UC3638
FEATURES
- -
- -
- -
- - Single or Dual Supply Operation Accurate High Speed Oscillator Differential X5 Current Sense Amplifier Bidirectional Pulse-by-Pulse Current Limiting Programmable Oscillator Amplitude and PWM Deadband Dual 500m A Totem Pole Output Drivers Dual 60V, 50m A Open Collector Drivers Undervoltage Lockout
DESCRIPTION
The UC1638 family of integrated circuits are advanced pulse width modulators intended for a variety of PWM motor drive and amplifier applications requiring either uni-directional or bi-directional drive circuits. Similar in architecture to the UC1637, 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. Key features of the UC1638 include a programmable high speed triangle oscillator, a 5X differential current sensing amplifier, a high slew rate error amplifier, high speed PWM parators, and two 50m A open collector as well as two...
