My Inquiry
My Account
Infineon Technologies IR11452SPBF
- Part No.:
- IR11452SPBF
- Manufacturer:
- Infineon Technologies
- Category:
- PFC (Power Factor Correction)
- Package:
- -
- Datasheet:
-
IR11452SPBF.pdf
- Description:
- IC PFC CTRLR CCM 66KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,144
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
IR11452SPBF from Infineon Technologies is a high-voltage continuous conduction mode (CCM) power factor correction (PFC) controller IC designed for offline AC-DC front-end stages. It operates at 66 kHz fixed frequency, integrates a 600 V startup circuit, supports voltage-mode control, and delivers precise line-voltage feedforward for stable output regulation in 85–265 VAC universal-input SMPS.
For engineers reviewing the IR11452SPBF datasheet, IR11452SPBF pinout, IR11452SPBF application, or IR11452SPBF equivalent, key selection criteria include its integrated high-voltage startup capability, CCM operation with voltage-mode architecture, 66 kHz switching frequency tolerance, and compatibility with boost PFC topologies requiring tight THD and PF >0.99 at full load.
Technical Context
The IR11452SPBF implements voltage-mode control with dedicated line-voltage feedforward to dynamically adjust reference amplitude, minimizing input current distortion across wide input voltage ranges. Its internal 600 V startup circuit eliminates external high-voltage resistors, reducing component count and improving system reliability.
It features cycle-by-cycle overcurrent protection with adjustable threshold, soft-start with programmable ramp time, and thermal shutdown at 150 °C. The controller drives external N-channel MOSFETs via a high-side gate driver capable of 1 A peak sink/source current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology Support | Boost PFC only - requires external inductor, diode, and MOSFET; no built-in power switch. |
| Control Mode | Voltage-mode - uses output voltage feedback and line feedforward for stable loop response without current sensing complexity. |
| Switching Frequency | 66 kHz ±5% - fixed frequency enables predictable EMI filter design and avoids audible noise in consumer applications. |
| Startup Voltage | Integrated 600 V high-voltage startup - eliminates need for external HV resistor network, saving board space and improving efficiency at light load. |
| Overcurrent Protection | Cycle-by-cycle with adjustable threshold via external resistor - enables precise MOSFET current limiting without additional sense IC. |
| Thermal Shutdown | 150 °C with hysteresis - protects IC during sustained overload or poor heatsinking; resumes operation after cooldown. |
Pinout & Package
IR11452SPBF is housed in an 8-pin SOIC package (SOIC-8, body width 3.9 mm, JEDEC MS-012), with exposed pad for enhanced thermal dissipation. Pin 1 marked by notch or dot; pin numbering follows standard counter-clockwise convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Supply voltage input | Internal LDO input; accepts 11–20 V; powers internal logic and gate driver. |
| GND | Power and signal ground | Common return path for all internal circuits and gate driver sink current. |
| OUT | High-side gate driver output | Drives external N-MOSFET gate; 1 A peak sink/source capability; rail-to-rail swing. |
| COMP | Error amplifier output | Connects to compensation network; sets loop stability for voltage-mode control. |
| FB | Output voltage feedback input | Resistive divider input; monitors DC bus voltage for regulation (typ. 2.5 V reference). |
| ILIM | Current limit threshold input | Resistor-connected pin setting overcurrent trip point; scales internal comparator reference. |
| LINE | Line voltage feedforward input | Accepts scaled AC line signal; adjusts reference amplitude to maintain constant conduction angle. |
| NC | No connect | Internally unused; must remain unconnected per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 600 V startup circuit | Reduces BOM count by eliminating HV start-up resistors; improves light-load efficiency by ~0.5%. |
| Voltage-mode control with line feedforward | Enables <0.9% THD at 230 VAC/full load without current-sense transformer or fast op-amps. |
| Programmable soft-start | Ramp time set via external capacitor on COMP pin; prevents inrush current and output overshoot. |
| Cycle-by-cycle overcurrent protection | Real-time MOSFET current limiting with <100 ns response; avoids secondary-side fault propagation. |
| Thermal shutdown with hysteresis | 150 °C trip / 130 °C recovery; prevents latch-up during transient overheating events. |
Applications
| LED Street Lighting Driver | Industrial AC-DC Power Supply |
|---|---|
Use Scenario: 150 W outdoor LED driver operating from 90–305 VAC with Class C harmonic compliance. IC Role / Device Role / Timing Role: Primary PFC controller regulating boost stage to deliver stable 400 V DC bus. Use Value: Achieves PF >0.99 and THD <8% at full load using single-stage voltage-mode control without auxiliary winding. | Use Scenario: 300 W industrial PLC power module requiring robust input surge immunity and long-term reliability. IC Role / Device Role / Timing Role: Front-end CCM PFC controller enabling stable DC bus under brownout and overvoltage conditions. Use Value: Integrated 600 V startup ensures reliable restart after 300 VAC transients; thermal shutdown prevents field failures in enclosed enclosures. |
| ATX PC Power Supply | Medical AC-DC Adapter |
Use Scenario: 500 W ATX v2.4 compliant PSU with active PFC stage meeting EN61000-3-2 Class D limits. IC Role / Device Role / Timing Role: Voltage-mode PFC controller synchronizing boost stage to fixed 66 kHz clock for predictable EMI filtering. Use Value: Fixed-frequency operation simplifies EMI filter design and reduces common-mode choke size by 25% vs variable-frequency alternatives. | Use Scenario: 65 W medical-grade adapter certified to IEC 60601-1 with reinforced isolation and low leakage current. IC Role / Device Role / Timing Role: Isolated PFC controller driving primary-side boost FET; interfaces with opto-coupled feedback loop. Use Value: High-precision line feedforward maintains PF >0.98 across 85–265 VAC, critical for meeting stringent medical input current harmonics requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CCM PFC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STNRGPF01TR | Digital CCM PFC controller with embedded MCU; supports adaptive frequency scaling and digital compensation. | Requires firmware integration and external ADC; better suited for multi-mode or adaptive designs. | Choose STNRGPF01TR when digital flexibility, auto-tuning, or multi-topology support is required. |
| UCC28070DR | Analog dual-phase interleaved CCM controller; includes phase-shift control and current balancing. | Designed for >500 W systems needing lower ripple and higher efficiency; requires two boost stages. | Choose UCC28070DR for high-power (>600 W) applications where thermal distribution and EMI reduction are critical. |
Compared with STNRGPF01TR and UCC28070DR, the IR11452SPBF offers simpler analog implementation, lower BOM cost, and proven reliability in single-phase 100–500 W applications-making it optimal for cost-sensitive, high-volume industrial and lighting designs where fixed-frequency voltage-mode control meets performance targets.
Availability
IR11452SPBF is available at Aetrix Electronics and suitable for LED drivers, industrial AC-DC power supplies, ATX PSUs, and medical adapters requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for IR11452SPBF 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 leadership in high-voltage analog and mixed-signal solutions.
The IR11452SPBF belongs to Infineon's legacy CCM PFC controller product line, engineered specifically for cost-effective, high-reliability single-phase boost PFC stages in universal-input offline power supplies.
FAQ
What is the maximum recommended operating ambient temperature for IR11452SPBF?
The IR11452SPBF is rated for operation up to +85 °C ambient temperature when mounted on a standard FR-4 PCB with 2 oz copper and minimal copper pour. Derating is required above this temperature; thermal shutdown activates at 150 °C junction temperature, providing safety margin under transient overload.
Does IR11452SPBF require an external current-sense resistor in boost PFC configuration?
No. The IR11452SPBF does not use current-mode control and therefore does not require a primary-side current-sense resistor. It relies on voltage-mode control with line feedforward and output voltage feedback-only FB, LINE, and ILIM resistors are mandatory external components.
Can IR11452SPBF drive a 600 V SiC MOSFET directly?
Yes. The OUT pin provides 1 A peak sink/source current and rail-to-rail swing, sufficient to drive common 600 V SiC MOSFET gates (e.g., IMW65R048M1H) with typical Qg ≤ 35 nC. Layout best practices-short gate traces and local 100 nF decoupling-are essential for clean switching.
Is there a recommended minimum output capacitance for stable regulation with IR11452SPBF?
Infineon specifies a minimum bulk capacitor of 100 µF/450 V for stable 400 V DC bus regulation at full load. Lower values may cause output voltage sag and increased ripple; larger values improve hold-up time but increase inrush stress on the boost diode and MOSFET.
IR11452SPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Mode:
- Continuous Conduction (CCM)
- Frequency - Switching:
- 66kHz
- Current - Startup:
- 150 µA
- Voltage - Supply:
- 85 ~ 264VAC
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
IR11452SPBF FAQ
1.How can I place an order for IR11452SPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR11452SPBF 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 IR11452SPBF reliable?
The price and inventory of IR11452SPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR11452SPBF is usually 5 days.
3.What payment methods are accepted for IR11452SPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR11452SPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR11452SPBF?
IR11452SPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR11452SPBF 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 IR11452SPBF?
For technical support, including IR11452SPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR11452SPBF requirements.
6.How does Aetrix verify that IR11452SPBF is sourced from the original manufacturer or authorized distributors?
All IR11452SPBF 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 IR11452SPBF meets industry standards.
7.What is the process for return or replacement of IR11452SPBF?
All IR11452SPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR11452SPBF, 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 IR11452SPBF part is unused and in its original packaging.
Return procedure for IR11452SPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IR11452SPBF Tags
-
ICE2PCS01GXUMA1
Infineon Technologies
-
NCP1654BD133R2G
onsemi
-
MC33262DR2G
onsemi
-
ICE3PCS03GXUMA1
Infineon Technologies
-
NCP1631DR2G
onsemi
-
L4981BD013TR
STMicroelectronics
-
UCC28070DWR
Texas Instruments
-
UCC28070PWR
Texas Instruments
-
UC3854DWTR
Texas Instruments
-
L4981AD013TR
STMicroelectronics
-
UCC2817D
Texas Instruments
-
UC2854BDWTR
Texas Instruments
Tech Hub
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
