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Part Number: SG2731
Description: The SG1731 is a pulse width modulator circuit designed specifically for DC motor control. It provides ...
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SG2731
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General Description
SG2731 General Description
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. <BR><BR>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
SG2731 Maximum Ratings
Output Driver Diode Current (continuous) ..................... 200mA
Output Driver Diode Current (peak, 500ns) ................... 400mA
Operating Junction Temperature
Hermetic (J - Package) ................................................... 150°C
Plastic (N - Package) ...................................................... 150°C
Storage Temperature Range ........................ -65°.C to 150°C
Lead Temperature (Soldering, 10 Seconds) ................... 300°C
Supply Voltage (±VS) ...................................................... ±18V
Analog Inputs .................................................................... ±VS
Digital Inputs (SHUTDOWN) ..................... -VS-0.3V to -VS+18V
Output Driver Supply Voltage (±VO) ................................ ±25V
Source/Sink Output Current (continuous) ...................... 200mA
Source/Sink Output Current (peak, 500ns) .400mA
Note 1. Values beyond which damage may occur.
SG2731 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
• ±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
SG2731
PDF/DataSheet Download
- Datasheet: SG2731
- File Size: 144062 KB
- Manufacturer: MICROSEMI [Microsemi Corporation]
- Click here to Download
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