0
In Production
Configuration |
DC MOTOR PULSE WIDTH MODULATOR |
Current Limit / Short Circuit Protection |
No |
Enable Pin |
No |
External Clock Sync |
No |
Input UVLO Typ (V) |
0 |
Internal Compensation |
No |
Internal Voltage Bias |
No |
Iq Off (µA) |
0 |
Input Voltage Max |
15 |
Output Voltage Max |
0 |
Input Voltage Min |
3.5 |
Output Voltage Min |
0 |
Operating Supply Current (mA) |
0 |
PFM, Discontinuous, Hyperlight load, or Skip Mode |
No |
Power Good Signal |
No |
Driver Type |
Hi-Rel PWM Controller |
Soft Start |
0 |
Supported Outputs |
0 |
Supported Topologies |
2 |
Operating Temp Range (°C) |
-55 - 125 |
Max Continuous Current per Output |
0.1 |
Max Driver Output Voltage (V) |
22 |
Minimum Driver Output Voltage (V) |
2.5 |
Motor Control Method |
PWM |
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 ±100 mA, ±22 V 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.
Microchip Ordering Part Standard Microcircuit Drawing (SMD)
SG1731J-DESC Cross Reference 5962-9669901MEA
SG1731J-DESC Cross Reference 5962-9669901MEX
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