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AZ494B Datasheet Pulse-width-modulation Controller

Manufacturer: BCD Semiconductor

Overview: Data Sheet PULSE-WIDTH-MODULATION CONTROL CIRCUITS General.

Datasheet Details

Part number AZ494B
Manufacturer BCD Semiconductor
File Size 197.33 KB
Description PULSE-WIDTH-MODULATION CONTROLLER
Datasheet AZ494B_BCDSemiconductor.pdf

General Description

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 reference voltage circuit, two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) parator, 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.

Key Features

  • Stable 4.95V for AZ494B or 5V for AZ494D Reference 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 On-Chip Oscillator with Master or Slave Operation.

AZ494B Distributor