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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > PFC (Power Factor Correction)

Infineon Technologies IRS2500SPBF

Name: IRS2500SPBF
Brand: Infineon Technologies
SKU: IRS2500SPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRS2500SPBF

Manufacturer:: Infineon Technologies

Category:: PFC (Power Factor Correction)

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: IRS2500SPBF.pdf

Description:: IC PFC CTRLR CRM 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:2,312

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Product details

Overview

IRS2500SPBF from Infineon Technologies (formerly International Rectifier) is a transition-mode power factor correction (PFC) control IC for boost topologies, featuring voltage-mode control, 2.5 V internal VBUS reference, 60 ns/30 ns gate drive rise/fall times, and cycle-by-cycle over-current protection. It delivers high PF (>0.98) and low THD (<5%) in universal-input AC-DC PFC pre-regulators for LED drivers and SMPS.

For engineers reviewing the IRS2500SPBF datasheet, IRS2500SPBF pinout, IRS2500SPBF application, or IRS2500SPBF equivalent, key selection criteria include VCC UVLO thresholds (12.5 V rising / 10.5 V falling), COMP pin sourcing/sinking capability (10 mA / −23 mA), burst mode operation at light load, and integrated DC bus over-voltage protection with 100 mV hysteresis.

Technical Context

The IRS2500SPBF implements critical-conduction-mode (CrCM) PFC control using voltage-mode modulation with a dedicated ZX pin for zero-cross detection and an OC pin for current-sense blanking (320 ns). Its error amplifier features 80 dB open-loop gain and 1 MHz bandwidth, enabling stable regulation of the 400 V DC bus under wide line (85–265 VAC) and load variations.

Internal protection includes static/dynamic VBUS over-voltage detection (2.7 V threshold, 100 mV hysteresis), micro-power startup (<50 µA), and latch-immune fault recovery. The gate driver delivers ±500 mA peak source/sink into capacitive loads, supporting fast-switching MOSFETs with minimal external components.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC UVLO Threshold (rising)	12.5 V - Enables reliable startup across universal AC input after rectification and bulk capacitor charging
V_CC Quiescent Current (UVLO mode)	30 µA - Minimizes standby power loss in energy-efficient lighting and adapter designs
V_VBUS Reference	2.50 V ±2% - Sets regulated DC bus voltage via feedback divider; enables precise 380–400 V output targeting
t_ON-MAX	50 µs - Limits maximum switch conduction time to prevent inductor saturation under overload
Gate Drive Rise/Fall Time	60 ns / 30 ns - Supports >100 kHz switching with low switching loss in compact boost inductors
OC Pin Threshold	1.1 V - Triggers cycle-by-cycle shutdown when sensed current exceeds design limit via shunt resistor
COMP Pin Sourcing/Sinking	10 mA / −23 mA - Drives standard RC compensation networks without external buffers

Pinout & Package

IRS2500SPBF is housed in an 8-lead SOIC (SO8N) package with standard JEDEC MS-012AC footprint, rated MSL2 and RoHS-compliant. Thermal resistance θ_JA is 128 °C/W under board-mounted, still-air conditions.

Pin/Terminal	Circuit Role	Design Meaning
1 - COM	Ground reference	Common return for all analog and power circuits; must be low-impedance PCB plane
2 - VCC	Supply input	Accepts 11.5–13.5 V DC; internally clamped at 20 V; powers internal logic and gate driver
3 - OUT	High-side gate driver output	Drives N-channel MOSFET gate with ±500 mA peak; requires external bootstrap diode/capacitor
4 - VBUS	DC bus voltage sense	Monitors rectified input via resistive divider; 2.5 V reference triggers OVP at 2.7 V
5 - OC	Over-current sense input	Receives voltage from current-sense resistor; 320 ns blanking prevents false tripping on turn-on spikes
6 - ZX	Zero-cross detection input	Detects AC line zero-crossing for CrCM timing; internal clamp limits to 5.2 V
7 - COMP	Error amplifier output	Provides loop compensation node; sources 10 mA / sinks 23 mA for Type II/III networks
8 - VDC	DC bus over-voltage clamp	Internally clamped at 5.2 V; used with external Zener for secondary OVP redundancy

Key Features

Feature	Design Value
Burst mode at light load	Reduces standby power to <30 mW in LED drivers meeting IEC 62301 Class B requirements
Micro-power startup	<50 µA ICC enables direct start from bulk capacitor without auxiliary winding or startup resistor
Integrated VBUS OVP with hysteresis	2.7 V trip + 100 mV hysteresis prevents nuisance shutdown during transient surges on 400 V rail
Noise-immune ZX input	Clamped 5.2 V input with Schmitt-trigger threshold (0.7 V / 1.6 V) rejects EMI in high-noise ballast environments
Latch immunity & ESD protection	Class B MM and Class 2 HBM ratings ensure robustness in automated assembly and field operation

Applications

LED Lighting Driver

Universal Input SMPS

Use Scenario: 100 W constant-current LED driver for commercial downlights operating from 85–265 VAC.

IC Role / Device Role / Timing Role: Transition-mode PFC controller regulating 395 V DC bus while synchronizing MOSFET switching to AC line zero-crossings.

Use Value: Achieves >0.98 PF and <5% THD per EN 61000-3-2 Class C, eliminating need for passive harmonic filters.

Use Scenario: 300 W open-frame AC-DC power supply for industrial PLCs requiring stable 12 V/24 V outputs.

IC Role / Device Role / Timing Role: Primary-side PFC pre-regulator delivering tightly regulated 400 V DC bus to downstream LLC resonant converter.

Use Value: Enables single-stage PFC+LLC architecture with >92% system efficiency and compliance to ENERGY STAR® v8.0.

Electronic Fluorescent Ballast

HID Lamp Driver

Use Scenario: 40 W T8 fluorescent lamp ballast with dimming and end-of-life protection.

IC Role / Device Role / Timing Role: CrCM PFC controller driving half-bridge inverter; ZX pin synchronizes to 50/60 Hz line frequency.

Use Value: Eliminates magnetic core losses and audible noise associated with traditional choke-input ballasts.

Use Scenario: 150 W metal halide lamp driver for street lighting with cold-start capability.

IC Role / Device Role / Timing Role: High-voltage PFC stage providing stable DC bus to igniter and lamp regulation circuitry.

Use Value: Ensures consistent lamp ignition and warm-up across −25°C to +60°C ambient with no flicker or drop-out.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transition-mode PFC control applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
UCC28051DR	Current-mode control; higher VCC UVLO (16 V); no integrated VBUS OVP hysteresis	Requires external OVP comparator; better suited for high-line-only 230 VAC systems	Select when designing for fixed-input 230 VAC with tighter cost targets and existing current-sense infrastructure
FAN7930C	Voltage-mode like IRS2500SPBF but with lower gate drive (±350 mA); no VDC clamp pin	Lacks secondary OVP redundancy; limited to ≤75 W LED drivers	Choose for cost-sensitive, lower-power LED retrofit lamps where 400 V bus stability is less critical

Compared with UCC28051DR and FAN7930C, IRS2500SPBF uniquely combines voltage-mode simplicity, integrated dual OVP (static + dynamic), and ±500 mA gate drive-making it optimal for universal-input, high-reliability PFC stages above 75 W where board space and component count are constrained.

Availability

IRS2500SPBF is available at Aetrix Electronics and suitable for LED lighting drivers, universal-input SMPS, electronic fluorescent ballasts, and HID lamp drivers requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.

Supply support for IRS2500SPBF 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 acquired International Rectifier in 2015 and continues its legacy of high-performance power semiconductors and control ICs for energy-efficient systems.

The IRS2500SPBF belongs to Infineon's legacy PFC controller product line, engineered specifically for cost-effective, high-PF boost converters in lighting and industrial power supplies where reliability and regulatory compliance are mandatory.

FAQ

What is the minimum recommended VCC bypass capacitance for stable operation?

A 0.1 µF ceramic capacitor placed directly between VCC and COM is mandatory per the datasheet. This decouples high-frequency gate drive transients and prevents UVLO chatter during startup. Additional bulk capacitance (e.g., 10 µF electrolytic) may be added upstream if VCC is derived from a high-impedance source like a resistive dropper.

Can IRS2500SPBF operate without a transformer-coupled auxiliary supply?

Yes. Its micro-power startup current (<50 µA) allows direct powering from the bulk DC bus via a high-value resistor (e.g., 2.2 MΩ) and local 0.1 µF VCC capacitor-eliminating the need for an auxiliary winding or dedicated startup IC in most LED driver designs.

How does the ZX pin interface with the AC line in a bridge rectifier configuration?

The ZX pin connects to the AC input side of the bridge rectifier through a resistor divider (e.g., 1 MΩ / 10 kΩ), scaling the 50/60 Hz sine wave to 0–5 V. Internal hysteresis and 5.2 V clamping protect against noise and overvoltage, enabling robust zero-cross detection without external conditioning.

Is the COMP pin compatible with standard Type II compensation networks?

Yes. With 80 dB open-loop gain and 1 MHz bandwidth, the COMP pin supports standard two-pole, one-zero (Type II) networks using typical values: 10 nF capacitor, 10 kΩ resistor, and 100 kΩ series resistor. Compensation is verified for stability across −25°C to +125°C junction temperature.

IRS2500SPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Obsolete

Mode:: Critical Conduction (CRM)

Frequency - Switching:: -

Current - Startup:: 50 µA

Voltage - Supply:: 11.5V ~ 20V

Operating Temperature:: -25°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

IRS2500SPBF FAQ

1.How can I place an order for IRS2500SPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRS2500SPBF 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 IRS2500SPBF reliable?

The price and inventory of IRS2500SPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRS2500SPBF is usually 5 days.

3.What payment methods are accepted for IRS2500SPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRS2500SPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRS2500SPBF?

IRS2500SPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRS2500SPBF 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 IRS2500SPBF?

For technical support, including IRS2500SPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRS2500SPBF requirements.

6.How does Aetrix verify that IRS2500SPBF is sourced from the original manufacturer or authorized distributors?

All IRS2500SPBF 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 IRS2500SPBF meets industry standards.

7.What is the process for return or replacement of IRS2500SPBF?

All IRS2500SPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRS2500SPBF, 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 IRS2500SPBF part is unused and in its original packaging.

Return procedure for IRS2500SPBF:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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