TMI8180G

TMI8180G 3.8A Brushed DC Motor Driver with Current Sensing and Regulation

数据表

TMI8180G_DS_EN_V1.0

产品详细信息

特性

说明

· N-Channel H-bridge Motor Driver: Drives One Bidirectional Brushed DC Motor, Two Unidirectional Brushed DC Motors, or Other Resistive and Inductive Loads

· Wide 4.5V to 37V Operating Voltage

· Up to 3.8A Peak Current

· Integrated Current Sensing and Regulation

· Supports 1.8V, 3.3V, 5V Logic Inputs

· Ultra-Low Power Sleep Mode

· VM Under voltage Lockout (UVLO)

· Integrated protection features - Over current Protection (OCP) - Thermal Shutdown (TSD)

· ESOP8 Small Package and Footprint

The TMI8180G is a motor driver for wide variety of applications. The device integrates N-channel H-bridge, charge pump regulator, current sensing and regulation, current proportional output, and protection circuitry. The charge pump improves efficiency by allowing for high side N-channels MOSFETs and 100% duty cycle support. Integrated current sensing allows for the driver to regulate the motor current during start up and high load events. A current limit can be set with an adjustable external voltage reference. Additionally, the device provides an output current proportional to the motor load current. This can be used to detect motor stall or change in load conditions. A low-power sleep mode is provided to achieve ultra- low quiescent current draw. When using TMI8180G, it is necessary to ensure that nSLP becomes logic high at least 3ms after power-on. The device is fully protected from faults and short circuits, including undervoltage lockout (UVLO), output over-current protection (OCP), and device thermal shutdown (TSD).