Infineon Technologies TLE4999C4S0001HALA1

Overview

TLE4999C4S0001 from Infineon is a dual-channel linear Hall sensor IC with redundant main/sub measurement paths, ISO 26262 ASIL C-compliant safety architecture, 12/14/16-bit programmable SPC output, CRC-protected frame transmission in <500 µs, and digital temperature/stress compensation. It operates from -40°C to +150°C and serves as a high-accuracy replacement for potentiometers in automotive pedal position sensing.

For engineers reviewing the TLE4999C4S0001 datasheet, TLE4999C4S0001 pinout, TLE4999C4S0001 application, or TLE4999C4S0001 equivalent, this page delivers verified functional identity, validated pin roles, confirmed SPC timing and diagnostic coverage, and real-world safety-critical use cases - all grounded in Infineon's official documentation.

Technical Context

The device integrates two independent analog signal chains - each with dedicated Hall probe, bias unit, analog regulator, and HTS-ADC - feeding separate DSP units (DSP1 for main channel, DSP2 for sub channel) that apply EEPROM-stored compensation coefficients for temperature and mechanical stress. Plausibility checking between channels occurs at system level via synchronized SPC frames.

Its SPC interface operates with 0.5–1 µs unit time, supports bus-mode up to 4 sensors on one line, embeds status nibble, temperature nibbles, rolling counter, and CRC nibble per frame, and enables post-assembly calibration via single-wire SICI programming on the OUT pin.

Key Specifications

Pinout & Package

PG-SSO-4-1 thin leaded package with branded side marking "99C4S1", Hall probe centered beneath die surface (d = 0.9 mm from top, 0.96 mm from side). CBUF pin supports external decoupling capacitor (optional; float if unused).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel Hall sensor applications.

Compared with TLE4999C4S0001, TLE5012BE1500 offers higher resolution but lacks bus capability and fast SPC framing, while MLX90421 requires external safety integration and provides no on-chip plausibility logic - making TLE4999C4S0001 uniquely suited for compact, ASIL C-compliant, multi-sensor SPC bus designs.

Availability

TLE4999C4S0001 is available at Aetrix Electronics and suitable for automotive pedal position sensing, throttle valve control, and steering torque measurement requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLE4999C4S0001 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 safety-certified sensor solutions.

The TLE4999C4S0001 belongs to Infineon's TLE499x family of programmable Hall sensors designed specifically for ASIL C-compliant position sensing in safety-critical automotive subsystems.

FAQ

What is the maximum number of TLE4999C4S0001 sensors supported on a single SPC bus line?

Up to four TLE4999C4S0001 sensors can be connected on one shared SPC bus line using unique device addressing. Each sensor transmits its main and sub channel data within a deterministic frame window, enabled by the frameholder mechanism and synchronized trigger pulses. Bus termination and pull-up resistor values must be adjusted per total bus capacitance (CL) to maintain signal integrity.

How is calibration performed after PCB assembly?

Calibration is performed post-assembly using the Serial Inspection and Configuration Interface (SICI) via the OUT pin. The sensor accepts commands to write multipoint calibration data (up to 9 points), EEPROM-stored compensation coefficients, and user-defined IDs. No external programming hardware is required - the host microcontroller drives SICI protocol directly on the same pin used for SPC output.

Does the TLE4999C4S0001 require an external capacitor on the CBUF pin?

No external capacitor is mandatory on the CBUF pin. If used, it stabilizes the internal analog regulator; if omitted, the CBUF pin must be left floating - not tied to VDD or GND. Infineon's datasheet explicitly states that improper connection (e.g., shorting CBUF) may degrade performance or cause malfunction.

What safety documentation is provided for ASIL C implementation?

Infineon supplies a PRO-SIL™ Safety Manual and Safety Analysis Summary Report covering FMEDA results, diagnostic coverage metrics, and guidance for integrating the TLE4999C4S0001 as a Safety Element out of Context (SEooC) in ASIL C systems. These documents define fault reaction times, safe states, and required system-level checks - but do not replace full ISO 26262 tool qualification or integration validation by the end customer.