Overview
The DRV8212DRLR is an integrated H-bridge motor driver produced by Texas Instruments. It is part of a family of devices that offer scalable RDS(on) and supply voltage options, making it versatile for various loads and supply rails. The device features a tripler charge pump architecture, allowing it to operate down to 1.65 V and accommodate low-battery conditions. It supports multiple control interface modes, including PWM, phase/enable, independent half-bridge, and parallel half-bridge, each with a low-power sleep mode to minimize quiescent current draw.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VM) | 1.65 to 11 | V |
| Logic Power Supply Voltage (VCC) | 1.65 to 5.5 | V |
| Peak Output Current (OUTx) | Up to 4 | A |
| High-Side MOSFET On Resistance (RDS(on)_HS) | 140 mΩ | mΩ |
| Low-Side MOSFET On Resistance (RDS(on)_LS) | 140 mΩ | mΩ |
| Body Diode Forward Voltage (VSD) | 1 V | V |
| Ambient Temperature (TA) | -40 to 125 | °C |
| Junction Temperature (TJ) | -40 to 150 | °C |
| Package Type | SOT563 (DRL) | |
| Junction-to-Ambient Thermal Resistance (RθJA) | 138.5 | °C/W |
Key Features
- Tripler charge pump architecture for operation down to 1.65 V and 100% duty cycle capability.
- Multiple control interface modes: PWM, phase/enable, independent half-bridge, and parallel half-bridge.
- Low-power sleep mode with ultra-low quiescent current draw.
- Robust internal protection features including supply undervoltage lockout (UVLO), output overcurrent (OCP), and device overtemperature (TSD).
- Supports DC or pulse-width modulated (PWM) voltage signals with duty cycles from 0% to 100%.
- Automatic dead-time generation when switching between high-side and low-side MOSFETs.
Applications
- Brushed DC motor driving.
- Solenoid and relay driving.
- Water, gas, and electricity meters.
- IP network camera IR cut filter.
- Video doorbell.
- Machine vision camera.
- Electronic smart lock.
- Electronic and robotic toys.
- Blood pressure monitors.
- Infusion pumps.
- Electric toothbrush and other beauty and grooming devices.
Q & A
- What is the operating voltage range of the DRV8212DRLR?
The DRV8212DRLR operates with a supply voltage from 1.65 V to 11 V. - What are the different control interface modes supported by the DRV8212DRLR?
The device supports PWM, phase/enable, independent half-bridge, and parallel half-bridge control interface modes. - What is the peak output current capability of the DRV8212DRLR?
The DRV8212DRLR can supply up to 4 A peak output current. - What are the key protection features of the DRV8212DRLR?
The device includes supply undervoltage lockout (UVLO), output overcurrent (OCP), and device overtemperature (TSD) protection features. - What is the purpose of the tripler charge pump architecture in the DRV8212DRLR?
The tripler charge pump architecture allows the device to operate down to 1.65 V and supports 100% duty cycle operation. - How does the DRV8212DRLR manage dead-time when switching between MOSFETs?
The device automatically generates dead-time when switching between the high-side and low-side MOSFETs. - What are the typical applications of the DRV8212DRLR?
The DRV8212DRLR is used in applications such as brushed DC motor driving, solenoid and relay driving, water, gas, and electricity meters, IP network cameras, video doorbells, and more. - What is the package type of the DRV8212DRLR?
The DRV8212DRLR comes in a SOT563 (DRL) package. - How does the DRV8212DRLR enter low-power sleep mode?
The device enters low-power sleep mode after staying in the coast/Hi-Z state for a specified duration (tSLEEP). - What is the junction-to-ambient thermal resistance of the DRV8212DRLR in the SOT563 package?
The junction-to-ambient thermal resistance (RθJA) is 138.5 °C/W.
