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SG3527A Datasheet Regulating Pulse Width Modulator

Manufacturer: Microsemi (now Microchip Technology)

Overview: SG1525A/SG2525A/SG3525A SG1527A/SG2527A/SG3527A Regulating Pulse Width.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The SG1525A/1527A series of pulse width modulator integrated circuits are designed to offer improved performance and lower external parts count when used to implement all types of switching power supplies.

The on-chip +5.1 V reference is trimmed to ±1% initial accuracy and the input mon-mode range of the error amplifier includes the reference voltage, eliminating external potentiometers and divider resistors.

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

Key Features

  • NOR logic, giving a LOW output for an OFF state. The SG1527A utilizes OR logic, which results in a HIGH output level when OFF. Block Diagram Features.
  • 8V to 35V Operation.
  • 5.1V Reference Trimmed to 1%.
  • 100Hz to 500kHz Oscillator Range.
  • Separate Oscillator Sync Terminal.
  • Adjustable Deadtime Control.
  • Internal Soft-start.
  • Input Undervoltage Lockout.
  • Latching P. W. M. to Prevent Multiple Pulses.
  • Dual Source/Sink Output Drivers High Reliability Features Fo.

Similar Datasheet

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More Datasheets from Microsemi (now Microchip Technology)

Part Number Description
SG3524 Regulating Pulse Width Modulator
SG3524B Regulatating Pulse Width Modulator
SG3525A Regulating Pulse Width Modulator
SG3526 REGULATING PULSE WIDTH MODULATOR
SG3526B REGULATING PULSE WIDTH MODULATOR
SG3543 Power Supply Output Supervisory Circuit
SG3626 Dual High Speed Driver
SG3644 DUAL HIGH SPEED DRIVER
SG3844 Current Mode PWM Controller
SG3845 Current Mode PWM Controller

SG3527A Distributor