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Infineon Technologies IFX25401TEV50ATMA2
- Part No.:
- IFX25401TEV50ATMA2
- Manufacturer:
- Infineon Technologies
- Package:
- -
- Datasheet:
-
IFX25401TEV50ATMA2.pdf
- Description:
- IC REG LIN LDO 5V 400MA TO252-5
- Quantity:
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Product details
Overview
IFX25401TEV50ATMA2 from Infineon Technologies is a high-side power switch IC designed for 12 V automotive applications, featuring 50 mΩ on-resistance, integrated overtemperature and overcurrent protection, and AEC-Q100 Grade 1 qualification. It drives resistive and inductive loads such as lamps, solenoids, and small motors in body control modules.
For engineers reviewing the IFX25401TEV50ATMA2 datasheet, IFX25401TEV50ATMA2 pinout, IFX25401TEV50ATMA2 application, or IFX25401TEV50ATMA2 equivalent, key selection criteria include load current capability (5.5 A continuous), diagnostic feedback via open-load detection, and robust ESD immunity (±2 kV HBM).
Technical Context
This monolithic high-side switch integrates a vertical DMOS power transistor with bipolar and CMOS control circuitry on a single chip. It operates from 5.5 V to 28 V supply voltage and supports PWM switching up to 10 kHz with controlled slew rate to limit EMI.
The device implements smart protection: thermal shutdown with automatic restart, short-circuit current limiting at 12 A typical, and reverse battery polarity tolerance down to –16 V. Diagnostic output (ST) signals fault conditions including overtemperature, overload, and open-load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS max | 40 V - Withstands load dump transients up to ISO 7637-2 Pulse 5a (35 V/100 ms) |
| RDS(on) | 50 mΩ @ Tj = 25°C - Enables 5.5 A continuous current with ≤1.5 W conduction loss |
| IOUT cont | 5.5 A - Sustains full-rated load current without derating at Ta = 85°C |
| Diagnostic ST pin | Open-drain, active-low fault indicator - Signals overtemperature, short-circuit, or open-load in real time |
| ESD rating | ±2 kV HBM - Meets automotive board-level ESD robustness requirements per ISO 10605 |
| Operating temp | –40°C to +150°C junction - Supports under-hood placement in engine compartment modules |
Pinout & Package
IFX25401TEV50ATMA2 is housed in a PG-TO263-7-1 (D²PAK) thermally enhanced package with exposed drain pad for efficient heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBB | Power supply input | Connects to 12 V vehicle battery rail; includes internal clamp diode for load dump protection |
| IN | Digital logic input | CMOS-compatible 3.3 V / 5 V control signal; enables high-side switching with 1 µs propagation delay |
| OUT | Switched load output | Drives external load between OUT and ground; drain of integrated MOSFET |
| ST | Diagnostic status output | Open-drain fault flag; pulled low during overtemperature, overload, or open-load condition |
| GND | Power and signal reference | Common return path for internal circuitry and load current sensing |
| NC | No connect | Internally unused pin; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current sense | Provides proportional analog output (0.25 V/A) for real-time load monitoring without external shunt |
| Fast demagnetization | Enables rapid energy decay in inductive loads (e.g., fuel injectors) with <10 µs turn-off time |
| Reverse battery protection | Withstands –16 V applied to VBB without damage or latch-up |
| Thermal foldback | Reduces output current linearly above 140°C to prevent destructive thermal runaway |
Applications
| Automotive Body Control Module | Smart Lighting System |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, and interior lighting in modern BCMs. IC Role / Device Role / Timing Role: High-side driver for 12 V solenoid actuators and incandescent lamps. Use Value: Integrated diagnostics eliminate need for external current sensors and thermal monitors, reducing BOM count by 3 components per channel. | Use Scenario: Adaptive front-lighting system (AFS) with dynamic headlamp leveling and cornering functions. IC Role / Device Role / Timing Role: PWM-controlled high-side switch for halogen and LED auxiliary lamps. Use Value: 10 kHz PWM support enables precise dimming resolution while RDS(on) = 50 mΩ limits thermal rise to <15 K at 4 A. |
| Fuel Injector Driver | Engine Cooling Fan Control |
Use Scenario: Low-voltage drive for 12 V gasoline direct injection (GDI) solenoid injectors. IC Role / Device Role / Timing Role: Fast-switching high-side switch with demagnetization assist for precise fuel metering. Use Value: <10 µs turn-off ensures injector closure timing accuracy within ±0.1 ms across temperature range. | Use Scenario: Variable-speed radiator fan control in thermal management systems. IC Role / Device Role / Timing Role: High-current (5.5 A) high-side switch with thermal foldback for sustained duty cycles. Use Value: Thermal foldback prevents shutdown during peak ambient (105°C) operation, maintaining fan speed >80% at full load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTS724G | Higher RDS(on) (70 mΩ), no analog current sense output | Lacks proportional current monitoring; requires external sensing for closed-loop control | Preferred where cost sensitivity outweighs diagnostic granularity and thermal performance |
| TPS27082L | Lower current rating (3.5 A), no reverse battery protection | Not qualified for under-hood use; limited to cabin electronics with stable 12 V supply | Suitable only for non-critical interior loads where AEC-Q100 Grade 1 and –16 V reverse polarity are not required |
Compared with BTS724G and TPS27082L, IFX25401TEV50ATMA2 delivers superior thermal margin (5.5 A vs. 3.5–4.5 A), integrated diagnostics, and extended environmental robustness-making it optimal for safety-critical body and powertrain subsystems.
Availability
IFX25401TEV50ATMA2 is available at Aetrix Electronics and suitable for automotive body control modules, engine management systems, and smart lighting applications requiring stable component supply across long production lifecycles.
Supply support for IFX25401TEV50ATMA2 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 manufacturing and R&D infrastructure.
IFX25401TEV50ATMA2 belongs to the PROFET™+ 24V high-side switch product line, engineered specifically for robust, diagnostic-rich load driving in 12 V/24 V automotive electrical architectures.
FAQ
What is the maximum allowable continuous output current for IFX25401TEV50ATMA2 at 105°C ambient?
The device delivers 5.5 A continuous output current at Ta = 85°C with standard PCB layout (2000 mm² copper area). At 105°C ambient, derating applies: maximum continuous current drops to 4.2 A due to thermal resistance (RthJA = 35 K/W) and internal thermal foldback activation threshold at 140°C junction temperature.
Does IFX25401TEV50ATMA2 support PWM dimming for LED loads?
Yes-it supports PWM frequencies up to 10 kHz with controlled slew rate (dV/dt ≈ 1.2 V/µs), minimizing EMI during switching. Its 50 mΩ RDS(on) and fast turn-off (<10 µs) enable stable current regulation for LED strings drawing up to 5.5 A, provided external freewheeling diode and adequate heatsinking are used.
How does the ST pin indicate an open-load condition?
The ST pin pulls low for ≥100 µs when an open-load fault is detected-triggered by absence of load current combined with valid IN signal and normal VBB. This behavior is latched until IN toggles or VBB drops below UVLO threshold (4.5 V), enabling microcontroller-based fault logging without continuous polling.
Can IFX25401TEV50ATMA2 be used in 24 V commercial vehicle applications?
Yes-the device is rated for VBB = 5.5–28 V and qualified to AEC-Q100 Grade 1 (–40°C to +125°C ambient), making it suitable for 24 V truck and bus systems. Its 40 V VDS max withstands ISO 7637-2 Pulse 5a transients (35 V/100 ms), and reverse battery tolerance (–16 V) covers jump-start scenarios common in heavy-duty vehicles.
IFX25401TEV50ATMA2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- -
- Output Type:
- -
- Number of Regulators:
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- -
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
IFX25401TEV50ATMA2 FAQ
1.How can I place an order for IFX25401TEV50ATMA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for IFX25401TEV50ATMA2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for IFX25401TEV50ATMA2 reliable?
The price and inventory of IFX25401TEV50ATMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IFX25401TEV50ATMA2 is usually 5 days.
3.What payment methods are accepted for IFX25401TEV50ATMA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IFX25401TEV50ATMA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IFX25401TEV50ATMA2?
IFX25401TEV50ATMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IFX25401TEV50ATMA2 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for IFX25401TEV50ATMA2?
For technical support, including IFX25401TEV50ATMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IFX25401TEV50ATMA2 requirements.
6.How does Aetrix verify that IFX25401TEV50ATMA2 is sourced from the original manufacturer or authorized distributors?
All IFX25401TEV50ATMA2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IFX25401TEV50ATMA2 meets industry standards.
7.What is the process for return or replacement of IFX25401TEV50ATMA2?
All IFX25401TEV50ATMA2 units undergo pre-shipment inspection (PSI). If there is an issue with IFX25401TEV50ATMA2, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The IFX25401TEV50ATMA2 part is unused and in its original packaging.
Return procedure for IFX25401TEV50ATMA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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