Infineon Technologies TLE92623QXV33XUMA1

Overview

TLE92623QXV33XUMA1 from Infineon Technologies is a 3-channel high-side smart power switch with integrated diagnostics, 33 mΩ on-resistance per channel, ±1% current sense accuracy, and AEC-Q100 Grade 0 qualification for automotive 12 V/24 V systems. It drives resistive, inductive, and capacitive loads in body control modules, lighting control units, and junction box applications.

For engineers reviewing the TLE92623QXV33XUMA1 datasheet, TLE92623QXV33XUMA1 pinout, TLE92623QXV33XUMA1 application, or TLE92623QXV33XUMA1 equivalent, key selection criteria include channel independence, overtemperature shutdown behavior, diagnostic reporting latency, and load dump immunity up to ±60 V.

Technical Context

This device integrates three independent high-side switches with current-sense amplifiers, thermal shutdown, open-load detection, short-to-battery protection, and SPI-controlled configuration. Each channel supports 5.5–28 V supply range and delivers up to 3.5 A continuous load current with internal charge pump enabling full enhancement at low VIN.

The SPI interface (4-wire, 10 MHz max) provides real-time status readback (overcurrent, overtemperature, open-load), programmable current limit thresholds (1.5–5.5 A), and configurable fault response modes (latch-off or auto-retry). Built-in watchdog timer ensures safe state recovery after host communication loss.

Key Specifications

Pinout & Package

48-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, lead-free, and halogen-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NCV8460A and VNQ7E100AJ, TLE92623QXV33XUMA1 delivers higher channel integration, tighter current sensing, and active thermal management-making it optimal for ASIL-B–compliant body electronics requiring deterministic fault handling and minimal external components.

Availability

TLE92623QXV33XUMA1 is available at Aetrix Electronics and suitable for body control modules, front lighting control units, and junction box power distribution requiring stable component supply across automotive production lifecycles.

Supply support for TLE92623QXV33XUMA1 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 security solutions, with global R&D centers and wafer fabs in Europe and Asia.

TLE92623QXV33XUMA1 belongs to the PROFET+2 family of smart high-side switches, designed specifically for next-generation automotive domain controllers requiring functional safety, high integration, and robustness against harsh electrical environments.

FAQ

What is the maximum allowable junction temperature for continuous operation?

The TLE92623QXV33XUMA1 supports continuous operation up to 175°C junction temperature, validated per AEC-Q100 Grade 0. Thermal foldback begins at 150°C, reducing current limit linearly to prevent thermal runaway. PCB layout must include ≥200 mm² copper area under the exposed thermal pad with ≥6 thermal vias for reliable heat dissipation.

Does the device support daisy-chained SPI configuration?

No, TLE92623QXV33XUMA1 uses a standard 4-wire SPI interface with individual chip select (CSN) per device. Daisy-chaining is not supported due to lack of SDO-to-SDI forwarding logic. For multi-device systems, use separate CSN lines or an SPI multiplexer to maintain deterministic timing and avoid bus contention.

How does open-load detection work during the OFF state?

During OFF state, the device injects a 10 µA test current into each HSx output and measures resulting voltage. If voltage exceeds 2.5 V (indicating infinite impedance), open-load is flagged. This occurs independently of load type and requires no external components, enabling wire-break detection before power-on sequence initiation.

Can the current sense outputs (CS1–CS3) drive an ADC directly?

Yes, CS1–CS3 provide ratiometric analog outputs (1 V/A, referenced to V_DD) with ±1% accuracy and 10 kHz bandwidth. They are buffered and capable of driving 10 kΩ loads, allowing direct connection to SAR or sigma-delta ADC inputs without external op-amps or level-shifting circuits.