UC3525B Datasheet Regulating Pulse Width Modulators

Manufacturer: Unitrode

Overview: UC3527B Not Recommended For New Designs Regulating Pulse Width Modulators application INFO available UC1525B UC1527B UC2525B UC2527B UC3525B.

Datasheet Details

Part number	UC3525B
Manufacturer	Unitrode
File Size	2.09 MB
Description	Regulating Pulse Width Modulators
Datasheet	UC3525B-Unitrode.pdf

General Description

The UC1525B/1527B series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies.

The on-chip +5.1V buried zener reference is trimmed to ±0.75% and the input common-mode range of the error amplifier includes the reference voltage, eliminating external resistors.

A sync input to the oscillator allows multiple units to be slaved or a single unit to be synchronized to an external system clock.

Key Features

8 to 35V Operation.
5.1V Buried Zener Reference Trimmed to ±0.75%.
100Hz to 500kHz Oscillator Range.
Separate Oscillator Sync Terminal.
Adjustable Deadtime Control.
Internal Soft-Start.
Pulse-by-Pulse Shutdown.
Input Undervoltage Lockout with Hysteresis.
Latching PWM to Prevent Multiple Pulses.
Dual Source/Sink Output Drivers.
Low Cross Conduction Output Stage.
Tighter Reference Specifica.

UC3525B Distributor

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