Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > LED Drivers

Infineon Technologies IRS2980STRPBF

Name: IRS2980STRPBF
Brand: Infineon Technologies
SKU: IRS2980STRPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: IRS2980STRPBF

Manufacturer:: Infineon Technologies

Category:: LED Drivers

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

Datasheet:: IRS2980STRPBF.pdf

Description:: IC LED DRIVER CTRLR PWM 8SOIC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,068

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

IRS2980STRPBF from Infineon (formerly International Rectifier) is a high-voltage buck LED driver controller IC with hysteretic current regulation, 600 V breakdown tolerance, 15.6 V internal zener clamp on VCC, and micropower startup (250 µA). It integrates a high-voltage regulator (up to 450 V), analog/PWM dimming interface (0–2 V or 3.3/5 V logic, up to 1 kHz), and floating high-side differential current sense for low-side MOSFET control - used in LED retrofit lamps and driver modules.

For engineers reviewing the IRS2980STRPBF datasheet, IRS2980STRPBF pinout, IRS2980STRPBF application, or IRS2980STRPBF equivalent, key selection criteria include its 600 V V_OFFSET, 180 mA/260 mA IO+/IO− gate drive capability, 0.5 V current-sense threshold with 100 mV hysteresis, 150 kHz max switching frequency, and SO8 package compatibility with thermal relief design requirements.

Technical Context

The IRS2980STRPBF implements a self-oscillating hysteretic current control architecture operating from 25 kHz to 120 kHz (max 150 kHz), where frequency and duty cycle dynamically adjust to maintain tight average LED current regulation across line and load variations. Its floating high-side sensing and level-shift scheme enables accurate current monitoring without external shunts or isolated supplies.

It features an integrated HV regulator (V_HV input up to 450 V DC, transient-rated to 600 V), UVLO thresholds of 9.3 V (rising) and 7.3 V (falling) on the high-side well, and a programmable RAMP pin with 15 µA charging current and 2.0 V/0.2 V shutdown/restart thresholds - enabling robust dimming control and fault recovery without external timing components.

Key Specifications

Parameter	Value and Actual Design Meaning
V_OFFSET	600 V - withstands transient overvoltage up to 600 V, enabling direct connection to rectified AC mains in offline LED drivers
V_HV Max (DC)	450 V - maximum continuous high-voltage input for internal regulator operation; requires thermal management above 375 V
I_O+/I_O−	180 mA / 260 mA - peak source/sink gate drive current supports fast turn-on/turn-off of low-side MOSFETs in buck topology
V_CS Threshold	0.5 V - precise current-sense reference voltage; combined with hysteresis enables stable hysteretic regulation
V_CLAMP	15.6 V ±1.0 V - internal zener clamp protects VCC pin; eliminates need for external Zener diode or LDO
f_MAX	150 kHz - maximum switching frequency sets upper bound for inductor size and EMI filter design
I_QCCUV	250 µA - ultra-low startup current allows direct bootstrap from high-impedance HV rail without auxiliary supply

Pinout & Package

IRS2980STRPBF is housed in an SO8 (Small Outline 8-pin) package with standard 1.27 mm pitch, gull-wing leads, and exposed thermal pad (non-electrical). Pin 1 is marked by a beveled corner or dot; pin numbering follows counter-clockwise convention from pin 1.

Pin/Terminal	Circuit Role	Design Meaning
1 (HV)	High-voltage input	Connects to rectified AC bus (up to 450 V DC); feeds internal HV regulator and level-shift circuitry
2 (VS)	Source reference for high-side sense	Return node for floating current-sense amplifier; referenced to COM during low-side switch conduction
3 (COM)	Power and signal ground	Common reference for all low-voltage signals, VCC, ADIM, RAMP, CS, and OUT outputs
4 (ADIM)	Analog/PWM dimming input	Accepts 0–2 V analog or 3.3/5 V logic PWM (≤1 kHz); controls LED brightness from 0% to 100%
5 (RAMP)	Internal oscillator ramp node	Charged at 15 µA; triggers shutdown at 2.0 V and restart at 0.2 V - sets switching frequency and dimming response
6 (OUT)	Gate drive output	Drives low-side N-channel MOSFET gate; 180 mA source / 260 mA sink capability with <220 ns rise time
7 (CS)	Current sense input	Receives differential voltage across sense resistor; 0.5 V threshold with 100 mV hysteresis enables hysteretic regulation
8 (VCC)	Internal regulator output	Supplies internal circuitry; clamped at 15.6 V; powered by internal HV regulator or external source

Key Features

Feature	Design Value
Hysteretic current regulation	Eliminates need for external error amplifier, compensation network, or clock generator - reduces BOM count and design iteration time
Floating high-side differential current sense	Enables accurate LED current measurement without shunt resistor on high-voltage side or optocoupler isolation
Integrated 450 V HV regulator	Derives VCC directly from rectified AC bus; removes auxiliary winding or capacitive dropper supply in offline designs
Programmable RAMP pin	Allows frequency tuning and dimming response shaping via external capacitor; simplifies EMI compliance and flicker mitigation
15.6 V internal zener clamp	Protects VCC against overvoltage without discrete Zener; improves reliability and board space efficiency

Applications

LED Retrofit Lamps

LED Driver Modules

Use Scenario: Direct replacement for incandescent or CFL bulbs in E26/E27 sockets with universal AC input (85–265 V_AC).

IC Role / Device Role: Primary buck controller managing LED string current, dimming interface, and HV startup in single-stage offline topology.

Use Value: Enables compact, thermally efficient lamp design with no external VCC supply or protection circuits - meeting UL 1310 Class P requirements.

Use Scenario: Integrated LED driver PCB for commercial downlights, panel lights, or signage requiring constant-current output and analog/PWM dimming.

IC Role / Device Role: Core current-regulating controller interfacing with external MOSFET, inductor, and feedback resistor to deliver 350–700 mA LED current.

Use Value: Reduces external component count by >40% vs. op-amp-based controllers; supports rapid prototyping with minimal layout iterations.

Industrial LED Lighting

Smart Home Lighting Controls

Use Scenario: High-reliability LED drivers for warehouse, parking garage, or street lighting operating in -40°C to +85°C ambient.

IC Role / Device Role: Hysteretic buck controller with latch immunity and industrial-grade qualification (JEDEC JESD22-A115 Class B ESD).

Use Value: Delivers stable current regulation under wide input voltage swings and temperature extremes without trimming or recalibration.

Use Scenario: Dimmable LED fixtures controlled via microcontroller GPIO or DALI interface with 0–10 V or PWM command signals.

IC Role / Device Role: Dimming interface translator and current regulator - accepts 3.3 V logic PWM or analog 0–2 V input to modulate LED brightness.

Use Value: Supports seamless integration with MCU-based lighting hubs; achieves <1% dimming linearity and flicker-free operation at 1 kHz PWM.

Equivalent & Alternatives

The following parts are listed as comparable options for similar LED driver controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MP4005GQ-Z	Fixed-frequency (500 kHz) current-mode PWM controller; requires external error amp and compensation; no integrated HV regulator	Requires auxiliary VCC supply and more external components; better suited for high-efficiency, low-EMI designs with tight ripple specs	Select when higher switching frequency and tighter current tolerance (<±3%) are required over simplicity and cost
AL1676-2S	Hysteretic buck controller with 650 V rating; includes built-in 10 Ω gate driver; lacks analog dimming input (PWM only)	No analog dimming support; optimized for cost-sensitive, non-dimmable LED tubes and bulbs	Select for non-dimmable, high-volume retrofit lamps where analog control is unnecessary and gate drive strength is critical

Compared with MP4005GQ-Z and AL1676-2S, the IRS2980STRPBF uniquely combines hysteretic simplicity, integrated HV regulation, and dual analog/PWM dimming in one SO8 package - making it optimal for fast-turnaround, thermally constrained, dimmable offline LED drivers.

Availability

IRS2980STRPBF is available at Aetrix Electronics and suitable for LED retrofit lamps, LED driver modules, and industrial lighting systems requiring stable component supply despite end-of-life status at original manufacturer.

Supply support for IRS2980STRPBF 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 maintains legacy product support, documentation, and qualified manufacturing for high-reliability power semiconductors and controllers.

The IRS2980STRPBF belongs to IR's LED Driver Controller family, designed specifically for cost-sensitive, single-stage offline buck LED drivers targeting residential and commercial retrofit applications with integrated safety and dimming functionality.

FAQ

What is the maximum continuous input voltage for IRS2980STRPBF?

The IRS2980STRPBF supports a maximum continuous high-voltage input (V_HV) of 450 V DC, as limited by internal regulator power dissipation. While the device is rated for 600 V transient withstand, sustained operation above 450 V requires external thermal management per datasheet Section 5 and thermal relief PCB layout.

Can IRS2980STRPBF operate without an external VCC supply?

Yes - the IRS2980STRPBF integrates a high-voltage regulator that derives VCC directly from the HV pin (up to 450 V), enabling full operation without an auxiliary supply. Startup current is only 250 µA, allowing reliable bootstrap from high-impedance rectified AC rails using a simple resistive divider or capacitive dropper.

What dimming interfaces does IRS2980STRPBF support?

The IRS2980STRPBF supports both analog dimming (0–2 V DC applied to ADIM pin) and PWM dimming (3.3 V or 5 V logic-level signal up to 1 kHz). The internal dimming circuit maps input voltage or duty cycle linearly to LED current, achieving 0–100% brightness control without external DACs or microcontrollers.

Is IRS2980STRPBF still in production?

No - Infineon declared IRS2980STRPBF End-of-Life (EOL) effective October 15, 2015. However, Aetrix Electronics maintains verified, traceable inventory with full lot traceability and extended lifecycle support for legacy design continuity and repair programs.

IRS2980STRPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: LEDrivIR™

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

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: DC DC Controller

Topology:: Step-Down (Buck)

Internal Switch(s):: No

Number of Outputs:: 1

Voltage - Supply (Min):: 10V

Voltage - Supply (Max):: 16.6V

Voltage - Output:: -

Current - Output / Channel:: -

Frequency:: 150kHz

Dimming:: Analog, PWM

Applications:: -

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

IRS2980STRPBF FAQ

1.How can I place an order for IRS2980STRPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRS2980STRPBF 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 IRS2980STRPBF reliable?

The price and inventory of IRS2980STRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRS2980STRPBF is usually 5 days.

3.What payment methods are accepted for IRS2980STRPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRS2980STRPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRS2980STRPBF?

IRS2980STRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRS2980STRPBF 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 IRS2980STRPBF?

For technical support, including IRS2980STRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRS2980STRPBF requirements.

6.How does Aetrix verify that IRS2980STRPBF is sourced from the original manufacturer or authorized distributors?

All IRS2980STRPBF 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 IRS2980STRPBF meets industry standards.

7.What is the process for return or replacement of IRS2980STRPBF?

All IRS2980STRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRS2980STRPBF, 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 IRS2980STRPBF part is unused and in its original packaging.

Return procedure for IRS2980STRPBF:

1.Submit a request within 90 days.

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

Tech Hub

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

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…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

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…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

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…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

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.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

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.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

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…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

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…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

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…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

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…