Infineon Technologies TLE80802EMXUMA1

Overview

TLE80802EMXUMA1 from Infineon Technologies is an AEC-qualified engine management IC for small-displacement internal combustion engines, integrating a 5 V ±2% / 250 mA regulator, ISO 9141 K-line transceiver, SPI interface, configurable variable reluctance sensor (VRS) input, and five protected low-side drivers - including two 2.6 A inductive, two 350 mA inductive, and one 3 A resistive load channels. It serves as the core power and communication hub in one-cylinder motorcycle ECU designs.

For engineers reviewing the TLE80802EMXUMA1 datasheet, TLE80802EMXUMA1 pinout, TLE80802EMXUMA1 application, or TLE80802EMXUMA1 equivalent, key selection criteria include its dual-current low-side driver architecture, integrated VRS front-end with differential input capability, K-line compliance for legacy diagnostics, watchdog supervision, and PG-SSOP24 packaging with exposed thermal pad.

Technical Context

The TLE80802EMXUMA1 implements Smart Power Technology (SPT) with embedded protection logic across all power stages: overtemperature shutdown, overcurrent limiting, open-load/short-to-GND diagnosis in off-state, and undervoltage lockout on V5DD. Its K-line interface supports bidirectional ISO 9141-2 communication via dedicated TX/RX pins with internal pull-up/pull-down biasing.

The VRS interface accepts differential analog inputs (VR_IN1/VR_IN2), processes zero-crossing detection, and drives a buffered VR_OUT signal; the SPI interface operates at up to 10 MHz with full-duplex capability, register-mapped diagnostics, and configurable channel enable/disable control.

Key Specifications

Pinout & Package

Package: PG-SSOP24 (24-pin plastic shrink small outline package) with exposed thermal pad (Pin 25) requiring external connection to PGND for thermal and electrical integrity.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar engine management applications.

Compared with TLE8080EMXUMA1 and TLE80802EMXUMA1, the TLE80802EMXUMA1 offers reduced V5DD reset hysteresis and faster reset assertion - advantageous in battery-voltage-sensitive applications where early MCU initialization is critical, while retaining identical driver performance, protection features, and pinout.

Availability

TLE80802EMXUMA1 is available at Aetrix Electronics and suitable for motorcycle ECU design, small-engine generator control, marine outboard management, and ATV/UTV engine electronics requiring stable component supply, AEC-Q100 qualification, and long-term industrial lifecycle support.

Supply support for TLE80802EMXUMA1 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 ICs, and industrial control solutions, with global manufacturing and quality certification aligned to IATF 16949.

The TLE80802EMXUMA1 belongs to Infineon's Smart Power family, designed specifically for cost-optimized, highly integrated engine control units in small-displacement ICE applications - emphasizing functional safety, diagnostic depth, and ruggedized packaging.

FAQ

What is the maximum continuous current rating for OUT1 and OUT2?

OUT1 and OUT2 are rated for 2.6 A continuous DC current per channel under TA = 85°C with adequate PCB copper area and thermal vias beneath the exposed pad. Peak pulsed current capability exceeds 5 A for <100 µs, limited by SOA constraints and junction temperature rise. Derating applies above 85°C ambient.

Does the TLE80802EMXUMA1 support simultaneous K-line and SPI communication?

Yes - K-line (via KIO, TX, RX) and SPI (via CSN, SCLK, SI, SO) operate independently and concurrently. The K-line transceiver handles physical-layer ISO 9141 communication, while SPI manages configuration, status readback, and channel control without interference.

How is open-load diagnosis implemented on the low-side drivers?

Open-load diagnosis is performed in the off-state by measuring residual current through each output channel using internal sense FETs. Detection occurs only when the driver is disabled and VS > 6 V; results are latched into SPI-accessible diagnosis registers and can trigger NRO assertion if enabled.

Is external compensation required for the 5 V regulator?

No external compensation is needed. The integrated 5 V regulator is internally compensated and stable with ceramic output capacitors ≥470 nF. A minimum 470 nF X7R/X5R capacitor must be placed between V5DD and PGND, close to the IC, to ensure loop stability and transient response.