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Infineon Technologies AUIRLR2905ZTRL
- Part No.:
- AUIRLR2905ZTRL
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AUIRLR2905ZTRL.pdf
- Description:
- MOSFET N-CH 55V 42A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:3,273
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Product details
Overview
AUIRLR2905ZTRL from Infineon is an automotive-grade N-channel D-Pak Power MOSFET with 55 V VDS, 13.5 mΩ RDS(on) @ 10 V, 42 A package-limited continuous drain current, and 175°C maximum junction temperature. It serves as a high-efficiency main switch in DC-DC converters, motor control inverters, and battery protection circuits for 12 V/24 V automotive systems.
For engineers reviewing the AUIRLR2905ZTRL datasheet, AUIRLR2905ZTRL pinout, AUIRLR2905ZTRL application, or AUIRLR2905ZTRL equivalent, key selection criteria include its ultra-low on-resistance at 10 V gate drive, robust repetitive avalanche capability (85 mJ tested), fast switching (tr = 130 ns), and AEC-Q101 qualification for under-hood powertrain modules.
Technical Context
This HEXFET® device uses advanced silicon process technology to minimize conduction losses while maintaining thermal stability up to 175°C. Its low RDS(on) of 11–13.5 mΩ at VGS = 10 V enables high-current switching with minimal I²R heating in compact layouts.
The MOSFET supports fast turn-on (td(on) = 14 ns) and turn-off (td(off) = 24 ns) with controlled gate charge (Qg = 23–35 nC), and integrates a robust body diode with trr = 22–33 ns and Qrr = 14–21 nC for synchronous rectification and freewheeling in hard-switched topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 55 V - Withstands transients up to ISO 7637-2 Pulse 5a (load dump) in 12 V automotive systems |
| RDS(on) max | 13.5 mΩ @ VGS = 10 V - Enables ≤ 22 W conduction loss at 42 A, reducing heatsink requirements |
| ID (package) | 42 A @ TC = 25°C - Matches D-Pak thermal limits for PCB-mounted operation without clip |
| EAS tested | 85 mJ - Confirmed unclamped inductive switching capability at IAS = 36 A, L = 89 µH |
| tr/tf | 130 ns / 33 ns - Supports >200 kHz PWM in buck converters with low switching loss |
| TJ max | +175°C - Allows operation in engine bay environments without derating below 150°C ambient |
| Qg | 23–35 nC - Compatible with standard gate drivers (e.g., IR2110, UCC27531) at 10 V drive |
Pinout & Package
Package: D-Pak (TO-252AA), surface-mount, single-sided heat dissipation via exposed drain pad. Thermal resistance RθJC = 1.38°C/W enables direct heatsinking through PCB copper pour.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| G (Gate) | Control input | Receives 10 V logic-level drive; threshold voltage 1.0–3.0 V allows compatibility with 3.3 V microcontrollers via level shift |
| D (Drain) | High-side or low-side power path | Connected to exposed metal tab; must be electrically isolated from heatsink unless referenced to system ground |
| S (Source) | Reference node for gate drive and current sensing | Provides Kelvin connection point for accurate shunt-based current monitoring in motor phase legs |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RDS(on) | 11 mΩ typical @ 10 V - Reduces conduction loss by ≥35% vs. legacy 55 V MOSFETs in 48 V mild-hybrid DC-DC stages |
| 175°C junction rating | Rated for continuous operation at full current up to 150°C ambient - eliminates need for forced air cooling in ECU power supplies |
| Repetitive avalanche rated | Tested to 85 mJ single-pulse and validated for repetitive operation per Fig. 12a–12b - enables robustness against inductive kickback in solenoid drivers |
| Fast body diode | trr = 22 ns, Qrr = 14 nC - Minimizes reverse recovery loss in synchronous buck and half-bridge configurations |
| AEC-Q101 qualified | Validated per automotive stress test standards including HTGB, HTRB, and temperature cycling - ensures reliability in safety-critical ADAS power rails |
Applications
| Engine Control Unit (ECU) Power Stage | Automotive DC-DC Converter |
|---|---|
Use Scenario: High-current 5 V/3.3 V auxiliary rail generation from 12 V battery in engine control modules. IC Role / Device Role / Timing Role: Primary high-side switch in synchronous buck topology operating at 300 kHz. Use Value: 13.5 mΩ RDS(on) reduces full-load conduction loss to <1.5 W, enabling 95% efficiency at 25 A output without heatsink. | Use Scenario: 12 V to 48 V bidirectional converter for 48 V mild-hybrid architectures. IC Role / Device Role / Timing Role: Low-side synchronous rectifier in interleaved two-phase buck-boost stage. Use Value: Fast 22 ns body diode recovery minimizes cross-conduction loss during dead-time, improving light-load efficiency by 4.2%. |
| Electric Power Steering (EPS) Motor Driver | Automotive Battery Disconnect Switch |
Use Scenario: Half-bridge leg driving 3-phase BLDC motor in EPS actuator with peak 60 A phase current. IC Role / Device Role / Timing Role: Low-side switch handling continuous 42 A with pulsed 240 A peaks. Use Value: 175°C rating permits sustained operation at 140°C case temperature during parking assist maneuvers without thermal shutdown. | Use Scenario: Solid-state replacement for mechanical relay in 12 V battery isolation circuit for start-stop systems. IC Role / Device Role / Timing Role: Single-pole, high-current disconnect switch with integrated overcurrent protection interface. Use Value: Repetitive avalanche rating (85 mJ) absorbs inductive energy during hot-plug disconnection, preventing arcing and contact welding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL130N5LF6AG | RDS(on) = 12.5 mΩ @ 10 V; 60 A package limit; same D-Pak; no AEC-Q101 certification | Not qualified for powertrain use; suitable only for infotainment or body electronics | Select only if automotive qualification is not required and lower RDS(on) justifies non-automotive sourcing |
| IRLR8729PBF | RDS(on) = 7.5 mΩ @ 10 V; 79 A package limit; TO-252; AEC-Q101 qualified but higher gate charge (Qg = 42 nC) | Higher conduction efficiency but slower switching and greater driver power demand | Prefer when minimizing I²R loss dominates over switching frequency or gate drive capability |
Compared with STL130N5LF6AG and IRLR8729PBF, AUIRLR2905ZTRL delivers optimal balance of automotive qualification, thermal robustness (175°C), and gate drive efficiency (Qg = 23–35 nC), making it ideal for cost-sensitive yet safety-critical 12 V/24 V power stages where reliability and thermal margin are prioritized over marginal RDS(on) reduction.
Availability
AUIRLR2905ZTRL is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drives, and high-reliability DC-DC conversion requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AUIRLR2905ZTRL 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, with global manufacturing and qualification infrastructure.
AUIRLR2905ZTRL belongs to the AUIR automotive HEXFET® Power MOSFET product line, engineered specifically for high-current, high-temperature switching in engine control, transmission, and ADAS subsystems.
FAQ
What is the maximum continuous drain current for AUIRLR2905ZTRL at 100°C case temperature?
The maximum continuous drain current is 43 A at TC = 100°C and VGS = 10 V, based on silicon-limited rating. This value reflects thermal derating from the 42 A package-limited rating at 25°C, ensuring safe operation within the D-Pak's thermal envelope under elevated ambient conditions.
Does AUIRLR2905ZTRL require a gate resistor for automotive PWM applications?
Yes - a 5–15 Ω gate resistor is recommended to dampen ringing and control dV/dt during switching. The device's 35 nC max gate charge and 12 nC gate-to-drain charge make it susceptible to Miller-induced shoot-through in half-bridge configurations without proper gate drive impedance matching.
Can AUIRLR2905ZTRL be used in synchronous rectification mode?
Yes - its body diode has trr = 22–33 ns and Qrr = 14–21 nC, enabling efficient synchronous rectification in buck and flyback topologies up to 500 kHz. Gate timing must ensure source-to-drain voltage reversal occurs before gate turn-on to avoid reverse conduction loss.
Is the exposed drain pad on the D-Pak package electrically connected to the drain terminal?
Yes - the large metal pad on the bottom of the D-Pak package is internally bonded to the drain terminal and must be soldered to a thermally optimized PCB copper area. Electrical isolation from chassis or heatsink is required unless the drain is at system ground potential.
AUIRLR2905ZTRL 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:
- Not For New Designs
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 55 V
- Current - Continuous Drain (Id) @ 25°C:
- 42A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- -
- Rds On (Max) @ Id, Vgs:
- 13.5mOhm @ 36A, 10V
- Vgs(th) (Max) @ Id:
- 3V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 35 nC @ 5 V
- Vgs (Max):
- -
- Input Capacitance (Ciss) (Max) @ Vds:
- 1570 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 110W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252AA (DPAK)
AUIRLR2905ZTRL FAQ
1.How can I place an order for AUIRLR2905ZTRL through Aetrix?
Please submit a Request for Quotation (RFQ) for AUIRLR2905ZTRL 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 AUIRLR2905ZTRL reliable?
The price and inventory of AUIRLR2905ZTRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRLR2905ZTRL is usually 5 days.
3.What payment methods are accepted for AUIRLR2905ZTRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRLR2905ZTRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AUIRLR2905ZTRL?
AUIRLR2905ZTRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AUIRLR2905ZTRL 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 AUIRLR2905ZTRL?
For technical support, including AUIRLR2905ZTRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRLR2905ZTRL requirements.
6.How does Aetrix verify that AUIRLR2905ZTRL is sourced from the original manufacturer or authorized distributors?
All AUIRLR2905ZTRL 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 AUIRLR2905ZTRL meets industry standards.
7.What is the process for return or replacement of AUIRLR2905ZTRL?
All AUIRLR2905ZTRL units undergo pre-shipment inspection (PSI). If there is an issue with AUIRLR2905ZTRL, 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 AUIRLR2905ZTRL part is unused and in its original packaging.
Return procedure for AUIRLR2905ZTRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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