This is a chip for driving motors. It can provide 350mA continuous drive capability, contains all the logic required for full stepping and half stepping, supports fast stepping rates, can be used as a voltage doubler, and can be used as a phase generator or driver. It supports power-on reset.
The UNITRODE UC1517 and UC3517 are integrated stepper motor drive circuits designed for full-step and half-step motor control. The UC3517 includes four NPN drivers configured in a two-phase fashion, along with emitter followers and monostables to support bilevel operation for faster stepping rates.
| Continuous Drive Capability per Phase | 350mA |
|---|---|
| Logic Supply Voltage (UC1517) | -65°C to +125°C |
| Logic Supply Voltage (UC3517) | 0°C to +70°C |
| Phase Output Saturation Voltage | 0.6V to 0.85V (at I=350mA) |
| Power-On Threshold | 4.3V |
The device supports a continuous drive capability of 350mA per phase.
Yes, the UC1517 and UC3517 contain logic for full and half stepping and can be used as a phase generator or driver.
The IC supports unipolar, unipolar bilevel, voltage-doubled, higher current operation with external drivers, and bipolar motor drive modes.