AP3768

Document number: DS37715 Rev. 2 - 2

4 of 9

www.diodes.com

July 2017

© Diodes Incorporated

AP3768

Recommended Operating Conditions

Symbol

Parameter

Min

Max

Unit

VCC

Power Supply Voltage

12

30

V

TA

Ambient Temperature

-40

+85

°C

Electrical Characteristics (VCC=15V, TA=-40 to +85°C, unless otherwise specified.)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

UVLO SECTION

VTH (ST)

Start-up Threshold

–

17

18.5

21

V

VOPR(min)

Minimal Operating Voltage

–

8.2

9.2

10.2

V

REFERENCE VOLTAGE

VBIAS

BIAS Pin Voltage

RBIAS=200k, After Turn On

1.0

1.1

1.2

V

STANDBY CURRENT SECTION

IST

Start-up Current

VCC=VTH (ST)-0.5V, RBIAS=200k,

Before start-up

–

–

0.6

A

ICC(OPR)

Operating Current

RBIAS=200k

–

390

480

A

DRIVE OUTPUT SECTION

IOUT

OUT Maximum Current

Source

RBIAS=200k

28

36

44

mA

CURRENT SENSE SECTION

VCS

Current Sense Threshold

–

490

513

535

mV

VCS(PRE)

Pre-Current Sense

–

390

413



435



mV

–

Leading Edge Blanking

–

–

500



–

ns

FEEDBACK INPUT SECTION

IFB

Feedback Pin Input Leakage Current

VFB=4V

1.8

2.4

3.0

A

VFB

Feedback Threshold

–

3.97

4.03



4.09



V

VFB(EN)

Enable Turn-on Voltage

–

-2.0

-1.7

-1.4

V

OUTPUT VOLTAGE COMPENSATION SECTION

VCPR

CPR Voltage

DONS (tONS/t): from 55% to 0.02%

1.5

–

3.5

V

ICPR

CPR Sink Current

–

–

–

200

A

PROTECTION SECTION

VFB(OVP)

Over Voltage Protection

–

7

8

9

V