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·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 TMI8180A is a motor driver for wide variety of applications. The 🥂devicꦡe integrates N-channel H-bridge, charge pump regulator, current sensing and regulation, current proportional output, and prꦺotection circuitry. The charge pump improves efficiency by allowing for high side N-channels MOSFETs and 100% duty cycle support.
Integrated curꦡrent sensing aꦰllows for the driver to regulate the mo💞tor ♔current during start up and high load events. A current limit can be set with an adjustab🔯le externa🦹l voltage reference. Additionally, the device provides an output current propor🍎tional tꦰo 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 TMI8180A, it is necessary to ensure that nSLP bꩵecomes logic high at least 3ms after power-on. The device is fully protected from faults and short circuits, including undervo💮ltage lockout (UVLO), output over-current protection (OCP), and device thermal shutdown (TSD).