DRV8850

ACTIVO

Controlador de motor de puente H de 7 V y 8 A con LDO y realimentación de corriente

Detalles del producto

Number of full bridges 1 Vs (min) (V) 2 Vs ABS (max) (V) 7 Peak output current (A) 9.5 RDS(ON) (HS + LS) (mΩ) 65 Sleep current (µA) 1 Control mode Independent 1/2-Bridge, PWM Control interface Hardware (GPIO) Features Current sense Amplifier, Voltage Regulator Rating Catalog Operating temperature range (°C) -40 to 85
Number of full bridges 1 Vs (min) (V) 2 Vs ABS (max) (V) 7 Peak output current (A) 9.5 RDS(ON) (HS + LS) (mΩ) 65 Sleep current (µA) 1 Control mode Independent 1/2-Bridge, PWM Control interface Hardware (GPIO) Features Current sense Amplifier, Voltage Regulator Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGY) 24 19.25 mm² 5.5 x 3.5
  • H-Bridge Motor Driver
    • Drives a DC Motor, One Winding of a Stepper Motor, or Other Loads
    • Low MOSFET On-Resistance: 65 mΩ HS + LS at 4.2V, 25°C
  • 5-A Continuous 8-A Peak-Drive Current
  • Internal Current Sensing With Current Sense Output
  • 2 to 5.5-V Operating Supply Voltage Range
  • Overvoltage and Undervoltage Lockout
  • Low-Power Sleep Mode
  • 100-mA Isolated Low-Dropout (LDO) Voltage Regulator
  • 24-Pin VQFN Package
  • H-Bridge Motor Driver
    • Drives a DC Motor, One Winding of a Stepper Motor, or Other Loads
    • Low MOSFET On-Resistance: 65 mΩ HS + LS at 4.2V, 25°C
  • 5-A Continuous 8-A Peak-Drive Current
  • Internal Current Sensing With Current Sense Output
  • 2 to 5.5-V Operating Supply Voltage Range
  • Overvoltage and Undervoltage Lockout
  • Low-Power Sleep Mode
  • 100-mA Isolated Low-Dropout (LDO) Voltage Regulator
  • 24-Pin VQFN Package

The DRV8850 device provides a motor driver plus LDO voltage regulator solution for consumer products, toys, and other low-voltage or battery-powered motion-control applications. The device has one H-bridge driver to drive a DC motor, a voice-coil actuator, one winding of a stepper motor, a solenoid, or other devices. The output driver block consists of N-channel power MOSFETs configured as an H-bridge to drive the load. An internal charge pump generates the needed gate-drive voltages.

The DRV8850 device supplies up to 5 A of continuous output current (with proper PCB heat sinking) and up to 8-A peak current. It operates on a supply voltage from 2 V to 5.5 V.

A low-dropout linear voltage regulator is integrated with the motor driver to supply power to microcontrollers or other circuits. The LDO voltage regulator can be active in device sleep mode, so that the driver may be shut down without removing power to any devices powered by the LDO voltage regulator.

Internal shutdown functions provide overcurrent, short circuit, undervoltage, overvoltage, and
overtemperature protection. In addition, the device also has built-in current sensing for accurate current measurement.

The DRV8850 device is packaged in a 24-pin VQFN
(3.5-mm × 5.5-mm) package (Eco-friendly: RoHS and no Sb/Br).

The DRV8850 device provides a motor driver plus LDO voltage regulator solution for consumer products, toys, and other low-voltage or battery-powered motion-control applications. The device has one H-bridge driver to drive a DC motor, a voice-coil actuator, one winding of a stepper motor, a solenoid, or other devices. The output driver block consists of N-channel power MOSFETs configured as an H-bridge to drive the load. An internal charge pump generates the needed gate-drive voltages.

The DRV8850 device supplies up to 5 A of continuous output current (with proper PCB heat sinking) and up to 8-A peak current. It operates on a supply voltage from 2 V to 5.5 V.

A low-dropout linear voltage regulator is integrated with the motor driver to supply power to microcontrollers or other circuits. The LDO voltage regulator can be active in device sleep mode, so that the driver may be shut down without removing power to any devices powered by the LDO voltage regulator.

Internal shutdown functions provide overcurrent, short circuit, undervoltage, overvoltage, and
overtemperature protection. In addition, the device also has built-in current sensing for accurate current measurement.

The DRV8850 device is packaged in a 24-pin VQFN
(3.5-mm × 5.5-mm) package (Eco-friendly: RoHS and no Sb/Br).

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Documentación técnica

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Tipo Título Fecha
* Data sheet DRV8850 Low-Voltage H-Bridge IC With LDO Voltage Regulator datasheet (Rev. D) PDF | HTML 08 oct 2019
Application brief Advantages of Integrated Current Sensing (Rev. B) PDF | HTML 20 jun 2022
Application note Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 14 oct 2021

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

DRV8850EVM — DRV8850EVM: Módulo de evaluación para controlador de motor de puente H de baja tensión con regulador

The DRV8850 device provides a motor driver plus LDO voltage regulator solution for applications requiring a high start-up torque with superior thermal performance in mind. The device has one H-bridge driver to drive a DC motor, a voice-coil actuator, one winding of a stepper motor or other types of (...)

Guía del usuario: PDF
Diseños de referencia

TIDA-01162 — Diseño de referencia de comparación de accionamiento de motor de baja tensión integrado frente a dis

TIDA-01162 demonstrates the key differences between an integrated vs. discrete low-voltage motor drive solution. The discrete solution is implemented using two large external MOSFETs, while the integrated solution utilizes TI’s DRV8850 brushed DC motor driver.  Both designs are (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-00602 — Diseño de referencia del controlador del cepillo dental eléctrico

This reference design uses our low-voltage H-Bridge motor driver with an integrated low dropout (LDO) voltage regulator and an ultra-low-power microcontroller (MCU) to demonstrate a full implementation of a battery-powered electric toothbrush.
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-00616 — Diseño de referencia de LaunchPad BoosterPack para captación de energía para el control del motor de

El LaunchPad para la captación de energía para el control de motor de CC con escobillas está diseñado para cargar una batería de iones de litio o polímero de litio con energía solar y, posteriormente, usar un regulador de tensión para proporcionar alimentación del sistema secundaria a un LaunchPad (...)
Design guide: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RGY) 24 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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