Overview
The DRV8837DSGT from Texas Instruments is a low-voltage H-bridge motor driver integrated circuit (IC) designed for driving DC motors, solenoids, and other loads in various applications. This device is part of the DRV883x family, which provides a comprehensive motor driver solution for cameras, consumer products, toys, and other low-voltage or battery-powered motion control systems. The DRV8837DSGT operates with a motor power supply voltage from 0 to 11 V and a logic supply voltage from 1.8 to 7 V, making it versatile for different power requirements.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Package | 8-Pin WSON (DSG) | Package type with thermal pad |
| Operating Temperature Range | -40°C to 85°C | Temperature range for operation |
| Motor Power Supply (VM) | 0 to 11 V | Voltage range for motor supply |
| Logic Power Supply (VCC) | 1.8 to 7 V | Voltage range for logic supply |
| Maximum Drive Current | 1.8 A | Maximum current the device can drive |
| MOSFET On-Resistance | 280 mΩ (HS + LS) | On-resistance of the MOSFETs |
| Input Interface | PWM (IN1 and IN2) | Type of input interface for the DRV8837 |
| Sleep Mode Current | 120 nA maximum | Current drawn in sleep mode |
| Protection Features | VCC Undervoltage Lockout (UVLO), Overcurrent Protection (OCP), Thermal Shutdown (TSD) | Protection features of the device |
Key Features
- H-Bridge Motor Driver: Drives a DC motor or other loads with an H-bridge configuration using N-channel power MOSFETs.
- Low MOSFET On-Resistance: 280 mΩ (HS + LS) for efficient operation.
- Separate Motor and Logic Supply Pins: Allows for independent power supplies for the motor and logic circuits.
- PWM or PH-EN Interface: The DRV8837 uses a PWM interface (IN1 and IN2), while the DRV8838 uses a PH-EN interface.
- Low-Power Sleep Mode: Enters a low-power sleep mode with a maximum sleep current of 120 nA.
- Small Package and Footprint: 8-Pin WSON package with a thermal pad, measuring 2.0 × 2.0 mm.
- Protection Features: Includes VCC undervoltage lockout, overcurrent protection, and thermal shutdown.
Applications
- Cameras and DSLR Lenses: Suitable for motor control in camera systems.
- Consumer Products: Used in various consumer electronics requiring motor control.
- Toys and Robotics: Ideal for battery-powered toys and robotic applications.
- Medical Devices: Can be used in medical equipment that requires precise motor control.
Q & A
- What is the maximum drive current of the DRV8837DSGT?
The maximum drive current is 1.8 A.
- What is the operating temperature range of the DRV8837DSGT?
The operating temperature range is -40°C to 85°C.
- What types of input interfaces are available for the DRV8837 and DRV8838?
The DRV8837 uses a PWM interface (IN1 and IN2), while the DRV8838 uses a PH-EN interface.
- What is the sleep mode current of the DRV8837DSGT?
The sleep mode current is 120 nA maximum.
- What protection features are included in the DRV8837DSGT?
The device includes VCC undervoltage lockout, overcurrent protection, and thermal shutdown.
- What is the package type and size of the DRV8837DSGT?
The package type is 8-Pin WSON (DSG) with a thermal pad, measuring 2.0 × 2.0 mm.
- Can the motor and logic power supplies be separate?
- What is the MOSFET on-resistance of the DRV8837DSGT?
The MOSFET on-resistance is 280 mΩ (HS + LS).
- In what applications is the DRV8837DSGT commonly used?
- Is the DRV8837DSGT still in production?
The DRV8837DSGT is in the process of being discontinued.
