UC3637M 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.

	UC3637M
Operating Supply (Min) (V)	5
Operating Supply (Max) (V)	36
Operating Supply Current (mA)	8.5
Peak Output Current (A)	0.4
Pin/Package	18CDIP
Rating	Military

UC3637M 特性

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

UC3637M 芯片订购指南

器件	状态	温度 (oC)	价格（美元）	封装 \| 引脚	封装数量 \| 封装载体	丝印标记
UC3637J	ACTIVE	0 to 70	6.73 \| 100u	CDIP (J) \| 18	1 \| TUBE

UC3637M 应用手册

标题	类型	大小	日期
U-120 A Simplified Approach to DC Motor Modeling for Dynamic Stability Analysis	PDF	106	1999年 9月 5日
U-112 A High Precision PWM Transconductance Amplifier for Microstepping	PDF	211	1999年 9月 5日
U-102 UC1637/2637/3637 Switched Mode Controller for DC Motor Drive	PDF	350	1999年 9月 5日
DN-53A Design Considerations for Synchronizing Multiple UC3637 PWMs	PDF	168	1999年 9月 5日

UC3637M 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
UC3637J	TBD	A42	N/A for Pkg Type	UC3637J	UC3637J