FA3630V 데이터 시트보기 (PDF) - Collmer Semiconductor

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FA3630V

CMOS IC For Switching Power Supply Control

Collmer Semiconductor 

FFAA36330V630V

s Description

FA3630V is a DC-DC converter controller.

This IC can directly drive a Nch/Pch-MOSFET.

This IC is suitable to reduce converter size because it has

many functions in a small package TSSOP.

s Features

• Low input voltage: 2.5V to 6.5V

• 2-channels PWM control: Rail-to-rail output

Output impedance of output stage = 3.5Ω (typ.)

Nch-MOSFET driving (Ch1)

Nch/Pch-MOSFET driving (Ch2)(selected by SEL pin)

• Low power consumption: 0.7mA (typ.)

• ON/OFFcontrol: Standby current= 0.1µA (typ.)

• ±2% high accuracy reference voltage

• Adjustable soft start time and maximum duty cycle

• Adjustable built-in timer latch for short circuit protection

• Wide range of operation frequency: 100kHz to 1MHz

• Package: TSSOP-16 (Thin and small)

s Applications

• Power supply for general equipment

CMOS IC

For Switching Power Supply Control

s Dimensions, mm

TSSOP-16

16

9

1

8

5.2

0.2±0.05

0.65

0.5±0.08

s Block diagram

Pin Pin

No. symbol

Description

1 ON/OFF ON/OFF function

2 IN2+

Ch. 2 non-inverting input to error

amplifier

3 IN2–

Ch.2 inverting input to error

amplifier

4 FB2

Ch. 2 output of error amplifier

5 SEL

Selection of type of MOSFET

drived

6 GND

Ground

7 CS2

Soft start for Ch. 2

8 OUT2

Ch. 2 output (for Nch or Pch-

MOSFET)

9 OUT1

Ch.1 outout (for Nch-MOSFET)

10 CS1

Soft start for Ch.1

11 VCC

Power supply

12 VREG Regulated voltage output

13 FB1

Ch.1 output of error amplifier

14 IN1–

Ch.1 inverting input to error

amplifier

15 CP

Timing capacitor for timer latch

delay

16 CT

Oscillator timing capacitor

1

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