STMicroelectronics STSPIN948
STSPIN948 - Scalable 4.5 A dual full-bridge driver for brushed DC motors
The STSPIN948 is a 4.5 A dual full-bridge driver for brushed DC motors or bipolar stepper motors.
The power stage is designed with high dynamic performance, allowing to achieve high frequency PWM control with precise duty-cycle.
Each full-bridge is totally independent with a current limiter with adjustable threshold and OFF-time with slow or mixed decay selection. Two amplifiers with fixed amplification factor are available for current sensing (using an external shunt resistor).
The adjustable slew-rate guarantees the best trade-off between performances and EMI.
Versatile power stage offers several ways of operation for a high level of flexibility.
The device offers a complete set of protection features including overcurrent, overtemperature, and low bus voltage detection.
Features
- Operating voltage up to 58 V
- Maximum output current up to 4.5 Arms
- Five driving methods with full-bridge and dual half-bridge parallel mode
- RDS(ON) HS + LS = 0.36 Ω typ.
- Adjustable power MOS slew rate
- Integrated amplifiers with two different embedded current control techniques
- Adjustable OFF-time with slow or mixed decay
- Low consumption standby
- Protections
- UVLO
- Overcurrent protection
- Thermal shutdown
EVSPIN948 - Dual brushed DC motor driver expansion board based on STSPIN948
The EVSPIN948 dual brushed DC motor driver evaluation board is based on the STSPIN948.
It provides an affordable and easy-to-use solution for the implementation of brushed DC motor driving applications. Thanks to the parallel operation, it can be easily converted to a single brushed DC motor driver with double current capability. In addition to the internal current limiter, the integrated amplifiers allow it to be used in systems with external current control. The EVSPIN948 is compatible with the Arduino® UNO R3 connector and most STM32 Nucleo boards.
Features
- Voltage range from 5 V to 58 V
- Phase current up to 4.5 A r.m.s
- Adjustable output slew rate
- Five different driving modes
- Current limiter with adjustable off-time
- Two integrated amplifiers with fixed gain
- Full protection set including: overcurrent, undervoltage lockout, and thermal shutdown
- Compatible with Arduino® UNO R3 connector and STM32 Nucleo boards
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