The UC3637N is a switched mode DC motor controller. The pulse width modulator circuit
The UC3637N is a switched mode DC motor controller. The pulse width modulator circuit
Product overview
The UC3637N is a switched mode DC motor controller. The pulse width modulator circuit intended to be used for a variety of PWM motor drive and amplifier applications requiring unidirectional or bidirectional drive circuits. When used to replace conventional controllers, 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 bidirectional pulse train outputs in proportion to the magnitude and polarity of the error signal. This monolithic device contains a sawtooth oscillator,
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The UC3637N is a switched mode DC motor controller. The pulse width modulator circuit
Product overview
The UC3637N is a switched mode DC motor controller. The pulse width modulator circuit intended to be used for a variety of PWM motor drive and amplifier applications requiring unidirectional or bidirectional drive circuits. When used to replace conventional controllers, 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 bidirectional pulse train outputs in proportion to the magnitude and polarity of the error signal. This monolithic device contains a sawtooth oscillator,
Product overview
The UC3637N is a switched mode DC motor controller. The pulse width modulator circuit intended to be used for a variety of PWM motor drive and amplifier applications requiring unidirectional or bidirectional drive circuits. When used to replace conventional controllers, 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 bidirectional pulse train outputs in proportion to the magnitude and polarity of the error signal. This monolithic device contains a sawtooth oscillator, an error amplifier, and two PWM comparators with ± 100 mA output stages as standard features. Protection circuitry includes undervoltage blocking, pulse-by-pulse current limiting, and a shutdown port with a 2.5V temperature compensated threshold.
Pulse-by-pulse current limiting
Low voltage lock
2.5V threshold temperature compensated shutdown input
Uncompromised PWM comparators for design flexibility
Dual 100 mA source / sink output drivers
± 5% initial oscillator accuracy
± 10% overtemperature
Applications
Motor Control