M62501FP Просмотр технического описания (PDF) - Renesas Electronics

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M62501FP

PWM IC for the Synchronized Deflection System Control

Renesas Electronics 

M62501P/FP

PWM IC for the Synchronized Deflection System Control

REJ03D0857-0200

Rev.2.00

Jun 14, 2006

General Description

The M62501P/FP is a controller for a deflection system of CRT display monitors. It performs a stable PWM control

over a wide fluctuation of external signals, thanks to the built-in trigger mode oscillator. The IC is suitable for an

application to a high voltage drive of monitors because of its following circuits and functions;

• low voltage malfunction protection circuit,

• over or under voltage protection circuit for a control line,

• soft-start function.

It is also applicable to a horizontal output correction.

Features

• PWM output synchronized with external signals

• Wide pulse width modulation control frequency

15 kHz to 150 kHz

• Soft start function

• The under voltage output malfunction protection circuit

start VCC > 9 V

stop VCC < 6 V

• Built-in over voltage protection (OVP) and under voltage protection (UVP) control

Application

CRT display monitor

Block Diagram

GND

16

VREF

DTC FB IN−

IN+

BO

BI

15

14

13

12

11

10

9

VCC

VREF

Amp

Amp

−

Comp −

+

UVLO

1

2

3

PWM OUT

VCC

TIN

GEN

4

COSC

Latch

AGC

5

CAGC

VREF

Comp

Comp

6

POUT

0.5 V

7

OVP

8

UVP

Rev.2.00 Jun 14, 2006 page 1 of 10

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