SG2731N

The SG2731N is a pulse width modulator circuit designed specifically for DC motor control.  It provides a bi-directional pulse train output in response to the magnitude and polarity of an analog error signal input.  The device is useful as the control element in motor-driven servo systems for precision positioning and speed control, as well as in audio modulators and amplifiers using carrier frequencies to 350 KHz.

The features of SG2731N can be summarized as:(1)±3.5V to ±15V control supply; (2)±2.5V to ±22V driver supply; (3)Dual 100mA source/sink output drivers; (4)5KHz to 350KHz oscillator range; (5)High slew rate error amplifier; (6)Adjustable deadband operation; (7)Digital SHUTDOWN input.

The absolute maximum ratings of the SG2731N can be summarized as:(1)supply voltage:±18V;(2)analog inputs:±VS;(3)digital inputs:-VS-0.3V to -Vs+18V;(4)output driver supply voltage:±25V;(5)source/sink output current(continuous):200mA;(6)source/sink output current(peak, 500ns):400mA;(7)output driver diode current(continuous):200mA;(8)output driver diode current(peak, 500ns):400mA;(9)operating junction temperature:150;(10)storage temperature range:-65 to +150;(11)lead temperature(soldering, 10seconds):300.

If you want to know more information such as the electrical characteristics about the SG2731NG, please download the datasheet in www.seekic.com or www.chinaicmart.com .