主页 电机驱动器 电磁阀驱动器
主页
电机驱动器
电磁阀驱动器
新

DRV8844A

正在供货

65V、2.5A 双路 H 桥电机驱动器，具有双极性电源和独立半桥控制、PGND

立即订购
数据表

DRV8844A

正在供货
数据表 立即订购

产品详情

Control interface Hardware (GPIO) Control mode Independent 1/2-Bridge, PWM Sleep current (mA) 0.5 Vs (max) (V) 70 Vs (min) (V) 8 Vs ABS (max) (V) 70 Peak output current (A) 2.5 Operating temperature range (°C) -40 to 125 Rating Catalog Topology Push-Pull
Control interface Hardware (GPIO) Control mode Independent 1/2-Bridge, PWM Sleep current (mA) 0.5 Vs (max) (V) 70 Vs (min) (V) 8 Vs ABS (max) (V) 70 Peak output current (A) 2.5 Operating temperature range (°C) -40 to 125 Rating Catalog Topology Push-Pull
HVSSOP (DGQ) 28 34.79 mm² 7.1 x 4.9
  • Four-channel half-bridge driver
    • Independent control of each half-bridge
    • Can be used as low-side or high-side switch
    • Outputs can be connected in parallel
  • Low MOSFET RDS(ON): 210mΩ per FET
    • 2.5A Maximum Drive Current at 24V, 25°C
  • Bipolar power supply support up to ±32.5V
  • 8V to 65V operating supply voltage range
  • Separate power grounds for connection of optional sense resistors
  • Can drive various types of loads -
    • Four solenoids, valves, or relays
    • Two brushed-DC motors
    • One stepper motor
    • One or two Peltier thermoelectric coolers (TEC)
    • One 3-phase brushless-DC (BLDC) motor
  • Built-in 3.3V, 10mA LDO regulator
  • Industry standard IN/EN digital control interface
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Overcurrent protection (OCP)
    • Thermal shutdown (TSD)
    • Fault condition output (nFAULT)
  • Four-channel half-bridge driver
    • Independent control of each half-bridge
    • Can be used as low-side or high-side switch
    • Outputs can be connected in parallel
  • Low MOSFET RDS(ON): 210mΩ per FET
    • 2.5A Maximum Drive Current at 24V, 25°C
  • Bipolar power supply support up to ±32.5V
  • 8V to 65V operating supply voltage range
  • Separate power grounds for connection of optional sense resistors
  • Can drive various types of loads -
    • Four solenoids, valves, or relays
    • Two brushed-DC motors
    • One stepper motor
    • One or two Peltier thermoelectric coolers (TEC)
    • One 3-phase brushless-DC (BLDC) motor
  • Built-in 3.3V, 10mA LDO regulator
  • Industry standard IN/EN digital control interface
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Overcurrent protection (OCP)
    • Thermal shutdown (TSD)
    • Fault condition output (nFAULT)

The DRV8844A is a four-channel, individually controllable half-bridge driver for a wide range of applications. The device supports up to 2.5A peak or 1.75A RMS output current at 24V and 25°C with proper PCB heatsinking. The output stage of the device consists of N-channel power MOSFETs configured as four independent half-bridges, allowing the device to be used for driving two DC motors, one stepper motor, four solenoids, or other loads. Each output can be a LS switch (low-side switch), HS switch (high-side switch), or a push-pull output driver.

Separate inputs to independently control each 1/2-H-bridge are provided. To allow operation with split (positive and negative) power supplies, the logic inputs and nFAULT output are referenced to a separate floating ground pin. Additionally, the DRV8844A supports the connection of sense resistors on each individual half-bridge, allowing for current sensing at the system level for applications such as motor control.

Internal shutdown functions are provided for over current protection, short circuit protection, undervoltage lockout, and overtemperature.

The DRV8844A is a four-channel, individually controllable half-bridge driver for a wide range of applications. The device supports up to 2.5A peak or 1.75A RMS output current at 24V and 25°C with proper PCB heatsinking. The output stage of the device consists of N-channel power MOSFETs configured as four independent half-bridges, allowing the device to be used for driving two DC motors, one stepper motor, four solenoids, or other loads. Each output can be a LS switch (low-side switch), HS switch (high-side switch), or a push-pull output driver.

Separate inputs to independently control each 1/2-H-bridge are provided. To allow operation with split (positive and negative) power supplies, the logic inputs and nFAULT output are referenced to a separate floating ground pin. Additionally, the DRV8844A supports the connection of sense resistors on each individual half-bridge, allowing for current sensing at the system level for applications such as motor control.

Internal shutdown functions are provided for over current protection, short circuit protection, undervoltage lockout, and overtemperature.
filter 查找其他 电磁阀驱动器
下载 观看带字幕的视频 视频

技术文档

star =有关此产品的 TI 精选热门文档
未找到结果。请清除搜索并重试。
查看全部 2
类型 标题 下载最新的英语版本 日期
* 数据表 DRV8844A Quad Half-Bridge Driver with Independent Grounds 数据表 PDF | HTML 2025年 8月 7日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

DRV8844AEVM — DRV8844A 评估模块

DRV8844A 评估模块 (EVM) 可轻松评估 DRV8844A 电机驱动器。该 EVM 已被编程并配置为开箱即用，可用于立即开始旋转电机。该 EVM 展示了一个四通道 1/2 H 桥直流电机驱动器，可驱动多达四个螺线管、两个有刷直流电机和其他负载。DRV8844A 还支持在每个单独半桥上连接检测电阻器，从而实现电机控制等应用的系统级电流检测。
用户指南: PDF | HTML
TI.com 上无现货
封装 引脚 CAD 符号、封装和 3D 模型
HVSSOP (DGQ) 28 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。

支持和培训

视频