Texas Instruments DRV8870 3.6A Brushed DC Motor Drivers
Texas Instruments DRV8870 3.6A Brushed DC Motor Drivers are brushed-DC motor drivers for printers, appliances, industrial equipment, and other small machines. These drivers are available with two logic inputs to control the H-bridge driver, which consists of four N-channel MOSFETs. The DRV8870 MOSFETs can control motors bidirectionally with up to 3.6A peak current. The inputs can be Pulse-Width modulated (PWM) to control motor speed, using a choice of current-decay modes. The DRV8870 features integrated current regulation, based on the analog input VREF and the voltage on pin ISEN. This is proportional to the motor current through an external sense resistor.
The DRV8870 drivers have the ability to limit the current to a known level and can significantly reduce the system power requirements and bulk capacitance. This is required to maintain a stable voltage, especially for motor startup and stall conditions. applications include printers, appliances, industrial equipment, and other mechatronic applications.
Features
- H-bridge motor driver:
- Drives one DC motor, one winding of a stepper motor, or other loads
- Wide 6.5V to 45V operating voltage
- 565mΩ typical RDS(on) (HS + LS)
- 3.6A peak current drive
- PWM control interface
- Integrated current regulation
- Low-power sleep mode
- Small package and footprint:
- 8-Pin HSOP with PowerPAD
- 4.9mm x 6.0mm
- Integrated protection features:
- VM Undervoltage Lockout (UVLO)
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
- Automatic fault recovery
Applications
- Printers
- Appliances
- Industrial equipment
- Other mechatronic applications
Associated Tool
Texas Instruments DRV8870EVM Motor Driver Evaluation Module (EVM)
Complete solution for evaluating the DRV8870, a 3.6A brushed motor driver.
Associated Products
Texas Instruments Driver di motori integrati DRV8x Texas Instruments
Integra circuiti di porta, amplificatori di rilevamento, protezione e FET.
Pubblicato: 2015-11-10
| Aggiornato: 2022-03-11