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TMI8123

1CH H-bridge Motor Driver with Integrated Current Sense and Regulation

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

·10A Peak Current Drive 

·Integrated Current Sensing and Regulation

·PH/EN and PWM Input Control Modes 

·Cycle-by-cycle or Fixed Off-Time Current Regulation

·Supports 1.8V, 3.3V, 5V Logic Inputs

·Ultra-Low Power Sleep Mode

·VM Under Voltage Lockout (UVLO)

·Over Current Protection (OCP)

·Thermal Shutdown (TSD)

·Automatic Fault Recovery and Indicator Pin

·Package

- TMI8123: QFN4x4-16


The TMI8123 is a motor driver for wide variety of end applications. The device integrates an H-bridge, charge pump regulator, current sensing and regulation, current proportional output, and protection circuitry. The charge pump improves efficiency by allowing for both high and low 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 by shutting down most of the internal circuitry. The device is fully protected from faults and short circuits, including undervoltage lockout (UVLO), output over-current protection (OCP), and device thermal shutdown (TSD). Fault conditions are indicated on nFAULT.


TMI8123
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TMI8123

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