My Inquiry
My Account
Infineon Technologies IR1155SPBF
- Part No.:
- IR1155SPBF
- Manufacturer:
- Infineon Technologies
- Category:
- PFC (Power Factor Correction)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IR1155SPBF.pdf
- Description:
- IC PFC CTLR CCM ADJUSTABLE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,254
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
IR1155SPBF from Infineon Technologies (formerly International Rectifier) is a programmable-frequency, average current-mode PFC controller IC implementing One Cycle Control (OCC) for continuous conduction mode (CCM) boost converters. It delivers high power factor (>0.99), low THD (<5%), and tight DC bus regulation across 85–264VAC input, with 48–200kHz frequency programming, 1.5A gate drive, and <200µA sleep current-used in AC-DC front-end stages of LED drivers, server PSUs, and industrial SMPS.
For engineers reviewing the IR1155SPBF datasheet, IR1155SPBF pinout, IR1155SPBF application, or IR1155SPBF equivalent, key selection criteria include its OCC-based dynamic response, OVP/EN pin dual-function interface, micropower sleep mode activation threshold (0.6–1.0V), and VCC UVLO hysteresis (1.5V) for robust line brownout recovery.
Technical Context
The IR1155SPBF integrates a precision 5.0V internal reference (±2% over temp), a transconductance error amplifier (gm = 35–65 µS), and a dedicated oscillator with ±10% total frequency variation across line and temperature. Its OCC architecture directly shapes input current using instantaneous VFB and ISNS feedback without multiplier or PI loop compensation.
Protection logic includes cycle-by-cycle peak current limiting via ISNS voltage threshold (–0.77V typ), open-loop detection at VFB = 19% VREF, and output overvoltage reset at 102.2% VREF. The OVP/EN pin serves both fault latching and sleep-mode enable with separate 0.60V disable / 0.90V enable thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Control Method | One Cycle Control (OCC) for CCM boost PFC-eliminates multiplier and simplifies loop design |
| Switching Frequency | 48–200 kHz programmable via external capacitor-enables EMI optimization and magnetics sizing |
| VCC UVLO Threshold | 11.3V turn-on / 9.8V turn-off with 1.5V hysteresis-ensures reliable restart after AC dips |
| Sleep Current | 125–200 µA-meets Energy Star standby power requirements when OVP/EN pulled low |
| Gate Drive Strength | 1.5A peak source/sink-directly drives medium-power MOSFETs without external buffer |
| OVP Detection Accuracy | 106.5% VREF (±2%)-provides precise DC bus overvoltage cutoff before bulk capacitor stress |
| ISNS Threshold | –0.77V typical-sets accurate peak inductor current limit independent of sense resistor tolerance |
Pinout & Package
IR1155SPBF is housed in an 8-pin SOIC package (SOIC-8, 150 mil width) with standard thermal pad layout and JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COM (Pin 1) | Power Ground Reference | Primary return path for ISNS, GATE, and internal bias-must be low-inductance connection to power ground plane |
| FREQ (Pin 2) | Oscillator Timing Input | Connects external capacitor to set switching frequency; value determines FSW from 48–200kHz |
| ISNS (Pin 3) | Current Sense Input | Accepts negative voltage from shunt resistor; –0.77V threshold enables accurate peak current limiting |
| OVP (Pin 4) | Overvoltage Detect / Enable | Dual-function pin: monitors DC bus via resistive divider; pulled low to enter <200µA sleep mode |
| COMP (Pin 5) | Error Amplifier Output | Drives external compensation network; 4.9V effective voltage sets steady-state duty cycle |
| VFB (Pin 6) | Voltage Feedback Input | Monitors DC bus via resistor divider; 19% VREF triggers open-loop protection if regulation fails |
| VCC (Pin 7) | Supply Voltage Input | 12–19V operating range with 11.3V UVLO turn-on-powers internal regulators and gate driver |
| GATE (Pin 8) | High-Side Gate Driver Output | 1.5A capable push-pull output-drives N-channel MOSFET gate directly with 20ns rise/fall times |
Key Features
| Feature | Design Value |
|---|---|
| One Cycle Control Architecture | Eliminates analog multiplier and PI compensator-reduces BOM count by ≥3 components vs. UC3854-class controllers |
| Programmable Frequency Range | 48–200kHz via single capacitor-supports EMI spread-spectrum tuning and transformer size trade-offs |
| Dual-Function OVP/EN Pin | Enables hardware-triggered sleep mode (≤200µA) and precise 106.5% VREF overvoltage shutdown in one terminal |
| Micropower Startup | 175µA startup current-allows direct boot from auxiliary winding without dedicated startup circuit |
| Blanking Time Control | 220–520ns ISNS blanking-suppresses switching noise during MOSFET turn-on, preventing false current limit trips |
Applications
| LED Streetlight Power Supply | Industrial AC-DC Converter |
|---|---|
Use Scenario: 150W outdoor LED driver operating from universal AC input with strict THD (<5%) and standby power (<0.5W) requirements. IC Role / Device Role / Timing Role: Primary PFC controller enforcing sinusoidal input current and regulating 400V DC bus using OCC algorithm. Use Value: Sleep mode activated via OVP/EN pin reduces no-load consumption to 180µA, meeting IEC 62301 Class B standby limits. | Use Scenario: 500W factory automation power supply requiring high reliability across 85–264VAC with surge immunity. IC Role / Device Role / Timing Role: CCM boost PFC stage controller with integrated OVP, UVLO, and cycle-by-cycle current limiting. Use Value: 1.5A gate drive directly switches 600V MOSFETs; 150°C max junction rating supports derated operation in enclosed enclosures. |
| Server PSU Front-End | Medical Equipment AC Adapter |
Use Scenario: Redundant 1kW server PSU needing fast transient response and low THD under variable load. IC Role / Device Role / Timing Role: Average current-mode PFC controller with 48kHz base frequency optimized for low audible noise and EMI filtering. Use Value: OCC architecture achieves <10µs current-loop response-maintains PF >0.98 even during 50% load steps. | Use Scenario: 120W medical AC adapter certified to IEC 60601-1 with reinforced isolation and low leakage current. IC Role / Device Role / Timing Role: Isolated PFC controller where VFB signal is opto-coupled; OVP/EN pin used for system-level enable/disable. Use Value: Internal 5.0V reference stability (±0.4% over temp) ensures consistent DC bus regulation across –25°C to +125°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PFC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC28070PW | Fixed 67kHz frequency; uses average current mode with multiplier-based control; no sleep mode | Lacks micropower standby capability; requires external soft-start and OVP circuitry | Choose for cost-sensitive designs where fixed frequency and legacy multiplier topology are acceptable |
| FAN4803SJX | 65kHz fixed frequency; proprietary "Transition Mode" control; lower gate drive (0.5A) | Optimized for discontinuous conduction mode (DCM); unsuitable for CCM boost above 300W | Prefer for sub-200W DCM PFC where size and component count outweigh efficiency needs |
Compared with UCC28070PW and FAN4803SJX, IR1155SPBF uniquely combines programmable frequency, OCC-based fast transient response, and hardware-enforced sleep mode-making it optimal for high-efficiency, low-standby, universal-input CCM PFC designs above 250W.
Availability
IR1155SPBF is available at Aetrix Electronics and suitable for LED lighting drivers, industrial AC-DC converters, server power supplies, and medical AC adapters requiring stable component supply and long-term lifecycle support.
Supply support for IR1155SPBF 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 specializing in power management, automotive, and industrial control ICs, with deep expertise in high-voltage analog and mixed-signal design.
The IR1155SPBF belongs to Infineon's μPFC™ family-designed specifically for high-efficiency, low-THD, and regulatory-compliant active PFC in universal-input AC-DC systems.
FAQ
What is the minimum recommended FREQ capacitor value for stable 200kHz operation?
The datasheet specifies ~430pF for 200kHz operation. Use a C0G/NP0 ceramic capacitor rated ≥50V with ≤10% tolerance. Layout must minimize trace inductance between FREQ pin and capacitor ground; stray capacitance above 50pF will reduce actual frequency below target.
How does the OVP/EN pin behave during normal regulation versus fault condition?
During regulation, OVP/EN monitors DC bus via resistor divider and asserts fault if voltage exceeds 106.5% VREF. When pulled below 0.6V, it forces sleep mode-halting gate drive, oscillator, and error amplifier while maintaining <200µA quiescent draw.
Can IR1155SPBF drive a 600V SiC MOSFET directly without a gate driver stage?
Yes-the 1.5A peak gate drive and 14V internal clamp support direct driving of low-Qg SiC MOSFETs (e.g., IMW120R045M1H) up to 300kHz. Ensure gate loop inductance <5nH and use 10Ω series resistance to damp ringing; avoid driving high-Ciss devices (>4nF) at full 200kHz.
What is the purpose of the 220–520ns blanking time on the ISNS pin?
The blanking time disables current sensing for 220–520ns after GATE turn-on to ignore switch-node voltage spikes and diode reverse-recovery noise. This prevents false overcurrent trips during MOSFET commutation-critical for stable operation with fast-recovery output diodes or SiC rectifiers.
IR1155SPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Mode:
- Continuous Conduction (CCM)
- Frequency - Switching:
- Adjustable
- Current - Startup:
- 175 µA
- Voltage - Supply:
- 12V ~ 19V
- Operating Temperature:
- -25°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
IR1155SPBF FAQ
1.How can I place an order for IR1155SPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR1155SPBF 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 IR1155SPBF reliable?
The price and inventory of IR1155SPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR1155SPBF is usually 5 days.
3.What payment methods are accepted for IR1155SPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR1155SPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR1155SPBF?
IR1155SPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR1155SPBF 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 IR1155SPBF?
For technical support, including IR1155SPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR1155SPBF requirements.
6.How does Aetrix verify that IR1155SPBF is sourced from the original manufacturer or authorized distributors?
All IR1155SPBF 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 IR1155SPBF meets industry standards.
7.What is the process for return or replacement of IR1155SPBF?
All IR1155SPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR1155SPBF, 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 IR1155SPBF part is unused and in its original packaging.
Return procedure for IR1155SPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IR1155SPBF 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
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
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…
