UC3637是TI公司的一款运动/电机控制产品，UC3637是用于直流电机驱动的开关模式控制器，本页介绍了UC3637的产品说明、应用、特性等，并给出了与UC3637相关的TI元器件型号供参考。
UC3637 - 用于直流电机驱动的开关模式控制器 - 运动/电机控制 - 电源管理特殊功能 - TI公司（Texas Instruments，德州仪器）
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 UC3637 are characterized for -25°C to +85°C and 0°C to +70°C, respectively.
- 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
