Switched Mode Controller For DC Motor DriveThe 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 bi-directional 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.
This monolithic device contains a sawtooth Oscillator error Amplifier and two PWM Comparators with 100mA output stages as standard features. Protection circuitry includes under-voltage lockout, pulse-by-pulse current limiting, and a shutdown port with a 2.5V temperature compensated threshold. The UC1637 is characterized for operation over the full military temperature range of -55C to +125C, while the UC2637 and UC3637 are characterized for -25C to +85C and 0C to +70C, respectively. By Texas Instruments |
Part | Manufacturer | Description | Datasheet | Samples | |
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UC3637J | Texas Instruments | Switched Mode Controller for DC Motor Drive 18-CDIP 0 to 70 |
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UC3637M Pb-Free | UC3637M Cross Reference | UC3637M Schematic | UC3637M Distributor |
UC3637M Application Notes | UC3637M RoHS | UC3637M Circuits | UC3637M footprint |