DRV8235

ACTIVO

Controlador de motor de CC con escobillas de 38 V y 3.7 A con regulación de velocidad integrada y

Detalles del producto

Number of full bridges 1 Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Peak output current (A) 3.7 RDS(ON) (HS + LS) (mΩ) 600 Sleep current (µA) 0.01 Control mode I2C Control interface I2C Features Integrated Current Sensing, Stall Detection Rating Catalog Operating temperature range (°C) -40 to 125
Number of full bridges 1 Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Peak output current (A) 3.7 RDS(ON) (HS + LS) (mΩ) 600 Sleep current (µA) 0.01 Control mode I2C Control interface I2C Features Integrated Current Sensing, Stall Detection Rating Catalog Operating temperature range (°C) -40 to 125
WQFN (RTE) 16 9 mm² 3 x 3

  • N-channel H-bridge brushed DC motor driver
  • 4.5V to 38V operating supply voltage range
  • Integrated Voltage and Speed regulation
  • Soft-Start and Stop feature for inrush current protection
  • 600mΩ RDS(on) (High-Side + Low-Side)
  • High output current capability: 3.7A Peak, 2A RMS
  • PWM with I2C control interface
    • Configuration and diagnostics on I2C registers
    • Multi-follower operation support
    • Supports standard and fast I2C mode
  • Supports 3.3V, and 5V logic inputs
  • Integrated current sensing and current regulation
  • Analog current sense output (IPROPI)
  • Internal charge pump with 100% duty cycle
  • Long battery life with low-power sleep mode
    • < 1µA maximum sleep current
  • Small package and footprint
    • 16-Pin WQFN with PowerPAD™, 3 × 3mm
  • Integrated protection features
    • VM undervoltage lockout (UVLO)
    • Overcurrent protection (OCP)
    • Thermal shutdown (TSD)
    • Stall detection
    • Overvoltage protection (OVP)

  • N-channel H-bridge brushed DC motor driver
  • 4.5V to 38V operating supply voltage range
  • Integrated Voltage and Speed regulation
  • Soft-Start and Stop feature for inrush current protection
  • 600mΩ RDS(on) (High-Side + Low-Side)
  • High output current capability: 3.7A Peak, 2A RMS
  • PWM with I2C control interface
    • Configuration and diagnostics on I2C registers
    • Multi-follower operation support
    • Supports standard and fast I2C mode
  • Supports 3.3V, and 5V logic inputs
  • Integrated current sensing and current regulation
  • Analog current sense output (IPROPI)
  • Internal charge pump with 100% duty cycle
  • Long battery life with low-power sleep mode
    • < 1µA maximum sleep current
  • Small package and footprint
    • 16-Pin WQFN with PowerPAD™, 3 × 3mm
  • Integrated protection features
    • VM undervoltage lockout (UVLO)
    • Overcurrent protection (OCP)
    • Thermal shutdown (TSD)
    • Stall detection
    • Overvoltage protection (OVP)

The DRV8235 is a high-performance integrated H-bridge motor driver with integrated speed regulation along with additional integrated features like stall detection, current sense output, current regulation, and protection circuitry.

The integrated speed and voltage regulation feature uses the motor voltage and current information to regulate motor speed or voltage eliminating the potential need for external sensors to detect speed. This reduces board size and design complexity, and saves on overall system cost. Integrated speed regulation is used to maintain constant motor speed over varying input supply voltages which minimizes current consumption and saves power over time. This is critical in applications that have different loading conditions or rely on battery power for operation where the input voltage is not constant. Soft-start and stop allows for a controlled turn-on and turn-off time, reducing large inrush currents to protect the motor windings from damage, thereby increasing system reliability and longevity.

An internal current mirror implements current sensing and regulation. This eliminates the need for a large power shunt resistor, saving board area and reducing system cost. The IPROPI current sense output allows a microcontroller to detect motor stall or changes in load conditions. Using the VREF pin, this device can regulate the motor current during startup and high-load events without interaction from a microcontroller. The device supports sensorless motor stall detection and reporting to microcontroller.

The DRV8235 is a high-performance integrated H-bridge motor driver with integrated speed regulation along with additional integrated features like stall detection, current sense output, current regulation, and protection circuitry.

The integrated speed and voltage regulation feature uses the motor voltage and current information to regulate motor speed or voltage eliminating the potential need for external sensors to detect speed. This reduces board size and design complexity, and saves on overall system cost. Integrated speed regulation is used to maintain constant motor speed over varying input supply voltages which minimizes current consumption and saves power over time. This is critical in applications that have different loading conditions or rely on battery power for operation where the input voltage is not constant. Soft-start and stop allows for a controlled turn-on and turn-off time, reducing large inrush currents to protect the motor windings from damage, thereby increasing system reliability and longevity.

An internal current mirror implements current sensing and regulation. This eliminates the need for a large power shunt resistor, saving board area and reducing system cost. The IPROPI current sense output allows a microcontroller to detect motor stall or changes in load conditions. Using the VREF pin, this device can regulate the motor current during startup and high-load events without interaction from a microcontroller. The device supports sensorless motor stall detection and reporting to microcontroller.

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Documentación técnica

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* Data sheet DRV8235 38V 3.7A Brushed DC Motor Driver with Integrated Speed Regulation and Stall Detection datasheet PDF | HTML 03 abr 2024

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

DRV8234EVM — Módulo de evaluación DRV8234 para controlador de motor de CC con escobillas con detección de calado

El módulo de evaluación DRV8234 (EVM) permite una fácil evaluación del dispositivo DRV8234. El EVM se programó y configuró para que funcionara de inmediato al desembalarlo y empezara a hacer girar los motores.

El DRV8234 es un controlador de motor integrado con puente en H de canal N, bomba de (...)

Guía del usuario: PDF | HTML
Placa de evaluación

DRV8235EVM — DRV8235 evaluation module

The DRV8235 evaluation module (EVM) allows for easy evaluation of the DRV8235 device. The EVM has been programmed and configured to work out of the box and begin spinning motors right away.

The DRV8235 is an integrated motor driver with N-channel H-bridge, charge pump, current sense output, current (...)

Guía del usuario: PDF | HTML
Paquete Pasadores Descargar
WQFN (RTE) 16 Ver opciones

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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Soporte y capacitación

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