Overview
The DRV8832, produced by Texas Instruments, is a low-voltage H-bridge motor driver designed for battery-powered applications such as toys, printers, and other motion control devices. It provides an integrated solution for driving DC motors, stepper motors, or other loads like solenoids. The device features a single H-bridge driver and operates on power supply voltages ranging from 2.75 V to 6.8 V, making it suitable for a variety of low-voltage applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage | 2.75 to 6.8 | V |
| Maximum DC/RMS or Peak Output Current | 1 | A |
| Sleep Mode Current | 300 | nA |
| MOSFET On-Resistance (HS + LS) | 450 | mΩ |
| Package Types | VSON (DRC), HVSSOP (DGQ) | |
| Pin Count | 10 |
Key Features
- H-bridge motor driver with PWM voltage control for constant motor speed over varying supply voltages.
- Efficient PWM voltage regulation to maintain long battery life.
- Internal protection functions including overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature protection.
- Current limit function to regulate motor current during start-up or stall conditions.
- Fault output pin to signal fault conditions to a host processor.
- Reference voltage output.
- Thermally-enhanced surface mount packages (RoHS compliant).
Applications
- Battery-powered toys and games.
- Printers and other office equipment.
- Robotic systems.
- Cameras and other imaging devices.
- Low-voltage or battery-powered motion control applications.
Q & A
- What is the operating voltage range of the DRV8832?
The DRV8832 operates on power supply voltages from 2.75 V to 6.8 V. - What is the maximum output current of the DRV8832?
The DRV8832 can supply up to 1 A of DC/RMS or peak output current. - What types of motors can the DRV8832 drive?
The DRV8832 can drive DC motors, one winding of a stepper motor, and other loads like solenoids. - What protection features are included in the DRV8832?
The DRV8832 includes overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature protection. - How does the DRV8832 regulate motor speed?
The DRV8832 uses PWM voltage regulation to maintain constant motor speed over varying battery voltages. - What is the purpose of the fault output pin?
The fault output pin signals a host processor of any fault conditions. - What are the available package types for the DRV8832?
The DRV8832 is available in VSON (DRC) and HVSSOP (DGQ) packages. - Is the DRV8832 RoHS compliant?
Yes, the DRV8832 is RoHS compliant and free of Sb/Br. - What is the sleep mode current of the DRV8832?
The sleep mode current of the DRV8832 is typically 300 nA. - How does the DRV8832 manage motor current during start-up or stall?
The DRV8832 has a current limit function to regulate the motor current during start-up or stall conditions.
