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UTC494 Datasheet Voltage Mode Pwm Control Circuits

Manufacturer: YOUWANG

Overview: UTC494 LINEAR INTEGRATED CIRCUIT VOLTAGE MODE PWM CONTROL CIRCUITS.

Datasheet Details

Part number UTC494
Manufacturer YOUWANG
File Size 110.44 KB
Description VOLTAGE MODE PWM CONTROL CIRCUITS
Datasheet UTC494-YOUWANG.pdf

General Description

The UTC494 incorporate on a single monolithic chip all the functions required in the construction of a pulse-width modulation control circuit.Designed primarily for power supply control, the device offers the systems engineer the flexibility to tailor the power supply control circuitry to its application.

The UTC494 contains an error amplifier,current-limiting amplifier, an on-chip adjustable oscillator, a dead time control com parator,pulse-steering control flip-flop,a 5volt ,1% precision supply regulator,and output control circuits.

The error amplifier exhibits a common-mode Voltage range from -0.3V to VCC-2V.The current-limit amplifier exhibits a common-mode Voltage range from -0.3V to 3V with an offset Voltage of approximately 80 mV in series with the inverting input to ease circuit design requirements.

Key Features

  • Complete PWM Power Control Circuitry.
  • Uncommitted Outputs for 200 mA Sink or Source Current.
  • Output Control Selects single-Ended or Push- Pull Operation.
  • Internal Circuitry Prohibits Double control Over Total Range.
  • Circuit architecture Allows easy Synchron - Ization.
  • Undervoltage Lockout.

UTC494 Distributor