2020-07-16 3276
Toshiba Launches Constant-Current 2-Phase Stepping Motor Driver for Automotive Applications
Key features
General multipurpose specifications, especially for automotive applications
- DMOS FETs with low on-resistance (upper + lower = 0.8Ω (typ.)), which achieve a maximum current of 1.5 A.
- Built-in error detections with warning signal output function: Over-current detection, thermal shutdown, and load open.
- Housed in a wettable flank VQFN package (6mm×6mm) with excellent solderability
- Operating temperature range: -40℃ to 125℃
- AEC-Q100 qualified
Micro step drive, supporting up to 1/32 steps.
- Less motor noise, smoother and more precise control
- Uses only a simple clock input interface, with no need for an advanced functional MCU or dedicated software.
- Constant-current PWM control: Mixed decay mode stabilizes current waveforms.
Stall detection function
- A stall detection signal is output from SD pin after detecting a stall.
- The detection signal can be received by a microcontroller and fed back to the system.
Applications
- Mirror adjustment for the projection position of heads-up displays
- Expansion valves in refrigerant circuits for automotive air conditioners and battery management systems
Main Specifications
Note:
[1] Actual driven motor current depends on the use environment, and such factors as ambient temperature and power supply voltage.