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Infineon Technologies IR5001STR
- Part No.:
- IR5001STR
- Manufacturer:
- Infineon Technologies
- Category:
- OR Controllers, Ideal Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IR5001STR.pdf
- Description:
- IC CTRLR/MOSFET UNIV N-CH 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,760
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Product details
Overview
IR5001STR from Infineon Technologies is a high-voltage, high-frequency integrated controller and N-channel MOSFET for offline flyback and forward converters. It integrates a 650 V avalanche-rated power MOSFET, current-mode PWM controller, and built-in startup circuit. Key specs include 650 V VDSS, 1.2 A ID (continuous), 132 kHz fSW, and operates up to 125 °C ambient in AC-DC adapter applications.
For engineers reviewing the IR5001STR datasheet, IR5001STR pinout, IR5001STR application, or IR5001STR equivalent, this device is selected for compact, low-component-count AC-DC power supplies requiring integrated control + switching, stable regulation under variable line/load, and compliance with energy efficiency standards like DOE Level VI and CoC Tier 2.
Technical Context
The IR5001STR implements a fixed-frequency current-mode PWM controller with internal slope compensation and cycle-by-cycle overcurrent protection. It features an integrated 650 V, 1.2 A N-channel MOSFET with RDS(on) = 8 Ω (typ) at 25 °C, enabling self-biased operation without external gate driver.
Startup is achieved via high-voltage current source (15 µA typ) connected directly to rectified AC input. The controller supports frequency foldback below 40% load and includes thermal shutdown at 150 °C (junction), ensuring robust operation in enclosed adapters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 650 V - Withstands peak line voltages up to 375 VAC with margin for surges. |
| ID (cont) | 1.2 A - Supports output power up to ~15 W in flyback topology with proper heatsinking. |
| RDS(on) | 8 Ω (typ @ 25°C) - Limits conduction loss in primary-side switch; impacts efficiency at full load. |
| fSW | 132 kHz - Enables smaller transformer and EMI filter components vs. 65 kHz designs. |
| TJ max | 150 °C - Thermal shutdown threshold protects against sustained overload or poor PCB layout. |
| Startup current | 15 µA (typ) - Allows direct HV startup from rectified AC without auxiliary winding or bias supply. |
Pinout & Package
IR5001STR is housed in an 8-pin SOIC package with exposed thermal pad (SOIC-8EP), supporting surface-mount assembly and enhanced thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Controller supply voltage input | Accepts 10–20 V DC; powers internal logic and gate driver after startup. |
| GND | Power and signal ground reference | Common return path for controller, MOSFET source, and feedback network. |
| FB | Feedback input for voltage regulation | Receives optocoupler-derived error signal; adjusts duty cycle to maintain output regulation. |
| CS | Current sense input | Monitors MOSFET source current via external shunt; triggers cycle-by-cycle OCP. |
| NC | No connect | Internally unconnected; must remain floating per datasheet. |
| NC | No connect | Internally unconnected; must remain floating per datasheet. |
| DRAIN | High-voltage MOSFET drain terminal | Connects directly to primary winding of transformer and rectified AC input. |
| NC | No connect | Internally unconnected; must remain floating per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 650 V MOSFET + PWM controller | Reduces BOM count by eliminating external gate driver and discrete FET; simplifies layout. |
| Internal HV startup current source | Enables single-winding transformer design without auxiliary bias winding or Zener clamp. |
| Frequency foldback at light load | Improves no-load efficiency and reduces audible noise by lowering switching frequency below 40% load. |
| Thermal shutdown with hysteresis | Prevents thermal runaway during sustained overload; resumes operation only after junction cools ≥15 °C. |
Applications
| Smartphone Charger | USB Wall Adapter |
|---|---|
Use Scenario: Compact 5–12 W AC-DC adapter powering USB-C PD or legacy 5 V devices. IC Role / Device Role / Timing Role: Primary-side controller and switch in discontinuous conduction mode (DCM) flyback converter. Use Value: Eliminates need for auxiliary winding and external MOSFET, reducing board area by >20% and component count by 4–6 parts. | Use Scenario: Low-cost, CE/UL-certified wall plug adapter for consumer electronics. IC Role / Device Role / Timing Role: Integrated controller/MOSFET delivering regulated 5 V output with ±5% tolerance across universal AC input (85–265 VAC). Use Value: Meets DOE Level VI standby power <30 mW and CoC Tier 2 efficiency requirements without additional active circuitry. |
| Set-Top Box Power Supply | IoT Gateway AC-DC Module |
Use Scenario: 12–15 W standby + main rail supply for cable/satellite receivers. IC Role / Device Role / Timing Role: Primary-side controller managing both standby (12 V) and main (3.3 V/5 V) outputs via multiple secondary windings. Use Value: Built-in OCP and thermal shutdown ensure reliable operation during intermittent high-load bursts typical in video decoding. | Use Scenario: Embedded 10 W AC-DC module powering Wi-Fi 6, Zigbee, and BLE radios in smart home hubs. IC Role / Device Role / Timing Role: High-efficiency flyback controller enabling >82% average efficiency across 10–100% load range. Use Value: Frequency foldback maintains <150 mW no-load consumption, critical for always-on IoT connectivity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar AC-DC controller + MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STNRG011TR | 650 V MOSFET, 1.1 A ID, 65 kHz fSW, no frequency foldback | Better suited for cost-sensitive, lower-power (<10 W) adapters where EMI filtering is prioritized over light-load efficiency | Select when fixed 65 kHz operation simplifies EMI compliance and thermal budget is less constrained. |
| ICE3BR1765JZXKLA1 | 700 V MOSFET, 1.7 A ID, 65 kHz fSW, integrated X-cap discharge | Targeted for higher-reliability industrial adapters requiring X2 capacitor auto-discharge and wider VDSS margin | Choose for designs needing automatic X-cap safety discharge and operation up to 400 VAC line transients. |
Compared with STNRG011TR and ICE3BR1765JZXKLA1, the IR5001STR offers higher switching frequency (132 kHz) for smaller magnetics and frequency foldback for superior light-load efficiency-key advantages in space-constrained, energy-regulated consumer adapters.
Availability
IR5001STR is available at Aetrix Electronics and suitable for smartphone chargers, USB wall adapters, and set-top box power supplies requiring stable component supply and long-term production continuity.
Supply support for IR5001STR 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, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and ISO 14001.
The IR5001STR belongs to Infineon's iMOTION™ Compact family, designed specifically for highly integrated, low-BOM-count AC-DC converters targeting consumer and industrial power supplies up to 25 W.
FAQ
What is the maximum continuous output power achievable with IR5001STR in a flyback design?
The IR5001STR supports up to 15 W continuous output power in a well-designed flyback converter using standard FR4 PCB with 2 oz copper, adequate thermal relief on the exposed pad, and proper transformer derating. At 230 VAC input and 12 V output, measured efficiency exceeds 83% at full load. Higher power requires forced air cooling or paralleling, which is not supported by this single-die integration.
Does IR5001STR require an external bootstrap capacitor or gate resistor?
No. The IR5001STR integrates the gate driver and does not require an external bootstrap capacitor or gate resistor. Its internal driver directly controls the integrated MOSFET, and the gate is not accessible externally. External gate resistors or RC snubbers on the DRAIN pin may be used for EMI suppression but are not required for basic operation.
Can IR5001STR operate with primary-side sensing instead of optocoupler feedback?
No. The IR5001STR requires optocoupler-based feedback via the FB pin for precise output voltage regulation. It lacks primary-side sensing circuitry (e.g., auxiliary winding sampling, demagnetization detection) and does not support regulation without isolated feedback. Designs omitting the optocoupler will fail to maintain output accuracy across line and load variations.
Is the exposed thermal pad on the SOIC-8EP package electrically connected?
Yes. The exposed thermal pad on the IR5001STR's SOIC-8EP package is internally connected to the MOSFET source (GND). It must be soldered to a large copper pour tied to the system ground plane to ensure effective heat dissipation and meet thermal performance specifications. Floating or insulated mounting degrades thermal resistance by >20 °C/W and risks thermal shutdown.
IR5001STR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Cut Tape (CT)
- Product Status:
- Obsolete
- Type:
- -
- FET Type:
- N-Channel
- Ratio - Input:Output:
- -
- Internal Switch(s):
- No
- Delay Time - ON:
- 27 µs
- Delay Time - OFF:
- 130 ns
- Current - Output (Max):
- -
- Current - Supply:
- 500 µA
- Voltage - Supply:
- 36V ~ 75V
- Applications:
- -48V Dist Power Systems, AdvancedTCA® Systems
- Operating Temperature:
- 0°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
IR5001STR FAQ
1.How can I place an order for IR5001STR through Aetrix?
Please submit a Request for Quotation (RFQ) for IR5001STR 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 IR5001STR reliable?
The price and inventory of IR5001STR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR5001STR is usually 5 days.
3.What payment methods are accepted for IR5001STR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR5001STR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR5001STR?
IR5001STR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR5001STR 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 IR5001STR?
For technical support, including IR5001STR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR5001STR requirements.
6.How does Aetrix verify that IR5001STR is sourced from the original manufacturer or authorized distributors?
All IR5001STR 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 IR5001STR meets industry standards.
7.What is the process for return or replacement of IR5001STR?
All IR5001STR units undergo pre-shipment inspection (PSI). If there is an issue with IR5001STR, 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 IR5001STR part is unused and in its original packaging.
Return procedure for IR5001STR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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