AUIRF7769L2TR - 100V 3.5mΩ 375A Automotive DirectFET MOSFET | Infineon
MPN: AUIRF7769L2TR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.46 | $7.46 |
| 10 | $6.72 | $67.20 |
| 100 | $5.95 | $595.00 |
| 500 | $5.31 | $2,655.00 |
| 1,000 | $4.78 | $4,780.00 |
Drop-in alternatives for AUIRF7769L2TR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AUIRF7759L2TR
✅ Drop-In📋 Reference alternative (not in catalog)
IRF7759L2TR1PBF
✅ Drop-In📋 Reference alternative (not in catalog)
IRF7759L2TRPBF
✅ Drop-In📋 Reference alternative (not in catalog)
AUIRF7769L2TR Maximum Ratings & Electrical Characteristics
| FET Type | N-Channel |
| Drain-to-Source Voltage (V<sub>DS</sub>) | 100 V |
| Continuous Drain Current (I<sub>D</sub>) at T<sub>C</sub> | 375 A |
| R<sub>DS(on)</sub> at V<sub>GS</sub>=10V | 3.5 mΩ (typical) |
| Power Dissipation at T<sub>C</sub> | 125 W |
| Power Dissipation at T<sub>A</sub> | 3.3 W |
| Package | DirectFET Isometric L8 (DPAK footprint) |
| Profile Height | 0.7 mm |
| Technology | Automotive HEXFET Power MOSFET (trench) |
| Mounting Type | Surface Mount |
| Automotive Qualification | AEC-Q100 qualified |
| RoHS Status | Compliant |
AUIRF7769L2TR directfet isometric l8 (dpak footprint) Pin Configuration Guide
Complete pinout information for AUIRF7769L2TR (directfet isometric l8 (dpak footprint) package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for AUIRF7769L2TR.
Refer to the datasheet for full pin configuration.
Safe Operating Area (DC, T_C = 25°C)
Typical Applications
AUIRF7769L2TR is suitable for 6 applications: 48V Mild-Hybrid DC-DC Converter, Electric Power Steering (EPS) Motor Drive, High-Current OR-ing / Redundant Power, Industrial High-Current Synchronous Rectification, Battery Disconnect Switch (Electric Vehicle), Heavy-Load Hot-Swap / eFuse.
48V Mild-Hybrid DC-DC Converter
The AUIRF7769L2TR's 100V V<sub>DS</sub> rating and 3.5 mΩ R<sub>DS(on)</sub> make it ideal for primary-side switching in 48V mild-hybrid DC-DC converters that step down from 48V bus to 12V auxiliary rails. With 375A continuous current capability and DirectFET L8's dual-side cooling, the part handles >10 kW converter power levels while keeping conduction losses under 1% of throughput. AEC-Q100 qualification supports direct mounting near the inverter or battery junction box without derating.
Recommended
Electric Power Steering (EPS) Motor Drive
High-current EPS motors require MOSFETs that can sustain 200A+ peak currents during steering maneuvers with minimal thermal rise. The AUIRF7769L2TR's 375A T<sub>C</sub> rating provides substantial margin above peak EPS current demands, while the 3.5 mΩ R<sub>DS(on)</sub> keeps I²R losses below 5W even at full assist load. The 0.7 mm DirectFET profile enables mounting inside the tight steering column housing where conventional DPAK parts would not fit.
Recommended
High-Current OR-ing / Redundant Power
In redundant 12V/48V automotive power architectures (dual-battery, eFuse backplane), the AUIRF7769L2TR functions as a low-loss OR-ing switch replacing Schottky diodes. The 3.5 mΩ R<sub>DS(on)</sub> at full 100A load dissipates only 35W versus 70W+ for equivalent Schottky solutions, dramatically reducing heatsink requirements. AEC-Q100 screening and 100V rating support both 12V and 48V bus topologies with full transient margin.
Recommended
Industrial High-Current Synchronous Rectification
Outside automotive, the AUIRF7769L2TR serves as the synchronous FET in high-current buck converters for telecom and server 48V-to-POL rails. The DirectFET L8 package's low package resistance (~0.5 mΩ) adds only marginally to the silicon R<sub>DS(on)</sub>, yielding total loop resistance under 4 mΩ. The 375A rating supports 2-3 kW converter designs where efficiency above 97% is mandatory for thermal management.
Recommended
Battery Disconnect Switch (Electric Vehicle)
In EV battery management systems, the AUIRF7769L2TR enables a solid-state battery disconnect replacing traditional contactors, with 375A continuous rating handling drivetrain peak loads without arcing. The 100V V<sub>DS</sub> covers 48V architectures, and 3.5 mΩ R<sub>DS(on)</sub> keeps voltage drop below 100mV at full load. The DirectFET L8 isometric package withstands the vibration profile of vehicle mounting better than through-contactors.
Recommended
Heavy-Load Hot-Swap / eFuse
The AUIRF7769L2TR serves as the main pass element in 48V hot-swap controllers where inrush currents can exceed 500A during board insertion. The 375A continuous rating and 3.5 mΩ R<sub>DS(on)</sub> minimize dissipation during normal operation, while the DirectFET L8 dual-cooling package supports the high transient dissipation during SOA-limited inrush events. AEC-Q100 compliance supports deployment in chassis-mounted automotive ECUs.
Recommended
Recommended Products Summary
Engineering reference data for AUIRF7769L2TR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AUIRF7759L2TR | IRF7759L2TR1PBF | IRF7759L2TRPBF |
|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | DirectFET Isometric L8 | DirectFET Isometric L8 - same | DirectFET Isometric L8 - same | DirectFET Isometric L8 - same |
| Drain-to-Source Voltage (V_DS) | 100 V | 100 V | 100 V | 100 V |
| Continuous Drain Current (I_D at T_C) | 375 A | 240 A | 240 A | 240 A |
| R_DS(on) at V_GS=10V (max) | 3.5 mΩ | 4.7 mΩ | 4.7 mΩ | 4.7 mΩ |
| Power Dissipation (T_C) | 125 W | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Automotive Qualification (AEC-Q100) | Yes | Yes | No (industrial) | No (industrial) |
| Profile Height | 0.7 mm | 0.7 mm | 0.7 mm | 0.7 mm |
| Technology | HEXFET (trench) | HEXFET (trench) | HEXFET (trench) | HEXFET (trench) |
Key Differentiators
- Highest continuous drain current in DirectFET L8 family (vs AUIRF7759L2TR)
- Lowest R_DS(on) at 100V V_DS in DPAK-compatible footprint (vs IRF7759L2TR1PBF)
- True automotive qualification at peak current rating (vs IRF7759L2TRPBF)
Design Notes
The DirectFET L8 isometric package requires direct solder attachment of both the bottom source pad and the top drain tab to PCB copper for optimal thermal performance. Thermal vias (0.3 mm drill, 1.0 mm pitch, filled) under the source pad reduce junction-to-ambient thermal resistance to below 20°C/W. Estimated: at 100A continuous load with 3.5 mΩ R<sub>DS(on)</sub>, conduction loss is ~35W; without 4-layer copper pours this would exceed 100°C junction temperature rise, demanding active cooling.
DirectFET L8 minimizes parasitic inductance versus DPAK because the source connection is the entire bottom metal pad rather than a wire bond. To exploit this, keep the gate-drive return path directly over the source pad - route the gate-drive ground on an inner layer or the opposite side of the source pad, never share the source-return path with the high-current source bus. Recommended gate-drive resistor is 10Ω for switching frequencies of 50-200 kHz, with a 100kΩ pull-down to prevent false turn-on during dv/dt events.
The DirectFET L8 land pattern is DPAK (TO-252AA) compatible, but the top-side drain tab requires an additional copper pad on the opposite side of the PCB (or an inner layer with thermal vias). Solder paste stencil apertures for the bottom pads should be 0.15 mm thick to avoid solder voiding under the high-thermal-mass source pad. IPC-7092 process guidelines for bottom-pad-only packages should be followed during assembly to maintain >90% solder joint reliability.
Do not attempt to substitute a DPAK MOSFET directly into a DirectFET L8 land pattern - the top-side drain tab of the AUIRF7769L2TR must be soldered or the part will fail thermally. Also avoid exceeding the linear-mode safe operating area during inrush events; while the SOA curve allows 12A at 50V (T<sub>C</sub>=25°C DC), the same point at T<sub>C</sub>=125°C drops to ~6A. Always consult the datasheet SOA curves before designing hot-swap or short-circuit protection circuits.
Compliance Information
AEC-Q100 qualified per Infineon automotive grade designation (AU prefix). RoHS and REACH compliant per Infineon product page. Lead-free and halogen-free packaging.
