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UC1637 Datasheet

Part NameUC1637 Texas-Instruments
Texas Instruments Texas-Instruments
DescriptionSwitched Mode Controller for DC Motor Drive
UC3637 image

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. All necessary circuitry is included to generate an analog error signal and modulate two bi-directional pulse train outputs in proportion to the error signal magnitude and polarity.

• 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


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