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AZ494D - PULSE-WIDTH-MODULATION CONTROLLER

Download the AZ494D datasheet PDF. This datasheet also covers the AZ494B variant, as both devices belong to the same pulse-width-modulation controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The AZ494B/D is a voltage mode pulse width modulation switching regulator control circuit designed primarily for power supply 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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AZ494B_BCDSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number AZ494D
Manufacturer BCD Semiconductor
File Size 197.33 KB
Description PULSE-WIDTH-MODULATION CONTROLLER
Datasheet download datasheet AZ494D Datasheet

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Other Datasheets by BCD Semiconductor

Part Number Description
AZ494A PULSE-WIDTH-MODULATION CONTROLLER
AZ494B PULSE-WIDTH-MODULATION CONTROLLER
AZ494C PULSE-WIDTH-MODULATION CONTROLLER
AZ4052 Dual 4-channel Analog Multiplexer/Demultiplexer
AZ431 ADJUSTABLE PRECISION SHUNT REGULATORS

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Data Sheet PULSE-WIDTH-MODULATION CONTROL CIRCUITS 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) 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. AZ494B has 4.95V and AZ494D has 5V reference voltage respectively. The precision of voltage reference (VREF) is improved up to ± 1.5% through trimming and this provides a better output voltage regulation.