Infineon Technologies TLE4998P3CE1200HAMA1

Overview

TLE4998P3CE1200HAMA1 from Infineon Technologies is a programmable linear Hall-effect sensor IC with PWM open-drain output, 12-bit resolution, ±200 mT magnetic range, digital temperature compensation, and EEPROM-based configuration for gain, offset, clamping, and PWM frequency. It operates from 4.5–5.5 V supply and targets automotive pedal position, throttle valve, and current sensing applications.

For engineers reviewing the TLE4998P3CE1200HAMA1 datasheet, TLE4998P3CE1200HAMA1 pinout, TLE4998P3CE1200HAMA1 application, or TLE4998P3CE1200HAMA1 equivalent, key selection criteria include its programmable magnetic sensitivity (±200 mT full-scale), 20-bit internal DSP processing, digital second-order temperature compensation, open-drain PWM output compatibility with 3.3 V microcontrollers, and integrated reverse-polarity/overvoltage protection.

Technical Context

The TLE4998P3CE1200HAMA1 implements a chopped Hall sensor with continuous-time A/D conversion to minimize magnetic offset drift, coupled with a 16-bit DSP core performing real-time digital temperature compensation using second-order coefficients stored in EEPROM. Its signal chain includes a programmable low-pass filter and digital clamping before PWM encoding.

It delivers a duty-cycle-modulated rectangular output where 0% duty cycle corresponds to –200 mT and 100% to +200 mT, with PWM frequency selectable between 122 Hz and 1953 Hz. The open-drain output requires an external pull-up resistor, enabling level-shifting to receivers operating at lower supply voltages such as 3.3 V.

Key Specifications

Pinout & Package

Package: PG-SSO-3-92 - surface-mount, 3-pin single-sided lead frame package with integrated 47 nF (VDD–GND) and 4.7 nF (OUT–GND) capacitors for EMC robustness.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable linear Hall sensor applications.

Compared with MLX90393 and A1324, the TLE4998P3CE1200HAMA1 uniquely combines EEPROM-programmable PWM output, second-order digital temperature compensation, and integrated EMC capacitors-making it optimal for ASIL-B automotive subsystems requiring self-contained, field-calibratable, and noise-immune position feedback without host processor dependency.

Availability

TLE4998P3CE1200HAMA1 is available at Aetrix Electronics and suitable for automotive pedal position sensing, throttle valve monitoring, steering angle detection, and battery current sensing requiring stable component supply across long production lifecycles.

Supply support for TLE4998P3CE1200HAMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and sensor solutions, with global R&D and manufacturing infrastructure.

The TLE4998P3CE1200HAMA1 belongs to Infineon's TLE499x programmable Hall sensor family, designed specifically for high-accuracy, EMC-robust, and ASIL-compliant position and current sensing in automotive powertrain and chassis systems.

FAQ

What is the function of the two integrated capacitors in the PG-SSO-3-92 package?

The 47 nF capacitor between VDD and GND suppresses supply-line noise and improves ripple rejection, while the 4.7 nF capacitor from OUT to GND filters high-frequency switching noise on the PWM output. Both are laser-trimmed on the lead frame to meet AEC-Q100 Grade 0 EMC requirements without requiring external components.

How is programming performed on the TLE4998P3CE1200HAMA1 without dedicated programming pins?

Programming uses the existing VDD and OUT pins via a pulse-width modulation protocol: specific voltage pulse sequences on VDD initiate programming mode, and bidirectional data exchange occurs through controlled timing of OUT pull-down events. No additional pins or debug interfaces are needed.

Does the TLE4998P3CE1200HAMA1 support functional safety standards like ISO 26262?

Yes-it includes on-chip diagnostics such as EEPROM CRC checking, supply overvoltage detection, and memory lock status reporting. These features enable ASIL-B compliance when integrated into a properly architected system with redundant monitoring and fault-handling logic.

Can the PWM output drive a 3.3 V microcontroller input directly?

Yes-the open-drain output allows connection of the external pull-up resistor to the microcontroller's 3.3 V supply rail. This ensures logic-high levels remain compatible with 3.3 V I/O thresholds while maintaining full 12-bit resolution and monotonicity across temperature.