Overview
The DRV8832DGQ, produced by Texas Instruments, is a low-voltage motor driver IC designed for battery-powered and low-voltage motion control applications. This device features an integrated H-bridge motor driver, enabling it to drive one DC motor, one winding of a stepper motor, or other loads such as solenoids. The DRV8832DGQ is particularly useful in applications requiring efficient PWM voltage control to maintain constant motor speed despite varying supply voltages, thereby extending battery life.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Supply Voltage (VCC) | 2.75 | - | 6.8 | V |
| Maximum DC/RMS or Peak Output Current | - | - | 1 | A |
| Sleep Mode Supply Current (IVCCQ) | 0.3 | 1 | - | μA |
| Undervoltage Lockout (VUVLO) | 2.47 | 2.75 | - | V |
| Overcurrent Protection Trip Level (IOCP) | 1.3 | - | 3 | A |
| Thermal Shutdown Temperature (TTSD) | 150 | - | 180 | °C |
| Reference Output Voltage (VREF) | 1.235 | 1.285 | 1.335 | V |
Key Features
- H-Bridge Configuration: The DRV8832DGQ features an H-bridge driver block consisting of N-channel and P-channel power MOSFETs to drive motor windings efficiently.
- PWM Voltage Regulation: Provides PWM voltage control to maintain constant motor speed over varying battery voltages, ensuring long battery life.
- Internal Protection Functions: Includes overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature protection to ensure reliable operation.
- Current Limit Function: Regulates motor current during start-up or stall conditions and includes a fault output pin to signal fault conditions to the host processor.
- Low Power Consumption: Offers a sleep mode with a typical current of 300 nA, reducing power consumption when not in use.
- Compact Packaging: Available in 3-mm × 3-mm 10-pin VSON and MSOP PowerPAD packages, which are eco-friendly (RoHS & no Sb/Br).
Applications
- Battery-Powered Toys: Ideal for toys that require efficient and reliable motor control.
- Printers: Suitable for driving motors in printer mechanisms.
- Robotics: Used in robotic systems that require precise motor control.
- Cameras: Can be used in camera systems that need motorized components.
- Other Motion Control Applications: Applicable in various low-voltage or battery-powered motion control scenarios.
Q & A
- What is the operating voltage range of the DRV8832DGQ?
The DRV8832DGQ operates on power supply voltages from 2.75 V to 6.8 V.
- What is the maximum output current of the DRV8832DGQ?
The device can supply up to 1 A of DC/RMS or peak output current with sufficient PCB heatsinking.
- What protection features does the DRV8832DGQ have?
The device includes overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature protection.
- How does the DRV8832DGQ regulate motor speed?
The device uses a PWM voltage regulation method to maintain constant motor speed over varying battery voltages.
- What is the purpose of the fault output pin on the DRV8832DGQ?
The fault output pin signals a host processor of fault conditions such as overcurrent, short-circuit, undervoltage, or overtemperature.
- What are the available package options for the DRV8832DGQ?
The device is available in 3-mm × 3-mm 10-pin VSON and MSOP PowerPAD packages.
- Is the DRV8832DGQ eco-friendly?
- What is the typical sleep mode current of the DRV8832DGQ?
- How does the thermal shutdown feature work in the DRV8832DGQ?
- What types of motors can the DRV8832DGQ drive?
