Product Summary

The SG3731N is a pulse width modulator circuit designed specifically for DC motor control. It provides a bidirectional pulse train output in response to the magnitude and polarity of an analog error signal input. The SG3731N 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.

Parametrics

SG3731N absolute maximum ratings: (1)Supply Voltage (±VS): ±18V; (2)Analog Inputs: ±VS; (3)Digital Inputs (SHUTDOWN): -VS-0.3V to -VS+18V; (4)Output Driver Supply Voltage (±VO): ±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: Hermetic (J - Package), 150℃; Plastic (N - Package), 150℃; (10)Storage Temperature Range: -65 to 150℃; (11)Lead Temperature (Soldering, 10 Seconds): 300℃.

Features

SG3731N features: (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.

Diagrams

SG3731N block diagram

SG370S-C
SG370S-C
Panduit
Cable Ties Cable Tie SG Series 15.3"L (389mm) St
Data Sheet
0-1: $0.33
1-100: $0.31
100-500: $0.29
500-1000: $0.27
SG370S-C0
SG370S-C0
Panduit
Cable Ties Cable Tie SG Series 15.3"L (389mm) St
Data Sheet
0-1: $0.35
1-100: $0.33
100-500: $0.31
500-1000: $0.29
SG370S-M
SG370S-M
Panduit
Cable Ties Cable Tie, SG Series, 15.3"L (389mm), St
Data Sheet
Negotiable 
SG370S-M0
SG370S-M0
Panduit
Cable Ties Cable Tie, SG Series, 15.3"L (389mm), St
Data Sheet
Negotiable 
SG3731
SG3731
Other

Data Sheet
Negotiable 
SG375500D-24
SG375500D-24
FerriShield
EMI Connector Gaskets D Shape RFI Shielding Gasket
Data Sheet
0-1: $6.91
1-25: $6.26
25-50: $5.75
50-100: $4.78