Overview
The DRV8220DSGR from Texas Instruments is an 18-V H-bridge motor driver designed to drive brushed DC motors. This device is part of a family of motor drivers that offer pin-to-pin scalable RDS(on) and supply voltage options, making it versatile for various load and supply rail configurations. The DRV8220DSGR features multiple control interfaces, including PWM, phase/enable (PH/EN), and independent or parallel half-bridge modes, allowing for flexible control schemes. It also includes robust internal protection features such as supply undervoltage lockout (UVLO), output overcurrent protection (OCP), and device overtemperature protection (TSD). The device supports ultra-low quiescent current draw in sleep mode, enhancing power efficiency.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 4.5 to 18 | V |
| Output Current | Up to 1.76 | A |
| Operating Ambient Temperature | -40 to 125 | °C |
| Operating Junction Temperature | -40 to 150 | °C |
| PWM Frequency | Up to 100 kHz | |
| Package Type | WSON (8 pins), SOT563 (6 pins) | |
| Package Body Size (WSON) | 2.00 mm × 2.00 mm | |
| Junction-to-Ambient Thermal Resistance (WSON) | 94.7 | °C/W |
Key Features
- Multiple control interfaces: PWM, phase/enable (PH/EN), and independent or parallel half-bridge modes.
- Robust internal protection features: supply undervoltage lockout (UVLO), output overcurrent protection (OCP), and device overtemperature protection (TSD).
- Ultra-low quiescent current draw in sleep mode.
- Supports DC or pulse-width modulated (PWM) voltage signals with duty cycles from 0% to 100%.
- Internal pulldown resistors on input pins to ensure Hi-Z output states if no inputs are present.
- Auto sleep mode and low-power sleep mode controlled by the nSLEEP pin.
Applications
The DRV8220DSGR is suitable for a variety of applications involving brushed DC motors, including but not limited to:
- Industrial automation and robotics.
- Automotive systems such as window lifts, wiper motors, and other auxiliary motors.
- Consumer electronics like printers, scanners, and other motor-driven devices.
- Medical devices requiring precise motor control.
- IOT and smart home devices with motorized components.
Q & A
- What is the maximum output current of the DRV8220DSGR?
The DRV8220DSGR can supply up to 1.76 A of output current. - What are the supported control interfaces for the DRV8220DSGR?
The device supports PWM, phase/enable (PH/EN), and independent or parallel half-bridge control interfaces. - What are the key protection features of the DRV8220DSGR?
The device includes supply undervoltage lockout (UVLO), output overcurrent protection (OCP), and device overtemperature protection (TSD). - How does the DRV8220DSGR manage power efficiency in sleep mode?
The device features ultra-low quiescent current draw in sleep mode, controlled by the nSLEEP pin. - What is the operating temperature range for the DRV8220DSGR?
The operating ambient temperature range is -40°C to 125°C, and the operating junction temperature range is -40°C to 150°C. - What package types are available for the DRV8220DSGR?
The device is available in WSON (8 pins) and SOT563 (6 pins) packages. - Can the DRV8220DSGR handle PWM signals?
Yes, the device can handle PWM signals with frequencies up to 100 kHz. - How are the input pins configured if no inputs are present?
The input pins have internal pulldown resistors to ensure Hi-Z output states if no inputs are present. - What is the purpose of the MODE pin in the DRV8220DSGR?
The MODE pin selects the control interface mode by setting it to logic low, logic high, or Hi-Z. - Is the DRV8220DSGR part of a scalable family of devices?
Yes, the DRV8220DSGR is part of a family of devices that offer pin-to-pin scalable RDS(on) and supply voltage options.
