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GL494 - PWM CONTROL CIRCUIT

Description

The GL494 incorporates on a single monolithic chip all the functions required in the construction of a pulse-widthmodulation control circuit.

Features

  • Complete PWM Power Control Circuitry.
  • Uncommitted Outputs for 200mA Sink or Source.
  • Output Control Selects Single-Ended or Push-Pull Operation.
  • Internal Circuitry Prohibits Double Pulse at Either Output.
  • Internal Regulator Provides a Stable 5V Reference Supply.
  • Variable Dead-Time Provides Control Over Total Range Function Table Output Control Grounded At Vref Output Function Single-ended or Parallel Output Normal Push-Pull Operation Block.

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Datasheet Details

Part number GL494
Manufacturer SK Hynix
File Size 94.03 KB
Description PWM CONTROL CIRCUIT
Datasheet download datasheet GL494 Datasheet

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    GL494 GL494 PWM CONTROL CIRCUIT Description The GL494 incorporates on a single monolithic chip all the functions required in the construction of a pulse-widthmodulation control circuit. Designed primarily for power supply control, the GL494 contains an on-chip 5-volt regulator, two error amplifiers, adjustable oscillator, deadtime control comparator, pulse-steering flip-flop, and output-control circuitry. The uncommitted output transistors pro-vide either common-emitter or emitterfollower output capability. Push-pull or single-ended output operation may be selected through the outputcontrol function. The ar-chitecture of the GL494 prohibits the possibility of either output being pulsed twice during push-pull operation. Pin Configuration NONINV INPUT INV.
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