DRV8837C 1-A Low-Voltage H-Bridge Driver
1 Features
- H-Bridge Motor Driver
- Drives a DC Motor or Other Loads
- Low MOSFET On-Resistance: HS + LS 1 Ω
- 1-A Maximum Drive Current
- 0- to 11-V Operating Supply-Voltage Range
- Standard PWM Interface (IN1/IN2)
- Low-Power Sleep Mode With 120-nA Maximum Sleep Current
- nSLEEP pin
- Small Package and Footprint
- 8 WSON (With Thermal Pad)
- 2.0 × 2.0 mm
- Protection Features
- VCC Undervoltage Lockout (UVLO)
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
2 Applications
- Cameras
- DSLR Lenses
- Consumer Products
- Toys
- Robotics
- Medical Devices
3 Description
The DRV8837C device provides an integrated motor driver solution for cameras, consumer products, toys, and other low-voltage or battery-powered motion control applications. The device can drive one DC motor or other devices like solenoids. The output driver block consists of N-channel power MOSFETs configured as an H-bridge to drive the motor winding. An internal charge pump generates needed gate drive voltages.
The DRV8837C device can supply up to 1 A of output current. The device operates on a motor power supply voltage from 0 to 11 V, and control logic can operate on 1.8-V to 5-V rails.
The DRV8837C device has a PWM (IN/IN) input interface.
Internal shutdown functions are provided for overcurrent protection, short circuit protection, undervoltage lockout, and overtemperature.
Device Information(1)
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| DRV8837C | WSON (8) | 2.00 mm × 2.00 mm |
- For all available packages, see the orderable addendum at the end of the data sheet.
DRV8837C Simplified Diagram
4 Revision History
Changes from * Revision (July 2016) to A Revision
- Changed the device status from Product Preview to Production DataGo
5 Pin Configuration and Functions
Pin Functions
| PIN | TYPE | DESCRIPTION | |
|---|---|---|---|
| NAME | NO. | ||
| POWER AND GROUND | |||
| GND | 4 | PWR | Device ground This pin must be connected to the PCB ground. |
| VCC | 8 | PWR | Logic power supply Bypass this pin to the GND pin with a 0.1-µF ceramic capacitor rated for VCC. |
| VM | 1 | PWR | Motor power supply Bypass this pin to the GND pin with a 0.1-µF ceramic capacitor rated for VM. |
| CONTROL | |||
| IN1 | 6 | I | IN1 input |
| IN2 | 5 | I | IN2 input |
| nSLEEP | 7 | I | Sleep mode input When this pin is in logic low, the device enters low-power sleep mode. The device operates normally when this pin is logic high. The pin has an internal pulldown resistor to GND. |
| OUTPUT | |||
| OUT1 | 2 | O | Motor output Connect this pin to the motor winding. |
| OUT2 | 3 | O | |
