SG2731N (#44088) |
Product Status
Obsolete |
Overview
| The SG2731 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 circuit contains a triangle waveform oscillator, a wideband operational amplifier for error voltage generation, a summing/scaling network for level-shifting the triangle waveform, externally programmable PWM comparators and dual ±100mA, ±22V totem pole drivers with commutation diodes for full bridge output. A SHUTDOWN terminal forces the drivers into a floating high-impedance state when driven LOW. Supply voltage to the control circuitry and to the output drivers may be from either dual positive and negative supplies, or single-ended. Key Features • ±3.5V to ±15V control supply • ±2.5V to ±22V driver supply • Dual 100mA source/sink output drivers • 5KHz to 350KHz oscillator range • High slew rate error amplifier • Adjustable deadband operation • Digital SHUTDOWN input |
ROHS| Package Carrier: | NULL |
Resources
| Datasheets | |
|---|---|
 SG1731 Datasheet |
| Reliability | |
|---|---|
| Quality & Reliability Report - Aliso Viejo, CA, USA - Garden Grove, CA, USA - San Jose, CA, USA |
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