原装现货供应DRV8870DDAR Texas Instruments 马达/运动/点火控制器和驱动器

1  基本信息：

型号: DRV8870DDAR,   厂牌：TI    封装：SOP8    MPQ：2500

2 Description说明

DRV8870设备是一个刷直流电机驱动器
for printers, appliances, industrial equipment, and
用于打印机、电器、工业设备和
other small machines. Two logic inputs control the Hbridge driver, which consists of four N-channel
其他小型机器。两个逻辑输入控制Hbridge驱动器，该驱动器由四个N通道组成
MOSFETs that can control motors bidirectionally with
可以双向控制电机的MOSFET
up to 3.6-A peak current. The inputs can be pulsewidth modulated (PWM) to control motor speed, using
高达3.6-A峰值电流。输入可以通过脉冲宽度调制（PWM）来控制电机速度，使用
a choice of current-decay modes. Setting both inputs
电流衰减模式的选择。设置两个输入
low enters a low-power sleep mode.
低进入低功耗睡眠模式。
The DRV8870 device features integrated current
DRV8870设备具有集成电流
regulation, based on the analog input VREF and the
基于模拟输入VREF和
voltage on the ISEN pin, which is proportional to
ISEN引脚上的电压，与
motor current through an external sense resistor. The
通过外部感应电阻器的电机电流。这个
ability to limit current to a known level can
将电流限制在已知水平的能力
significantly reduce the system power requirements
显著降低系统电源需求
and bulk capacitance needed to maintain stable
体积电容需要保持稳定
voltage, especially for motor startup and stall
电压，特别是电动机起动和失速时的电压
conditions.
条件。
The device is fully protected from faults and short
该装置有充分的故障和短路保护
circuits, including undervoltage (UVLO), overcurrent
电路，包括欠压（UVLO）、过电流
(OCP), and overtemperature (TSD). When the fault
（OCP）和过热（TSD）。当故障发生时
condition is removed, the device automatically
条件解除，设备自动
resumes normal operation.
恢复正常操作。

3 Applications应用

• Printers打印机
• Appliances电器
• Industrial Equipment工业设备
• Other Mechatronic Applications其他机电一体化应用