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Infineon Technologies AUIRFR4105TRL
- Part No.:
- AUIRFR4105TRL
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AUIRFR4105TRL.pdf
- Description:
- MOSFET N-CH 55V 20A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:5,017
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Product details
Overview
AUIRFR4105TRL from Infineon is an automotive-grade N-channel D-Pak (TO-252AA) HEXFET® Power MOSFET with 55 V V(BR)DSS, 45 mΩ max RDS(on) at VGS = 10 V and ID = 16 A, 175°C maximum junction temperature, and fully rated repetitive avalanche capability up to TJmax. It serves as a high-efficiency, ruggedized main or synchronous rectifier switch in DC-DC converters, motor drivers, and load management circuits within engine control units and body electronics.
For engineers reviewing the AUIRFR4105TRL datasheet, AUIRFR4105TRL pinout, AUIRFR4105TRL application, or AUIRFR4105TRL equivalent, key selection criteria include its package-limited 20 A continuous drain current, 34 nC total gate charge, 1.6 V body diode forward voltage at 16 A, dynamic dV/dT rating, and automotive qualification per AEC-Q101 standards.
Technical Context
This MOSFET employs advanced planar silicon processing to achieve low on-resistance per die area while maintaining robust avalanche performance. Its gate threshold voltage (2.0–4.0 V) and transconductance (6.5 S typical) support reliable turn-on under wide-range automotive supply conditions, including cold-crank scenarios down to 6 V.
The device integrates a fast-recovery body diode (trr = 57–86 ns, Qrr = 130–200 nC) and exhibits low internal inductance (LD = 4.5 nH, LS = 7.5 nH), enabling stable high-frequency switching in buck and half-bridge topologies up to several hundred kHz without oscillation or shoot-through risk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| V(BR)DSS | 55 V - Withstands transient overvoltages up to 55 V in automotive 12 V systems without breakdown. |
| RDS(on) max | 45 mΩ @ VGS = 10 V, ID = 16 A - Enables <1.2 W conduction loss at 16 A, critical for thermal management in sealed ECUs. |
| ID (Package Limited) | 20 A @ TC = 25°C - Defines maximum continuous current under standard PCB-mount thermal conditions. |
| EAS Tested | 16 mJ - Verified single-pulse avalanche energy supports unclamped inductive switching in relay/motor drive fault recovery. |
| Qg | 34 nC - Determines gate driver power requirement and switching speed; compatible with low-power automotive gate drivers. |
| VSD max | 1.6 V @ TJ = 25°C, IS = 16 A - Low body diode forward drop reduces reverse conduction losses in synchronous rectification. |
| RθJC | 2.2 °C/W - Enables direct heatsink mounting for high-power operation; junction-to-case thermal path is well-defined and repeatable. |
Pinout & Package
D-Pak (TO-252AA) package with exposed drain pad for thermal and electrical connection; surface-mount, single-row 3-pin configuration optimized for automated assembly and high-current PCB routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Source) | Source terminal (S) | Reference node for gate drive; tied to ground or low-side return path in most applications. |
| Pin 2 (Gate) | Control input (G) | High-impedance MOSFET gate requiring <34 nC charge for full enhancement; sensitive to ESD. |
| Pin 3 (Drain) | Power output (D) | Connected to high-side rail or inductive load; electrically and thermally coupled to exposed copper pad. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q101 qualified - Validated for operation across -55°C to +175°C junction range in safety-critical vehicle subsystems. |
| Fully avalanche rated | Repetitive avalanche allowed up to TJmax - Eliminates need for external snubbers in inductive load switching. |
| Dynamic dV/dT rating | Specified and tested - Ensures immunity to false turn-on during high-slew-rate voltage transients common in automotive environments. |
| Low RDS(on) × Qg figure of merit | ~1.5 Ω·nC - Balances conduction and switching losses for high-efficiency 100–300 kHz DC-DC stages. |
Applications
| Engine Control Unit (ECU) Fuel Injector Driver | Automotive DC-DC Converter Primary Switch |
|---|---|
Use Scenario: High-speed, high-reliability switching of 12 V fuel injectors with peak currents up to 16 A and pulse widths <2 ms. IC Role / Device Role / Timing Role: Main N-channel power switch controlling injector coil energization and de-energization. Use Value: 45 mΩ RDS(on) limits resistive heating during long-duration pulses; 175°C rating ensures operation under hood temperatures exceeding 125°C ambient. | Use Scenario: Primary-side switch in 12 V to 5 V/3.3 V synchronous buck converter powering ADAS sensors and microcontrollers. IC Role / Device Role / Timing Role: High-side power MOSFET operating at 250 kHz with 34 nC gate charge enabling efficient gate drive. Use Value: Low Qgd (14 nC) minimizes Miller-induced delay; body diode trr <86 ns enables clean synchronous rectification with minimal reverse recovery loss. |
| Body Control Module (BCM) Load Management | Electric Power Steering (EPS) Motor Phase Switch |
Use Scenario: Solid-state replacement for mechanical relays controlling headlights, HVAC fans, and window lift motors. IC Role / Device Role / Timing Role: Low-side load switch with integrated protection against inductive kickback and load dump. Use Value: Fully rated repetitive avalanche (5.0 mJ EAR) absorbs energy from inductive loads without external clamping diodes. | Use Scenario: Half-bridge phase leg switch in 12 V EPS motor driver handling bidirectional 20 A peak currents. IC Role / Device Role / Timing Role: Robust N-channel MOSFET used in low-side position with fast body diode for freewheeling. Use Value: 1.6 V VSD and 130–200 nC Qrr reduce freewheeling losses and EMI during PWM commutation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel automotive power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL220N4F7AG | 40 V V(BR)DSS, 2.2 mΩ RDS(on), 220 A ID - lower voltage, much lower RDS(on), larger D²PAK package | Targeted at 48 V mild-hybrid systems; not suitable for 55 V surge margin in 12 V architectures | Select only if system max VDS ≤ 40 V and board space allows D²PAK footprint. |
| IPB180N04S4-02 | 40 V V(BR)DSS, 1.8 mΩ RDS(on), 180 A ID - higher current, lower voltage, TSDSON package | Optimized for compact, high-current 48 V applications; lacks 55 V surge headroom and AEC-Q101 test report alignment with AUIRFR4105 | Prefer for new 48 V designs; avoid in legacy 12 V systems requiring 55 V breakdown margin. |
Compared with STL220N4F7AG and IPB180N04S4-02, the AUIRFR4105TRL uniquely satisfies 12 V automotive systems needing 55 V breakdown margin, D-Pak thermal interface compatibility, and proven AEC-Q101 compliance at 20 A continuous load - making it irreplaceable in cost- and space-constrained ECU and BCM designs.
Availability
AUIRFR4105TRL is available at Aetrix Electronics and suitable for engine control units, body control modules, DC-DC converters, and electric power steering systems requiring stable component supply across extended automotive product lifecycles.
Supply support for AUIRFR4105TRL 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 industrial control ICs and discrete devices.
The AUIRFR4105 belongs to Infineon's automotive-qualified HEXFET® Power MOSFET product line, engineered specifically for high-reliability switching in harsh-temperature, high-vibration vehicle subsystems.
FAQ
Is AUIRFR4105TRL pin-compatible with non-automotive IRFR4105?
No. While both share the D-Pak package and identical pinout (G-S-D), AUIRFR4105TRL is AEC-Q101 qualified with tighter parametric screening, enhanced process controls, and guaranteed 175°C operation. The commercial IRFR4105 lacks automotive qualification, has wider parameter spreads, and is not approved for safety-critical vehicle functions.
What is the maximum recommended PCB copper area for thermal performance?
Per Infineon AN-994, a minimum 1" × 1" (25.4 mm × 25.4 mm) FR-4 PCB copper pour connected to the exposed drain pad is required to achieve the specified RθJA = 50 °C/W. Larger copper areas or internal planes further reduce thermal resistance but must maintain solder mask clearance around the pad per IPC-7351B.
Does AUIRFR4105TRL require a gate resistor for automotive ESD protection?
Yes. A series gate resistor (typically 10–47 Ω) is mandatory to limit peak gate current during ISO 10605 ESD events and dampen potential gate ringing caused by PCB trace inductance. This resistor also slows turn-on slightly, reducing EMI and preventing cross-conduction in half-bridge configurations.
Can AUIRFR4105TRL be used in linear mode (e.g., active current limiting)?
No. Although rated for 175°C junction temperature, the device is not characterized for safe operating area (SOA) in linear mode beyond brief pulses. Its SOA curve (Fig. 8) shows severe derating above 10 V VDS at >1 A, making it unsuitable for sustained analog regulation or electronic fuse applications.
AUIRFR4105TRL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HEXFET®
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 55 V
- Current - Continuous Drain (Id) @ 25°C:
- 20A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- -
- Rds On (Max) @ Id, Vgs:
- 45mOhm @ 16A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 34 nC @ 10 V
- Vgs (Max):
- -
- Input Capacitance (Ciss) (Max) @ Vds:
- 700 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 68W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252AA (DPAK)
AUIRFR4105TRL FAQ
1.How can I place an order for AUIRFR4105TRL through Aetrix?
Please submit a Request for Quotation (RFQ) for AUIRFR4105TRL 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 AUIRFR4105TRL reliable?
The price and inventory of AUIRFR4105TRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRFR4105TRL is usually 5 days.
3.What payment methods are accepted for AUIRFR4105TRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRFR4105TRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AUIRFR4105TRL?
AUIRFR4105TRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AUIRFR4105TRL 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 AUIRFR4105TRL?
For technical support, including AUIRFR4105TRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRFR4105TRL requirements.
6.How does Aetrix verify that AUIRFR4105TRL is sourced from the original manufacturer or authorized distributors?
All AUIRFR4105TRL 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 AUIRFR4105TRL meets industry standards.
7.What is the process for return or replacement of AUIRFR4105TRL?
All AUIRFR4105TRL units undergo pre-shipment inspection (PSI). If there is an issue with AUIRFR4105TRL, 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 AUIRFR4105TRL part is unused and in its original packaging.
Return procedure for AUIRFR4105TRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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