產品詳細資料

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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* Data sheet DRV8235 38V 3.7A Brushed DC Motor Driver with Integrated Speed Regulation and Stall Detection datasheet PDF | HTML 2024年 4月 3日
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024年 4月 30日

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開發板

DRV8234EVM — 適用於具有熄火偵測與漣波計數之有刷 DC 馬達驅動器的 DRV8234 評估模組

DRV8234 評估模組 (EVM) 可用於輕鬆評估 DRV8234 產品。EVM 已編程並配置為可立即使用並開始轉動馬達。

DRV8234 是一款具備 N 通道 H 橋、充電泵、電流感測輸出、電流調節和保護電路的整合式馬達驅動器。DRV8234 整合漣波計數技術,可進行無感測器馬達位置監控、熄火偵測,以及速度和電壓調節。電荷泵整合了所有電容器,並允許 100% 工作週期運作。EVM 附帶 GUI 以輕鬆控制馬達驅動器。

使用指南: PDF | HTML
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開發板

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 (...)

使用指南: PDF | HTML
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WQFN (RTE) 16 Ultra Librarian

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