Summary of TEXAS INSTRUMENTS DRV8212 12V, 2A LOW VOLTAGE H-BRIDGE MOTOR DRIVER
The Texas Instruments DRV8212 is a low-voltage H-bridge motor driver capable of driving bidirectional brushed DC motors, relays, and solenoids. It features integrated N-channel power FETs, a charge pump regulator for operation down to 1.65V, and multiple control interfaces including PWM and Phase/Enable. The device offers robust protection against under-voltage, overcurrent, and overheating while maintaining ultra-low power consumption in sleep mode.
Parts used in the DRV8212 Motor Driver Project:
- N-channel H-bridge motor driver
- Four N-channel power FETs
- Charge pump regulator
- Protection circuitry (UVLO, OCP, TSD)
- Bidirectional brushed DC motor
- Unidirectional brushed DC motors
- Latching relay
- Solenoids
Texas Instruments DRV8212 12V, 2A Low Voltage H-Bridge Motor Driver provides PWM, PH/EN, and half-bridge control interfaces and low-power sleep mode. The DRV8212 Motor Driver is integrated with four N-channel power FETs, a charge pump regulator, and protection circuitry. The triple charge pump architecture allows the device to operate down to 1.65V to accommodate 1.8V supply rails and low-battery conditions. The charge pump integrates all capacitors to reduce the overall solution size of the motor driver on a PCB and allows for 100% duty cycle operation.
The TI DRV8212 supports multiple control interface modes including, PWM (IN1/IN2), phase/enable (PH/EN), independent half-bridge, and parallel half-bridge. Each interface supports a low-power sleep mode to achieve ultra-low quiescent current draw by shutting down most internal circuitry. The device supplies up to 4A peak output current and operates with a supply voltage from 1.65V to 5.5V.
Robust internal protection features are available on the DRV8212, including supply under-voltage lockout (UVLO), output overcurrent (OCP), and device overtemperature (TSD).
The DRV8212 is part of a family of devices that come in pin-to-pin scalable RDS(on) and supply voltage options to support various loads and supply rails with minimal design changes. This family of devices includes DRV8210, DRV8210P, DRV8212, DRV8212P, and DRV8220.
Features
- N-channel H-bridge motor driver
- MOSFET on-resistance: HS + LS 280mΩ
- Drives one bidirectional brushed DC motor
- Two unidirectional brushed DC motors
- One single- or dual-coil latching relay
- Push-pull and bistable solenoids
- Other resistive, inductive, or LED loads
- 1.65V to 11V operating supply voltage range
- High output current capability:
- Full-bridge: 4A peak
- Half-bridge: 4A peak per output
- Parallel half-bridge: 8A peak
- Multiple interfaces for flexibility and reduced GPIO
- Standard PWM Interface (IN1/IN2)
- Supports 1.8V, 3.3V, and 5V logic inputs
- Ultra-low-power sleep mode
- <84.5nA @ VVM = 5V, VVCC = 3.3V, TJ = 25°C
- Timed auto-sleep mode to reduce GPIO
- Protection features
- Undervoltage lockout (UVLO)
- Overcurrent protection (OCP)
- Thermal shutdown (TSD)
- Family of devices
Read more: TEXAS INSTRUMENTS DRV8212 12V, 2A LOW VOLTAGE H-BRIDGE MOTOR DRIVER
- What interfaces does the DRV8212 support?
The device supports PWM, phase/enable, independent half-bridge, and parallel half-bridge interfaces. - Can the DRV8212 operate with a 1.8V supply rail?
Yes, the triple charge pump architecture allows operation down to 1.65V to accommodate 1.8V supply rails. - Does the DRV8212 include internal capacitors?
Yes, the charge pump integrates all capacitors to reduce the overall solution size on a PCB. - How much peak current can the full-bridge configuration supply?
The full-bridge configuration supplies up to 4A peak output current. - What protection features are available on the DRV8212?
It includes supply under-voltage lockout, output overcurrent protection, and device overtemperature protection. - Can the DRV8212 drive two unidirectional motors simultaneously?
Yes, the device can drive one bidirectional brushed DC motor or two unidirectional brushed DC motors. - What is the quiescent current draw in sleep mode?
The ultra-low-power sleep mode achieves less than 84.5nA at specific voltage and temperature conditions. - Are there other devices in the same family as the DRV8212?
Yes, the family includes DRV8210, DRV8210P, DRV8212P, and DRV8220.
