AP450

2 Channel Linear Controller with Enable Function

Anachip Corp.

www.anachip.com.tw

Rev. 1.1 Sep 7, 2004

2/6

Block Diagram

Bandgap

Reference

Amp

+

_

Current

Limit

Buffer

LPF

Amp

+

_

Buffer

LPF

EN1/2

FB2

FB1

GND

OUT1

OUT2

Current

Limit

UVLO

Vcc

1.25V/0.8V

2.5V

V

REF

Absolute Maximum Ratings

Symbol

Parameter

Rating

Unit

Supply voltage

22

V

Amplifier input voltage

20

V

CH1 / CH1Linear driver voltage to ground

-0.3≦V≦20

V

Operating temperature range

-20 to +85

Storage temperature range

-65 to +150

Lead temperature 1.6 mm(1/16 inch) from case for 10 seconds

260

Recommended Operating Conditions

Symbol

Parameter

Min.

Max.

Unit

Supply voltage

3.6

20

V

Amplifier input voltage

1.05

1.45

V

CH1 / CH2 Linear driver voltage to ground

-

Vcc-1.5

V

Current into feedback terminal

-

45

µA

Feedback resistor

100

-

kΩ

Operating free-air temperature

-20

85

ºC