SG1731J (#44085) |
Product Status
In Production |
Overview
The SG1731 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.Features
|
| Package Carrier: | Tube |
| Electrical Rating | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Drive Current | IDR | 0.1 | mA | ||
| Input Voltage | Vin |
2.5 | 22 | VDC | |
| Switching Frequency (kHz) | fs | 3 | 350 | kHz |
| Environmental Rating | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TA | -55 | 125 | °C |
Resources
| Datasheets | |
|---|---|
 SG1731 Datasheet |
| Reliability | |
|---|---|
| Quality & Reliability Report - Aliso Viejo, CA, USA - Garden Grove, CA, USA - San Jose, CA, USA |
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