Infineon Technologies BTN8982TAAUMA1

Overview

BTN8982TAAUMA1 from Infineon Technologies is an AEC-Q100 qualified automotive high-current PN half-bridge IC integrating a p-channel high-side MOSFET (R_DS(on) ≤ 10.5 mΩ @ 150 °C), n-channel low-side MOSFET (R_DS(on) ≤ 9.9 mΩ @ 150 °C), and driver IC in a single PG-TO263-7-1 package. It delivers 55 A minimum current limitation, logic-level inputs, and active freewheeling for PWM motor control in 12 V/24 V automotive body electronics.

For engineers reviewing the BTN8982TAAUMA1 datasheet, BTN8982TAAUMA1 pinout, BTN8982TAAUMA1 application, or BTN8982TAAUMA1 equivalent, key selection criteria include its charge-pump-free p-channel high-side architecture, integrated overtemperature latch, adjustable slew rate via external resistor, and status flag with current sense capability for real-time diagnostics.

Technical Context

The device implements a monolithic NovalithIC™ architecture with three die-HS p-MOSFET, LS n-MOSFET, and driver IC-mounted on a common lead frame using chip-on-chip and chip-by-chip technology. Its p-channel HS eliminates charge pump circuitry, reducing EMI and simplifying PCB layout.

Protection functions operate independently: undervoltage shutdown triggers below 5.5 V, overtemperature protection latches at T_j ≥ 150 °C, and switched-mode current limitation activates at ≥55 A with fast response to short-circuit events on either switch leg.

Key Specifications

Pinout & Package

Package: PG-TO263-7-1 (exposed thermal pad, 7-pin variant with pins 4 and 8 tied internally to OUT). The package supports high-power dissipation with low thermal resistance and AEC-Q100-compliant construction for under-hood use.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current automotive half-bridge applications.

Compared with BTN7960B and TPS28225D, BTN8982TAAUMA1 uniquely combines AEC-Q100 qualification, integrated current sense, adjustable slew rate, and latch-type thermal protection in a single monolithic package-reducing design complexity, component count, and validation effort for automotive body control modules.

Availability

BTN8982TAAUMA1 is available at Aetrix Electronics and suitable for automotive wiper systems, electric power steering assist modules, and HVAC blower fan control requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for BTN8982TAAUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certification aligned to IATF 16949.

BTN8982TAAUMA1 belongs to the NovalithIC™ family of integrated high-current half-bridges designed specifically for AEC-Q100-compliant automotive motor control applications where space, reliability, and functional safety are critical.

FAQ

What is the maximum allowable pulse current for BTN8982TAAUMA1?

The device supports up to 117 A pulsed drain current for a 10 ms single pulse at T_C < 85 °C, as specified in Absolute Maximum Ratings. This value assumes proper heatsinking and is limited by thermal protection activation; actual achievable pulse current depends on PCB copper area, ambient temperature, and pulse repetition rate.

How does the IS pin function during normal operation and fault conditions?

During normal operation, the IS pin outputs an analog voltage proportional to load current (typ. 0.5 V/A). During overcurrent or short-circuit events, it transitions to open-drain fault flag mode, pulling low to signal error condition while maintaining current-sense functionality until the fault clears or INH is toggled.

Can BTN8982TAAUMA1 be used in H-bridge configurations?

Yes - two BTN8982TAAUMA1 devices can be combined to form a full H-bridge, with one controlling the high-side legs and the other the low-side legs. Synchronization of IN/INH signals and careful PCB layout to minimize loop inductance are required to ensure safe commutation and avoid shoot-through.

What is the purpose of the SR pin and how is it configured?

The SR pin adjusts the slew rate of both MOSFETs by connecting an external resistor between SR and GND. A 10 kΩ resistor yields ~10 V/ns dV/dt; increasing resistance reduces edge speed to lower EMI, while decreasing resistance increases switching speed to reduce conduction losses - enabling application-specific EMI/efficiency tuning.