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AZ494A Datasheet (PDF) - BCD Semiconductor Manufacturing Limited

AZ494A Datasheet PDF - BCD Semiconductor Manufacturing Limited
Part # AZ494A
Download  AZ494A Download

File Size   52.02 Kbytes
Page   2 Pages
Manufacturer  BCDSEMI [BCD Semiconductor Manufacturing Limited]
Direct Link  http://www.bcdsemi.com
Logo BCDSEMI - BCD Semiconductor Manufacturing Limited
Description PULSE-WIDTH-MODULATION CONTROL CIRCUITS

AZ494A Datasheet (PDF)

Go To PDF Page Download Datasheet
AZ494A Datasheet PDF - BCD Semiconductor Manufacturing Limited

Part # AZ494A
Download  AZ494A Click to download

File Size   52.02 Kbytes
Page   2 Pages
Manufacturer  BCDSEMI [BCD Semiconductor Manufacturing Limited]
Direct Link  http://www.bcdsemi.com
Logo BCDSEMI - BCD Semiconductor Manufacturing Limited
Description PULSE-WIDTH-MODULATION CONTROL CIRCUITS

AZ494A Datasheet (HTML) - BCD Semiconductor Manufacturing Limited

AZ494A Datasheet HTML 1Page - BCD Semiconductor Manufacturing Limited AZ494A Datasheet HTML 2Page - BCD Semiconductor Manufacturing Limited

AZ494A Product details

General Description

The AZ494A/C is a voltage mode pulse width modulation switching regulator control circuit designed primarily for power supply control.

The AZ494A/C 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 precision of voltage reference (VREF) is improved up to ±1% through trimming and this provides a better output voltage regulation. The AZ494A/C provides for push pull or single-ended output operation, which can be selected through the output control.

The difference between AZ494A and AZ494C is that they have 4.95V and 5V reference voltage respectively.

The AZ494A/C is available in standard packages of DIP-16 and SOIC-16.



Features

· Stable 4.95V/5V Reference Voltage Trimmed to ±1.0% 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

· On-Chip Oscillator With Master or Slave Operation



Applications

· SMPS

· Back Light Inverter

· Charger



 




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