Texas Instruments DRV8935 Quad Half-Bridge Drivers
Texas Instruments DRV8935 Quad Half-Bridge Drivers are designed for driving up to four solenoid loads, two DC motors, one stepper motor, or additional loads. The output stage for each channel is comprised of N-channel power MOSFETs configured in a half-bridge. Easy interface with the controller is enabled via a simple PWM interface.The TI DRV8935 Drivers operate off a single power supply and support a wide input supply range from 4.5V to 33V. The DRV8935 supplies up to 2.5A peak or 1.75A RMS output current per channel (dependent on PCB design). A low-power sleep mode is offered to achieve a low quiescent current draw by shutting down much of the internal circuitry.
Protection functions on the device include undervoltage-lockout, overcurrent protection on each FET, short circuit protection, and overtemperature. Fault conditions are indicated by the nFAULT pin.
Features
- Quad half-bridge driver
- Can drive up to four solenoid loads, two DC motors, one stepper motor, or other loads
- Integrated current sensing and regulation
- 4.5V to 33V Operating supply voltage range
- Low RDS(ON): 330mΩ HS + LS at 24V, 25°C
- 2.5A Maximum drive current at 24V, 25°C
- Pin to pin compatible with -
- 33V, 900mΩ HS + LS DRV8932
- 48V, 330mΩ HS + LS DRV8955
- Small package and footprint
- Supports 1.8V, 3.3V, 5.0V logic inputs
- Configurable off-time PWM chopping
- 7, 16, 24 or 32µs
- Low-current sleep mode (2µA)
- Spread-spectrum clocking for low electromagnetic interference (EMI)
- Protection features
- VM undervoltage lockout (UVLO)
- Charge pump undervoltage (CPUV)
- Overcurrent protection (OCP)
- Thermal shutdown (OTSD)
- Fault condition output (nFAULT)
Applications
- Refrigerator damper and ice maker
- Textile machines
- Office and home automation
- Factory automation and robotics
- Washers, dryers, and dishwashers
- Gaming machines
- General purpose solenoid loads
Simplified Schematic
發佈日期: 2021-02-03
| 更新日期: 2022-03-11
