The Texas Instruments DRV8838DSGR is a compact, low-voltage H-bridge motor driver designed for battery-powered motion-control applications such as cameras, consumer electronics, toys and portable mechatronic systems.
The device integrates N-channel power MOSFETs in a full H-bridge configuration, allowing it to drive one brushed DC motor, solenoid or other bidirectional load without requiring external power MOSFETs.
DRV8838 provides a maximum drive current of 1.8A and features a typical combined high-side plus low-side MOSFET on-resistance of approximately 280mΩ, helping reduce conduction losses in compact motor-control designs.
The motor power stage uses a separate VM supply ranging from 0V to 11V, while the logic circuitry operates from a 1.8V to 7V VCC supply. The separate motor and logic supplies make the device convenient for interfacing low-voltage processors with different motor supply rails.
Unlike the related DRV8837, the DRV8838 uses a PH/EN control interface. The PH input determines motor direction, while the EN input can be used for motor enable and PWM speed control.
A dedicated nSLEEP input places the device into a very low-power sleep state. TI specifies a maximum sleep-mode current of approximately 120nA, making the DRV8838 suitable for battery-powered products that spend significant time in standby.
Integrated protection features include overcurrent protection, short-circuit protection, VCC undervoltage lockout and thermal shutdown, helping protect both the motor driver and the connected load under abnormal operating conditions.
The specific DRV8838DSGR ordering code uses an 8-pin WSON (DSG) package with an exposed thermal pad. The package measures only 2.0 × 2.0mm, making it especially suitable for space-constrained PCB designs. The R suffix denotes large tape-and-reel packaging with a standard quantity of 3,000 pieces per reel.
Key Features
- Manufacturer: Texas Instruments / TI
- Part Number: DRV8838DSGR
- Product Type: H-Bridge Motor Driver
- Motor Type: Brushed DC Motor
- Number of Full Bridges: 1
- Control Mode: PH / EN
- Motor Supply Voltage VM: 0V to 11V
- Logic Supply Voltage VCC: 1.8V to 7V
- Maximum Drive Current: 1.8A
- Peak Output Current Parametric Rating: 1.9A
- Typical HS + LS RDS(on): 280mΩ
- Integrated N-Channel MOSFET H-Bridge
- Supports PWM Speed Control
- Direction Control via PH Input
- Low-Power nSLEEP Mode
- Maximum Sleep Current: 120nA
- Overcurrent Protection
- Short-Circuit Protection
- Undervoltage Lockout
- Thermal Shutdown
- Operating Temperature: -40°C to +85°C
- Package: WSON-8
- Package Code: DSG
- Package Size: 2.0 × 2.0mm
- Exposed Thermal Pad
- Mounting Type: Surface Mount
- Packaging: Large Tape & Reel
- Standard Reel Quantity: 3,000 pcs
- RoHS Compliant
- REACH Compliant
- Product Status: Active
Typical Applications
- Brushed DC Motor Control
- Cameras
- Consumer Electronics
- Electronic Toys
- Portable Devices
- Battery-Powered Equipment
- Small Robots
- Solenoid Drivers
- Actuators
- Compact Motion-Control Systems
- Embedded Motor-Control Systems
- Low-Voltage Mechatronic Equipment
The DRV8838DSGR is well suited for designs requiring a miniature 11V, 1.8A H-bridge motor driver with simple PH/EN control, low on-resistance and extremely low standby power consumption.
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