Overview
The DRV8212DSGR, produced by Texas Instruments, is an integrated motor driver designed to drive brushed DC motors, solenoids, and other loads. This device is part of the DRV8212 family, which offers pin-to-pin scalable RDS(on) and supply voltage options to support various loads and supply rails with minimal design changes. The DRV8212DSGR features a tripler charge pump architecture, allowing it to operate down to 1.65 V and accommodate low-battery conditions. It integrates all necessary capacitors, reducing the overall solution size on a PCB and enabling 100% duty cycle operation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VM) | 1.65 to 11 | V |
| Logic Supply Voltage (VCC) | 1.65 to 5.5 | V |
| Peak Output Current (IOUT) | 0 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 |
| Operating Ambient Temperature (TA) | -40 to 125 | °C |
| Operating Junction Temperature (TJ) | -40 to 150 | °C |
| Package Type | WSON (8 pins) | |
| Package Body Size | 2.00 mm × 2.00 mm |
Key Features
- N-channel H-bridge motor driver: Capable of driving one bidirectional DC motor or other loads like solenoids and bistable relays.
- Tripler charge pump architecture: Allows operation down to 1.65 V and accommodates low-battery conditions.
- Integrated capacitors: Reduces the overall solution size on a PCB and enables 100% duty cycle operation.
- Multiple control interface modes: Supports PWM (IN1/IN2), phase/enable (PH/EN), independent half-bridge, and parallel half-bridge modes.
- Low-power sleep mode: Automatically enters a low-power sleep mode when inputs remain inactive for 1-2 ms, reducing microcontroller GPIO connections.
- Robust internal protection features: Includes supply undervoltage lockout (UVLO), output overcurrent protection (OCP), and device overtemperature protection (TSD).
Applications
- Brushed DC motor driving: Suitable for various motor-driven applications.
- Solenoid and relay driving: Can drive solenoids and bistable relays bidirectionally.
- Consumer electronics: Used in devices such as video doorbells, machine vision cameras, electronic smart locks, and electronic and robotic toys.
- Medical devices: Applicable in blood pressure monitors, infusion pumps, and electric toothbrushes.
- Industrial and metering applications: Suitable for water, gas, and electricity meters.
Q & A
- What is the operating voltage range of the DRV8212DSGR?
The DRV8212DSGR operates with a supply voltage from 1.65 V to 11 V and a logic supply voltage from 1.65 V to 5.5 V.
- What is the peak output current of the DRV8212DSGR?
The DRV8212DSGR can supply up to 4 A peak output current.
- What are the different control interface modes supported by the DRV8212DSGR?
The device supports PWM (IN1/IN2), phase/enable (PH/EN), independent half-bridge, and parallel half-bridge modes.
- How does the DRV8212DSGR handle low-power operation?
The device automatically enters a low-power sleep mode when inputs remain inactive for 1-2 ms, reducing microcontroller GPIO connections.
- What protection features are integrated into the DRV8212DSGR?
The device includes supply undervoltage lockout (UVLO), output overcurrent protection (OCP), and device overtemperature protection (TSD).
- What is the package type and size of the DRV8212DSGR?
The DRV8212DSGR comes in a WSON (8 pins) package with a body size of 2.00 mm × 2.00 mm.
- What are some typical applications of the DRV8212DSGR?
It is used in brushed DC motor driving, solenoid and relay driving, consumer electronics, medical devices, and industrial and metering applications.
- How does the tripler charge pump architecture benefit the DRV8212DSGR?
The tripler charge pump architecture allows the device to operate down to 1.65 V and accommodates low-battery conditions, reducing the overall solution size on a PCB and enabling 100% duty cycle operation.
- What is the operating temperature range of the DRV8212DSGR?
The device operates within an ambient temperature range of -40°C to 125°C and a junction temperature range of -40°C to 150°C.
- How does the DRV8212DSGR handle dead-time generation?
The device automatically handles the dead-time generation when switching between the high-side and low-side MOSFET of a half-bridge.
