BTN8982TAAUMA1: A High-Performance Half-Bridge Motor Driver for Demanding Applications
The BTN8982TAAUMA1 is a high-current half-bridge motor driver integrated circuit (IC) from Infineon Technologies, designed to deliver robust and efficient control for DC motors, actuators, and other inductive loads. As part of the NovalithIC™ family, it combines a P-channel high-side MOSFET and an N-channel low-side MOSFET in a single, compact package. This integration is engineered to simplify system design while providing exceptional performance in a wide array of automotive and industrial applications, such as throttle control, HVAC actuators, fuel pumps, and power steering modules.
A key strength of the BTN8982TAAUMA1 lies in its high output current capability, supporting continuous currents up to 8 A and peak currents up to 16 A. This makes it suitable for driving motors that require significant power in a confined space. The device operates with a broad supply voltage range from 5.5 V to 28 V, comfortably covering standard 12 V and 24 V automotive battery systems. Its low static power consumption and very low standby current are critical for energy-sensitive applications, particularly in vehicles where minimizing quiescent power drain is essential.
The IC is built with comprehensive protection features that ensure safe and reliable operation under challenging conditions. These include protection against over-temperature, over-voltage, under-voltage, and over-current scenarios. Its sophisticated current sensing capability provides a proportional output current (IS) that allows the microcontroller to monitor the load current without the need for an external shunt resistor, enabling precise diagnostics and control while reducing component count and system cost.
Furthermore, the driver interfaces seamlessly with microcontrollers through its compatible input pins (IN and INH), which accept TTL or CMOS level signals. The inclusion of active free-wheeling during the decay phase enhances efficiency and reduces electromagnetic interference (EMI). The device is housed in a surface-mountable TO-263-7 package, which offers excellent thermal performance by allowing the metal tab to be directly soldered to the PCB, acting as an efficient heat sink.
ICGOOODFIND: The BTN8982TAAUMA1 stands out as a highly integrated, robust, and efficient solution for high-current motor driving. Its combination of high power density, extensive diagnostic and protection features, and minimal external component requirement makes it an superior choice for designers seeking reliability and performance in automotive and industrial systems.
Keywords: Half-Bridge Driver, High-Current Capability, Automotive Grade, Integrated Protection, Diagnostic Output.
