UC3842B Просмотр технического описания (PDF) - Unisonic Technologies

Номер в каталоге

Компоненты Описание

производитель

UC3842B

HIGH PERFORMANCE CURRENT MODE CONTROLLERS

Unisonic Technologies 

UC3842B/3843B

„ PIN CONFIGURATION

COMP 1

VFB 2

CS 3

RTCT 4

LINEAR INTEGRATED CIRCUIT

8 VREF

7 VCC

6 OUTPUT

5 GND

„ PIN DESCRIPTIONS

PIN NO. PIN NAME I/O

1

COMP

O

2

VFB

I

3

CS

I

4

RTCT

I

5

GND

6

OUTPUT

O

7

VCC

8

VREF

O

DESCRIPTION

Error amp output to provide loop compensation maintaing VFB at 2.5V

Error amp inverting input, The non-inverting input of error amp is 2.5V band

gap reference

Current sense input to PWM control gate drive of output

To set oscillator frequency and maximum output duty cycle

Power ground

To direct drive power MOSFET

Power supply

5V regulated output provides charging current for CT through RT

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

2 of 11

QW-R103-012.D

Share Link: