用于直流电机驱动的开关模式控制器
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 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 -55°C to +125°C, while the UC2637 and are characterized for -25°C to +85°C and 0°C to +70°C, respectively.
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
UC3637 TI 德州仪器 | 当前型号 | 当前型号 |
UC2637 德州仪器 | 功能相似 | UC3637和UC2637的区别 |
UC1637 德州仪器 | 功能相似 | UC3637和UC1637的区别 |