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Infineon Technologies IRF2805LPBF
- Part No.:
- IRF2805LPBF
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Datasheet:
-
IRF2805LPBF.pdf
- Description:
- MOSFET N-CH 55V 135A TO262
- Quantity:
- Payment:
- Shipping:
Inventory:6,671
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Product details
Overview
IRF2805LPBF from Infineon Technologies (formerly International Rectifier) is a 55V, 135A N-channel D2PAK-7L HEXFET® Power MOSFET with 4.7 mΩ RDS(on) at VGS = 10 V, 175°C maximum junction temperature, and 380 mJ single-pulse avalanche energy. It serves as a high-current, low-loss main switch in DC-DC converters, motor drives, and UPS systems.
For engineers reviewing the IRF2805LPBF datasheet, IRF2805LPBF pinout, IRF2805LPBF application, or IRF2805LPBF equivalent, key selection factors include its 700 A pulsed drain current capability, 1.3 W/°C thermal derating, fast 120 ns rise time, and validated repetitive avalanche operation up to TJmax.
Technical Context
This device employs advanced planar silicon processing to achieve ultra-low on-resistance per die area while maintaining robust unclamped inductive switching performance. Its 175°C rated junction temperature enables high-power density designs without forced cooling in many industrial applications.
The MOSFET features a fast-switching gate structure with 150 nC typical total gate charge and 52 nC Miller charge, supporting efficient hard-switched topologies. The integrated body diode exhibits 1.3 V forward voltage at 104 A and 80–120 ns reverse recovery time, enabling synchronous rectification and freewheeling roles in half-bridge configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 55 V - Maximum blocking voltage for 48 V bus-level power stages |
| RDS(on) | 4.7 mΩ max @ VGS = 10 V, ID = 104 A - Enables ≤0.5 W conduction loss at 100 A |
| ID (TC = 25°C) | 135 A continuous - Supports high-current output stages without parallel devices |
| EAS | 380 mJ single-pulse - Allows safe operation under unclamped inductive turn-off transients |
| tr/tf | 120 ns / 110 ns - Reduces switching losses in 100–200 kHz SMPS designs |
| Qg | 150 nC typical - Matches standard gate drivers (e.g., IR2110, UCC27531) without excessive drive power |
| RθJC | 0.75 °C/W - Enables direct heatsink mounting with <1°C/W thermal path for 200 W dissipation |
Pinout & Package
IRF2805LPBF uses the D2PAK-7L (TO-263-7L) surface-mount package with exposed drain pad for thermal and electrical connection. The 7-pin configuration includes three source pins, one gate pin, and three drain terminals (including the backside thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (G) | Gate | Control input; requires 10 V for full enhancement; 200 nA leakage at ±20 V |
| Pins 2, 3, 4 (S) | Source | Power return path; three parallel pins reduce source inductance and improve current sharing |
| Pins 5, 6, 7 (D) + Backside Pad | Drain | Main power output terminal; backside metal pad must be soldered to PCB copper for thermal and current conduction |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RDS(on) | 3.9 mΩ typical at 10 V - Delivers >98% efficiency in 48 V/100 A buck converters |
| 175°C junction rating | Rated continuous operation up to 175°C - Eliminates derating in sealed enclosures with ambient up to 105°C |
| Repetitive avalanche capability | Tested to 1220 mJ (6σ) - Supports reliable operation in motor phase-legs with inductive kickback |
| Fast body diode | 80 ns trr, 290 nC Qrr - Minimizes commutation losses in synchronous rectifiers and H-bridges |
| Lead-free construction | RoHS-compliant, halogen-free, JEDEC J-STD-020 moisture sensitivity level 3 - Suitable for lead-free reflow assembly |
Applications
| Industrial Motor Drive | Server PSU Primary Switch |
|---|---|
Use Scenario: Three-phase inverter stage in 5–10 kW servo drives operating at 16 kHz PWM frequency. IC Role / Device Role / Timing Role: High-side and low-side N-channel switch in six-pack topology; handles 135 A peak phase current. Use Value: Low RDS(on) reduces I²R losses by 35% vs. legacy 6.5 mΩ parts; 175°C rating avoids thermal shutdown during overload conditions. |
Use Scenario: Primary-side synchronous rectifier in 1.5 kW 48 V output server power supply with LLC resonant topology. IC Role / Device Role / Timing Role: Secondary-side rectifying switch replacing Schottky diodes; driven with precise gate timing relative to resonant waveform zero-crossings. Use Value: 1.3 V VSD and low Qrr cut conduction and recovery losses by 42% compared to 45 V Schottky alternatives. |
| Uninterruptible Power Supply | Battery Management System |
Use Scenario: Bidirectional DC-DC converter in 3 kW online UPS transferring between battery bank (48 V) and AC inverter bus. IC Role / Device Role / Timing Role: Main power switch in dual-active-bridge (DAB) topology; conducts bidirectional current up to 104 A. Use Value: Repetitive avalanche rating ensures survival during battery short-circuit events; low Coss (1190 pF) minimizes dead-time losses. |
Use Scenario: Cell-balancing and main disconnect switch in 48 V lithium-ion battery pack for electric material handling equipment. IC Role / Device Role / Timing Role: High-current isolation switch controlling pack discharge path; activated only during fault or maintenance. Use Value: 700 A pulsed current rating supports instantaneous short-circuit interruption; 0.75 °C/W RθJC enables compact heatsinking in space-constrained BMS enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current N-channel power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP130N5F6 | RDS(on) = 4.2 mΩ (typ), 60 V VDSS, TO-220FP package, no avalanche rating specified | Limited to lower-power (<1.5 kW) applications due to 100 A continuous rating and higher thermal resistance (1.2 °C/W) | Prefer where cost-sensitive, lower-current, through-hole assembly is required and avalanche stress is absent |
| IXFH120N50P3 | 500 V VDSS, 120 A ID, 5.2 mΩ RDS(on), TO-247 package, 100% avalanche tested | Higher voltage rating suits 400 V DC-link systems but sacrifices conduction efficiency in 48 V designs | Select when designing universal-input PSUs or hybrid inverters requiring 500 V blocking with similar current capability |
Compared with STP130N5F6 and IXFH120N50P3, IRF2805LPBF delivers optimal balance of low on-resistance, high current, and validated avalanche ruggedness specifically for 48–60 V industrial power stages-making it superior for motor drives and UPS where both efficiency and transient robustness are critical.
Availability
IRF2805LPBF is available at Aetrix Electronics and suitable for industrial motor drives, server power supplies, uninterruptible power systems, and battery management systems requiring stable component supply and long-term production continuity.
Supply support for IRF2805LPBF 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive, and industrial control ICs and discrete devices.
IRF2805LPBF belongs to Infineon's HEXFET® Power MOSFET product line, engineered for high-efficiency, high-reliability power conversion in demanding industrial and computing applications where thermal resilience and avalanche robustness are essential.
FAQ
What is the maximum continuous drain current at 100°C case temperature?
The IRF2805LPBF supports 96 A continuous drain current at TC = 100°C, as specified in the Absolute Maximum Ratings table. This value reflects thermal derating from the 135 A rating at 25°C, governed by the 1.3 W/°C linear derating factor and 0.75 °C/W junction-to-case thermal resistance.
Does IRF2805LPBF have a qualified repetitive avalanche rating?
Yes-IRF2805LPBF is fully characterized for repetitive avalanche operation. Data sheets specify 1220 mJ (6σ tested) single-pulse energy and provide Figures 15–16 showing allowable avalanche current versus pulse width and temperature. Safe operation requires limiting junction temperature to ≤175°C using transient thermal impedance curves.
Can IRF2805LPBF be used in synchronous rectification applications?
Yes-the device's body diode has 1.3 V forward voltage at 104 A and 80–120 ns reverse recovery time with 290–430 nC Qrr, making it suitable for synchronous rectification in LLC and phase-shifted full-bridge topologies. Gate drive timing must account for diode conduction delay to avoid shoot-through.
What is the recommended PCB layout for thermal performance?
For optimal thermal performance, the D2PAK-7L backside drain pad must be soldered to ≥400 mm² of 2 oz copper with ≥6 thermal vias (0.3 mm diameter, spaced ≤2 mm apart) connecting to internal ground or power planes. Source pins should be routed with ≥3 mm wide traces, and gate traces kept short and shielded from noise sources.
IRF2805LPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HEXFET®
- Package/Case:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Packaging:
- Tube
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 55 V
- Current - Continuous Drain (Id) @ 25°C:
- 135A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 4.7mOhm @ 104A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 230 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 5110 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 200W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-262
IRF2805LPBF FAQ
1.How can I place an order for IRF2805LPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRF2805LPBF 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 IRF2805LPBF reliable?
The price and inventory of IRF2805LPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRF2805LPBF is usually 5 days.
3.What payment methods are accepted for IRF2805LPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRF2805LPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRF2805LPBF?
IRF2805LPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRF2805LPBF 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 IRF2805LPBF?
For technical support, including IRF2805LPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRF2805LPBF requirements.
6.How does Aetrix verify that IRF2805LPBF is sourced from the original manufacturer or authorized distributors?
All IRF2805LPBF 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 IRF2805LPBF meets industry standards.
7.What is the process for return or replacement of IRF2805LPBF?
All IRF2805LPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRF2805LPBF, 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 IRF2805LPBF part is unused and in its original packaging.
Return procedure for IRF2805LPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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