Overview
The DRV8837CDSGR, produced by Texas Instruments, is a 1-A low-voltage H-bridge motor driver integrated circuit. This device is designed to drive DC motors or other loads such as solenoids, making it ideal for various low-voltage and battery-powered motion control applications. The DRV8837C integrates the necessary driver FETs and control circuitry into a single, compact 8-WSON package, significantly reducing the component count in motor driver systems. It features a standard PWM interface for control and includes several protection mechanisms to ensure reliable operation.
Key Specifications
| Parameter | Value |
|---|---|
| Maximum Drive Current | 1 A |
| Operating Supply Voltage Range | 0 to 11 V |
| Control Logic Voltage Range | 1.8 V to 5 V |
| MOSFET On-Resistance (HS + LS) | 1 Ω |
| Package Type | 8-WSON (With Thermal Pad) |
| Package Dimensions | 2.0 × 2.0 mm |
| RDS(on) (High-Side + Low-Side) | 240 mΩ |
| Sleep Current | 120 nA (maximum) |
Key Features
- H-bridge motor driver configuration using N-channel power MOSFETs.
- Standard PWM interface (IN1/IN2) for motor control.
- Low-power sleep mode with 120-nA maximum sleep current, enabled via the nSLEEP pin.
- Protection features include VCC undervoltage lockout (UVLO), overcurrent protection (OCP), and thermal shutdown (TSD).
- Internal charge pump for generating gate drive voltages.
- Compact 8-WSON package with thermal pad for efficient heat dissipation.
Applications
- Cameras and DSLR lenses.
- Consumer products.
- Toys and robotic devices.
- Medical devices.
- Low-voltage or battery-powered motion control applications.
Q & A
- What is the maximum drive current of the DRV8837CDSGR?
The maximum drive current is 1 A.
- What is the operating supply voltage range of the DRV8837CDSGR?
The operating supply voltage range is from 0 to 11 V.
- What is the control logic voltage range for the DRV8837CDSGR?
The control logic voltage range is from 1.8 V to 5 V.
- What type of package does the DRV8837CDSGR come in?
The DRV8837CDSGR comes in an 8-WSON package with a thermal pad.
- What are the key protection features of the DRV8837CDSGR?
The key protection features include VCC undervoltage lockout, overcurrent protection, and thermal shutdown.
- How is the sleep mode enabled in the DRV8837CDSGR?
The sleep mode is enabled via the nSLEEP pin.
- What is the typical application of the DRV8837CDSGR?
The DRV8837CDSGR is typically used in cameras, consumer products, toys, and other low-voltage or battery-powered motion control applications.
- What is the RDS(on) value for the high-side and low-side MOSFETs in the DRV8837CDSGR?
The RDS(on) value for the high-side and low-side MOSFETs is 240 mΩ.
- How does the internal charge pump function in the DRV8837CDSGR?
The internal charge pump generates the necessary gate drive voltages for the MOSFETs.
- What is the maximum sleep current of the DRV8837CDSGR?
The maximum sleep current is 120 nA.
