Infineon Technologies BTS5562EAUMA1

Overview

BTS5562EAUMA1 from Infineon Technologies is a five-channel automotive high-side smart power switch in PG-DSO-36-36 package, integrating N-channel vertical power MOSFETs with charge pumps and embedded protection. It delivers 100 mΩ max R_DS(ON) for channels 0–2 and 260 mΩ for channels 3–4 at 150 °C, supports 5.5–28 V V_BB, and drives up to 3×27 W + 2×10 W exterior lighting loads via SPI or parallel PWM inputs.

For engineers reviewing the BTS5562EAUMA1 datasheet, BTS5562EAUMA1 pinout, BTS5562EAUMA1 application, or BTS5562EAUMA1 equivalent, key selection considerations include daisy-chainable 2 MHz SPI interface, multiplexed current-sense diagnosis (IS), fail-safe limp-home activation (LHI), and AEC-Q100 qualification for automotive lighting control.

Technical Context

The BTS5562EAUMA1 implements monolithic SMART technology with integrated gate drivers, thermal shutdown with latch, multi-step current limitation, and loss-of-ground/V_BB detection. Each channel features independent overtemperature and overload flags reported via an 8-bit SPI diagnosis word.

Its SPI interface supports configurable AND/OR logic for parallel inputs, enabling direct PWM control without external logic. The IS pin provides proportional load current sensing per channel, multiplexed and enabled/disabled via SPI command - critical for real-time lamp health monitoring in tail/brake light systems.

Key Specifications

Pinout & Package

Package: PG-DSO-36-36 (exposed thermal pad, RoHS-compliant, AEC-Q100 qualified). Pin count: 36 pins, with 5 dedicated high-side outputs (OUT0–OUT4), 5 parallel inputs (IN0–IN4), SPI interface (CS, SCLK, SI, SO), diagnosis output (IS), limp-home input (LHI), and dual ground/power supply connections (GND, VDD, VBB).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side smart power switch applications.

Compared with BTS5562EAUMA1, BTS50085-1TAD offers superior conduction efficiency for single high-power loads but no diagnostics or multi-channel coordination; BTS724G provides compact 4-channel control but omits limp-home safety and analog current sense - making BTS5562EAUMA1 uniquely suited for AEC-Q100-compliant, fail-safe automotive lighting systems requiring full SPI visibility and hardware redundancy.

Availability

BTS5562EAUMA1 is available at Aetrix Electronics and suitable for automotive lighting control, body control module (BCM) power distribution, and smart rear combination lamp (RCL) designs requiring stable component supply, long lifecycle support, and AEC-Q100 compliance.

Supply support for BTS5562EAUMA1 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 automotive qualification expertise.

The BTS5562EAUMA1 belongs to Infineon's SPOC (Smart Power Octal/Quintuple) family, designed specifically for intelligent, protected high-side switching in automotive exterior lighting - emphasizing diagnostic richness, fail-safe operation, and EMC robustness.

FAQ

What is the function of the LHI (Limp Home Input) pin?

The LHI pin is an active-high hardware safety input that forces all five output channels into ON state regardless of SPI commands or parallel input states. It is intended for fail-operational scenarios - such as ECU software crash or communication loss - ensuring minimum lighting functionality remains active. Internally, it overrides control logic and directly enables gate drivers, with no dependency on VDD or SPI clock.

How does the multiplexed current sense (IS) pin work across five channels?

The IS pin outputs a time-multiplexed analog voltage proportional to each channel's load current, sequenced automatically every ~100 µs per channel. SPI register ISCTRL enables/disables this function and selects whether IS reflects instantaneous or averaged current. Accuracy is ±5% from 0.1 A to 5 A, enabling lamp filament break detection and thermal derating without external sense resistors or ADC resources.

Can BTS5562EAUMA1 drive incandescent lamps with high inrush current?

Yes - its multi-step current limitation responds to inrush: initial 7 A fast-trip threshold avoids nuisance shutdown during cold-filament surge (~10× steady-state), followed by 3.5 A soft limit that sustains until thermal equilibrium. Combined with built-in clamp diodes for inductive kickback, it safely handles typical 27 W incandescent lamp inrush peaks exceeding 4 A for >100 ms without triggering protection.

Is daisy-chaining supported, and what is the maximum number of devices?

Yes - the SPI interface supports true daisy chaining: SO of one device connects to SI of the next, with shared CS, SCLK, and VDD/GND. Up to 16 devices can be chained on a single SPI bus, with each device assigned a unique 4-bit address via external resistor straps. This enables centralized control of up to 80 lighting channels using only four MCU SPI pins and one chip-select line.