Datasheet > AZ494B_05

AZ494B_05

更新时间： 2024-10-26 04:07:35

品牌	Logo	应用领域
BCDSEMI		/
页数	文件大小	规格书
12页	168K
描述
PULSE-WIDTH-MODULATION CONTROL CIRCUITS

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

AZ494B_05 数据手册

Data Sheet

PULSE-WIDTH-MODULATION CONTROL CIRCUITS

AZ494B/D

General Description

Features

The AZ494B/D is a voltage mode pulse width modula-

tion switching regulator control circuit designed prima-

rily for power supply control.

Stable 4.95V for AZ494B or 5V for AZ494D Ref-

erence Voltage Trimmed to ±1.5% Accuracy

Uncommitted Output TR for 200mA Sink or

Source Current

Single-End or Push-Pull Operation Selected by

Output Control

Internal Circuitry Prohibits Double Pulse at Either

Output

Complete PWM Control Circuit with Variable

Duty Cycle

The AZ494B/D consists of a reference voltage circuit,

two error amplifiers, an on-chip adjustable oscillator, a

dead-time control (DTC) comparator, a pulse-steering

control flip-flop, and an output control circuit. The

AZ494B/D is capable for push-pull or single-ended

output operation, which can be selected through the

output control.

On-Chip Oscillator with Master or Slave Opera-

tion

AZ494B has 4.95V and AZ494D has 5V reference

voltage respectively. The precision of voltage reference

Applications

(V ) is improved up to ± 1.5% through trimming

REF

and this provides a better output voltage regulation.

SMPS

Back Light Inverter

Charger

The AZ494B/D is available in standard packages of

DIP-16 and SOIC-16.

DIP-16

SOIC-16

Figure 1. Package Types of AZ494B/D

BCD Semiconductor Manufacturing Limited

Jun. 2005 Rev. 1. 1

12 3 4 5 6 7...12

中文翻译

下载PDF

与AZ494B_05相关器件

型号	品牌	获取价格	描述	数据表
AZ494BM	BCDSEMI	获取价格	PULSE-WIDTH-MODULATION CONTROL CIRCUITS
AZ494BM	DIODES	获取价格	Switching Regulator/Controller, Voltage-mode, 0.2A, 300kHz Switching Freq-Max, PDSO16
AZ494BM-E1	BCDSEMI	获取价格	PULSE-WIDTH-MODULATION CONTROL CIRCUITS
AZ494BMTR	BCDSEMI	获取价格	PULSE-WIDTH-MODULATION CONTROL CIRCUITS
AZ494BMTR-E1	BCDSEMI	获取价格	PULSE-WIDTH-MODULATION CONTROL CIRCUITS
AZ494BP	BCDSEMI	获取价格	PULSE-WIDTH-MODULATION CONTROL CIRCUITS
AZ494BP-E1	BCDSEMI	获取价格	PULSE-WIDTH-MODULATION CONTROL CIRCUITS
AZ494BP-E1	DIODES	获取价格	Switching Regulator/Controller, Voltage-mode, 0.2A, 300kHz Switching Freq-Max, PDIP16
AZ494C	BCDSEMI	获取价格	PULSE-WIDTH-MODULATION CONTROL CIRCUITS
AZ494CM	BCDSEMI	获取价格	PULSE-WIDTH-MODULATION CONTROL CIRCUITS