF

SEL

REGRREF

RFB1

IOUT

50us

0.1x IREF

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VIN = 20V to ensure 12V output

EVB BOM Schematic

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Smooth voltage transition w/o

overshoot

NT6008 vs. QC2.0 Supporting Phone

D+

D-

VOUT

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VOUT

D+

D-

QC3.0 Identification Single Increment

Group Increment Group Decrement

NT6008 vs. QC3.0 Supporting Phone