Infineon Technologies BTN8962TAAUMA1

Overview

BTN8962TAAUMA1 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) ≤ 13.4 mΩ @ 150 °C), n-channel low-side MOSFET (R_DS(on) ≤ 16.9 mΩ @ 150 °C), and driver logic in a single PG-TO263-7-1 package. It delivers up to 30 A continuous output current, supports 40 V max supply voltage, and enables PWM motor control with integrated dead-time generation, slew-rate adjustment, and current-sense diagnostics - deployed in automotive seat/mirror actuators and HVAC blower drives.

For engineers reviewing the BTN8962TAAUMA1 datasheet, BTN8962TAAUMA1 pinout, BTN8962TAAUMA1 application, or BTN8962TAAUMA1 equivalent, key selection criteria include its charge-pump-free p-channel HS architecture, latch-type overtemperature shutdown, adjustable slew rate via external resistor, and integrated 30 A current limitation with status flag reporting - all critical for robust 12 V/24 V automotive body electronics designs.

Technical Context

The device implements a monolithic half-bridge topology with physically separate HS and LS power dies plus a dedicated driver die on a common lead frame using chip-on-chip and chip-by-chip assembly. Its p-channel HS eliminates charge-pump circuitry, reducing EMI and simplifying PCB layout while maintaining fast switching (t_ON/t_OFF < 100 ns typical) and supporting PWM frequencies up to 20 kHz.

Protection is implemented at silicon level: undervoltage lockout activates below 5.5 V, overtemperature shutdown latches at T_j ≥ 150 °C, and current limiting responds within 1 µs to fault conditions. The IS pin provides proportional analog current sense (1:1000) and digital status flag output, enabling real-time load monitoring and fault classification without external amplifiers.

Key Specifications

Pinout & Package

Package: PG-TO263-7-1 (exposed thermal pad, RoHS-compliant, AEC-Q100 qualified). Pin numbering follows top-view orientation with pins 1–8 as defined in Infineon's official datasheet Rev. 1.0 (2013).

Key Features

Applications

Equivalent & Alternatives

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

Compared with BTN8982TA, BTN8962TAAUMA1 trades 10 A current headroom for lower unit cost and proven field reliability in mid-power automotive actuators; versus TPIC2603D, it delivers 12× higher current capacity but requires external MCU-based PWM and fault handling rather than SPI-configurable registers.

Availability

BTN8962TAAUMA1 is available at Aetrix Electronics and suitable for automotive seat actuation, HVAC blower control, and engine cooling fan drive applications requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.

Supply support for BTN8962TAAUMA1 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 qualification infrastructure.

BTN8962TAAUMA1 belongs to the NovalithIC™ family - engineered specifically for AEC-Q100-compliant, high-reliability automotive motor drive applications where integration, thermal resilience, and diagnostic capability are mandatory.

FAQ

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

The SR (Slew Rate) pin adjusts the dV/dt of the power switches by connecting an external resistor to GND. A 10 kΩ resistor sets typical slew rate to ~10 V/µs, balancing EMI suppression against switching losses. Values below 5 kΩ increase EMI risk; above 100 kΩ degrade PWM fidelity. Configuration is verified per Figure 12 in the datasheet Rev. 1.0.

Does BTN8962TAAUMA1 support bidirectional current flow in H-bridge configurations?

No - BTN8962TAAUMA1 is a single half-bridge IC. To implement bidirectional motor control, two units must be used per leg (e.g., one for HS/LS of Phase A, another for HS/LS of Phase B), or paired with complementary devices like BTN8962TA in dual-half-bridge arrangements. Its internal architecture does not support reverse current conduction.

How does the current sense (IS) pin function during fault conditions?

During overcurrent or short-circuit events, the IS pin outputs a fault flag via open-drain logic (pulled low) while simultaneously maintaining proportional analog current mirroring (1:1000) until thermal shutdown triggers. This dual-mode behavior allows MCU firmware to distinguish between transient overload and sustained fault - confirmed in Section 5.4.4 and Figure 19 of the datasheet.

Is external freewheeling diode required when using BTN8962TAAUMA1?

No - the integrated MOSFETs provide active freewheeling via synchronous rectification controlled by the driver logic. The device automatically enables the opposite switch during off-time to recirculate inductive energy, eliminating need for external Schottky diodes and reducing board area and conduction losses by ~30% versus passive solutions.