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AZ494D

Part Number	AZ494D
Manufacturer	BCD Semiconductor
Description	PULSE-WIDTH-MODULATION CONTROLLER
Published	May 3, 2007
Detailed Description	Data Sheet PULSE-WIDTH-MODULATION CONTROL CIRCUITS General Description The AZ494B/D is a voltage mode pulse width modula...
Datasheet	AZ494D PDF File

Overview

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 th...

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