AP2002SA datasheet(3/7 Pages) ANACHIP

Part #	AP2002SA

Description	Synchronous PWM Controller

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Manufacturer	ANACHIP [Anachip Corp]

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AP2002

Synchronous PWM Controller

Anachip Corp.

www.anachip.com.tw

Rev. 0.2 Apr 14, 2004

3/7

Electrical Characteristics

Unless specified: VCC = 4.75V to 12.6V; GND = PGND = 0V; FB = VO; VBSTL = 12V; VBSTH-PHASE = 12V; TJ = 25

oC

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

Power Supply

VCC

Supply Voltage

VCC

4.2

12.6

V

ICC

Supply Current

6

10

mA

∆VLINE

Line Regulation

VO = 2.5V

0.5

%

Error Amplifier

AOL

Gain (AOL)

50

dB

IB

Input Bias

5

8

uA

Oscillator

FOSC

Oscillator Frequency

180

200

220

KHz

DCMAX

Oscillator Max Duty Cycle

90

95

%

MOSFET Drivers

IDRVH

DRVH Source/Sink

VBSTH – VDRVH =4.5V

VDRVH – VPHASE = 2V

1

A

IDRVL

DRVL Source/Sink

VBSTH – VDRVL = 4.5V

VDRVL – VPGND = 2V

1

A

Protection

DTH

OVP Threshold

20

%

IOVP

OVP Source Current

VOVP = 3V

10

mA

DPG

Power Good Threshold

88

112

%

TDEAD

Dead Time

45

100

nS

IOCSET

Over Current Set Isink

2.0V < VOCSET < 12V

180

200

220

uA

Reference

Reference Voltage

0.792

0.8

0.808

V

VREF

Accuracy

0

oC to 70oC

-1

+ 1

%

Soft Start

ISSC

Charge Current

VSS = 1.5V

8.0

10

12

uA

ISSD

Discharge Current

VSS = 1.5V

1.3

2

2.7

uA

Under voltage lockout (UVLO)

VUT

Upper threshold voltage

(VCC)

4.2

4.4

V

VLWT

Lower threshold voltage

(VCC)

4.0

V

VHT

Hysteresis (VCC)

IO(REF) = 0.1mA

TA = 25ºC

200

mV

Note 1. Specification refers to Typical Application Circuit.

Note 2. This device is ESD sensitive. Use of standard ESD handling precautions is required.

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