Datasheet > AZ494D

AZ494D

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
2页	52K
描述
PULSE-WIDTH-MODULATION CONTROL CIRCUITS

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中文翻译

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AZ494D 数据手册

Product Brief

PULSE-WIDTH-MODULATION CONTROL CIRCUITS

AZ494B/D

Description

Parametric Table

The AZ494B/D is a voltage mode pulse width modulation

switching regulator control circuit designed primarily for

power supply control. The AZ494B/D consists of a refer-

ence voltage circuit, two error amplifiers, an on-chip

adjustable oscillator, a dead-time control (DTC) compara-

tor, a pulse-steering control flip-flop, and an output con-

AZ494B

AZ494D

4.95

Reference Voltage (V)

Reference Voltage Tolerance

1.5%

Frequency Change with Temperature (Max)

Open Loop Voltage Gain (db)

trol circuit. The precision of voltage reference (V ) is

REF

improved up to ± 1.5% through trimming and this pro-

vides a better output voltage regulation. The AZ494B/D

provides for push-pull or single-ended output operation,

which can be selected through the output control.

Unity-Gain Bandwidth (KHz)

800

Output Saturation Voltage (Common Emitter)

(V)

1.1

Rise Time (ns)

Fall Time (ns)

100

Features

Supply Voltage (V)

7 to 36

DIP-16

SOIC-16

Stable 4.95V/5V Reference Voltage Trimmed to

±1.5% Accuracy

Uncommitted Output TR for 200mA Sink or Source

Current

Single-End or Push-Pull Operation Selected by Out-

put Control

Internal Circuitry Prohibits Double Pulse at Either

Output

Package

Benefits

Complete PWM Control Circuit with Variable Duty

Cycle

On-Chip Oscillator With Master or Slave Operation

Very competitive price

Applications

Additional Available Materials

Samples

Data Sheet

Reliability Report

ESD Report

Application Notes

Demo Board

SMPS

Back Light Inverter

Charger

Jun. 2005

BCD Semiconductor Manufacturing Limited

中文翻译

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