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UC1637 - DC Motor Controller

General Description

The UC1637 is a pulse width modulator circuit intended to be used for a variety of PWM motor drive and amplifier applications requiring either uni-directional or bidirectional drive circuits.

Key Features

  • Single or Dual Supply Operation.
  • ±2.5V to ±20V Input Supply Range.
  • ±5% Initial Oscillator Accuracy; ± 10% Over Temperature.
  • Pulse-by-Pulse Current Limiting.
  • Under-Voltage Lockout.
  • Shutdown Input with Temperature Compensated 2.5V Threshold.
  • Uncommitted PWM Comparators for Design Flexibility.
  • Dual 100mA, Source/Sink Output Drivers BLOCK.

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Datasheet Details

Part number UC1637
Manufacturer Unitrode
File Size 1.38 MB
Description DC Motor Controller
Datasheet download datasheet UC1637 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Switched Mode Controller for DC Motor Drive UC1637 UC2637 UC3637 FEATURES • Single or Dual Supply Operation • ±2.5V to ±20V Input Supply Range • ±5% Initial Oscillator Accuracy; ± 10% Over Temperature • Pulse-by-Pulse Current Limiting • Under-Voltage Lockout • Shutdown Input with Temperature Compensated 2.5V Threshold • Uncommitted PWM Comparators for Design Flexibility • Dual 100mA, Source/Sink Output Drivers BLOCK DIAGRAM DESCRIPTION The UC1637 is a pulse width modulator circuit intended to be used for a variety of PWM motor drive and amplifier applications requiring either uni-directional or bidirectional drive circuits. When used to replace conventional drivers, this circuit can increase efficiency and reduce component costs for many applications.