Rohm Semiconductor Stepper Motor Drivers
Rohm Semiconductor Stepper Motor Drivers are low-power driver Integrated Circuits (ICs) supporting Pulse Width Modulation (PWM) current drive and feature single-power-supply configuration, allowing for easy design and layout in its applications. These drivers have an operating temperature range of -25°C to +85°C. The drivers feature a built-in voltage regulator that eliminates the need for control sequencing during power ON/OFF to prevent circuit malfunction. Stepper motor drivers also incorporate voltage, current, and thermal protection circuits for improved reliability and safety. These drivers also feature a Ghost Supply Prevention function that prevents aberrant operation in OFF mode. The drivers find applications in drones, office machines, and robotics.
Features
- -25°C to +85°C operating temperature range
- Adjacent pin short protection
- Built-in logic input pull-down resistor
- CLK-IN or PARA-IN drive mode
- Freely timing excitation mode switch
- Ghost Supply Prevention that prevents aberrant operation in OFF mode
- Linearly variable FAST/SLOW DECAY ratio
- Low ON resistance DMOS output
- Micro-miniature, ultra-thin, and high heat-radiation packages
- Over-Current Protection circuit (OCP)
- Pb-free
- Power-on reset function
- PWM constant current control
- RoHS compliant
- Single power supply input
- Thermal Shutdown circuit (TSD)
- Under-Voltage Lockout circuit (UVLO)
Applications
- Drones
- Office machines
- Robotics
- Security cameras
- Sewing machines
- Toys
Technical Specifications
| Parameters | Values |
|---|---|
| Maximum power supply voltage range | 13.5V to 42V |
| Minimum power supply voltage range | 4V to 19V |
| Maximum current output range | 0.8A to 4A |
| Typical output on resistance range | 0.1Ω to 2.8Ω |
| Operating temperature range | -40°C to +125°C |
