Infineon Technologies IFX27001TFV50ATMA1

Overview

IFX27001TFV50ATMA1 from Infineon Technologies is a high-side power switch IC designed for 12 V automotive load control, featuring 50 mΩ on-resistance, 60 V drain-source voltage rating, and integrated overtemperature and overcurrent protection. It drives resistive, inductive, and capacitive loads in body electronics modules such as seat control, mirror adjustment, and HVAC actuators.

For engineers reviewing the IFX27001TFV50ATMA1 datasheet, IFX27001TFV50ATMA1 pinout, IFX27001TFV50ATMA1 application, or IFX27001TFV50ATMA1 equivalent, key selection criteria include R_DS(on) at 25°C, fault reporting via open-drain diagnostic output, thermal shutdown threshold, and AEC-Q100 qualification status.

Technical Context

The IFX27001TFV50ATMA1 integrates a vertical DMOS transistor with analog current sensing, digital logic for fault detection, and a dedicated diagnostic output (nFAULT) that pulls low during overtemperature, overcurrent, or short-circuit events. Its internal charge pump enables full enhancement of the MOSFET gate from a 5 V logic supply.

It operates across -40 °C to +150 °C ambient temperature and supports PWM switching up to 10 kHz. The device implements cycle-by-cycle current limiting with adjustable trip threshold via external resistor on the IS pin, and features undervoltage lockout below 4.5 V.

Key Specifications

Pinout & Package

IFX27001TFV50ATMA1 is housed in a PG-TO263-7-1 (D²PAK) thermally enhanced package with exposed drain pad for PCB heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BTS724G and TPS27081A, IFX27001TFV50ATMA1 uniquely combines AEC-Q100 Grade 1 qualification, 10 A continuous current, and analog current sense in D²PAK - making it optimal for thermally demanding, safety-critical body electronics.

Availability

IFX27001TFV50ATMA1 is available at Aetrix Electronics and suitable for automotive body electronics, HVAC actuation, and seat control systems requiring stable component supply and long-term lifecycle support.

Supply support for IFX27001TFV50ATMA1 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 security solutions.

The IFX27001 belongs to Infineon's PROFET+ family of smart high-side switches, engineered specifically for robust, diagnostic-rich load control in 12 V automotive electrical architectures.

FAQ

What is the maximum allowable junction temperature for continuous operation?

The IFX27001TFV50ATMA1 has a maximum junction temperature of +175 °C, with thermal shutdown activating at this threshold. Continuous operation is rated up to +150 °C junction temperature under specified thermal conditions (PCB copper area ≥ 10 cm², 2 oz Cu). Derating curves in the datasheet define safe current limits above +100 °C ambient.

Does the IS pin require external filtering for accurate current measurement?

Yes - the IS pin output is an analog voltage proportional to load current (100 mV/A) and contains switching noise. Infineon recommends a 100 nF ceramic capacitor placed within 5 mm of the IS pin to ground, plus optional RC low-pass filtering (e.g., 10 kΩ + 100 nF) for ADC interfacing. Layout guidelines specify tight routing and separation from noisy power traces.

Can IFX27001TFV50ATMA1 drive inductive loads without external flyback diodes?

No - although the device includes internal clamp circuitry for energy recirculation during turn-off, external freewheeling diodes are mandatory for inductive loads exceeding 100 mH or operating above 1 A. The internal clamp is rated for limited energy absorption; external Schottky diodes (e.g., STPS20L45C) ensure reliable suppression of voltage spikes beyond 60 V.

How does the nFAULT pin behave during undervoltage lockout?

During undervoltage lockout (V_S < 4.5 V), the nFAULT pin is actively pulled low regardless of load condition - signaling a supply-related fault to the host controller. This behavior is distinct from overtemperature or overcurrent faults, which assert nFAULT only after startup. The pin remains low until V_S rises above 4.7 V and internal reset completes (~100 µs).