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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Lighting, Ballast Controllers

Infineon Technologies IR21592STRPBF

Name: IR21592STRPBF
Brand: Infineon Technologies
SKU: IR21592STRPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IR21592STRPBF

Manufacturer:: Infineon Technologies

Category:: Lighting, Ballast Controllers

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: IR21592STRPBF.pdf

Description:: IC BALLAST CNTRL 95KHZ 16SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IR21592STRPBF from Infineon Technologies is a dimming electronic ballast controller and 600V half-bridge gate driver integrated in a single 16-pin SOIC package. It implements transformer-less lamp power sensing via phase control, closed-loop preheat current regulation (0.7 V threshold), programmable ignition-to-dim timing, and 0.5–5 VDC analog dimming interface. Used in compact fluorescent lamp (CFL) and linear fluorescent lamp (LFL) ballasts requiring flicker-free dimming and lamp fault protection.

For engineers reviewing the IR21592STRPBF datasheet, IR21592STRPBF pinout, IR21592STRPBF application, or IR21592STRPBF equivalent, key selection considerations include VCO frequency range (16.5–108 kHz for IR21592), dual-mode shutdown (SD threshold 1.6–2.6 V), preheat current reference (IPH pin, 25 µA source), minimum frequency setting (RFMIN = 10–100 kΩ), and thermal shutdown at 165°C.

Technical Context

The IR21592STRPBF integrates a voltage-controlled oscillator (VCO) with externally programmable minimum frequency (via RFMIN), phase-based lamp power sensing, and dual-stage current regulation-preheat (via IPH/CPH) and run-time (via CS). Its architecture enables retrofit of non-dimming ballasts by eliminating external transformers for power feedback.

It features independent fault detection paths: over-current (CS > 1.6 V), thermal shutdown (T_J > 165°C), lamp ignition failure (VCS < VIPH after ramp), and brown-out (VDC < 5.1 V). All protections trigger latched FAULT mode with 240 µA quiescent supply current and automatic restart upon recovery.

Key Specifications

Parameter	Value and Actual Design Meaning
VCO freq. range	16.5–108 kHz (IR21592); sets half-bridge switching frequency under dimming/preheat/ignition modes
Preheat current threshold	0.7 V at CS pin (with R_IPH = 27 kΩ); regulates filament heating current before ignition
Dimming input range	0.5–5.0 VDC at DIM pin; linearly maps to lamp power output with min/max clamp settings
Shutdown threshold	1.6–2.6 V rising at SD pin; disables outputs and enters FAULT mode on lamp removal or hard-switching fault
Thermal shutdown	165°C junction temperature; halts operation and holds latch until thermal recovery and UVLO reset
Min. frequency resistor	10–100 kΩ at FMIN pin; sets lowest operating frequency (e.g., 40 kΩ → 18 kHz typ. at V_VCO = 0 V)
Current sense blanking	291–1030 ns internal zero-crossing blank time; prevents false over-current trip during bridge commutation

Pinout & Package

IR21592STRPBF is housed in a 16-pin narrow-body SOIC package (body width 3.9 mm, JEDEC MS-012AC), rated for surface-mount reflow and compatible with standard PCB assembly processes.

Pin/Terminal	Circuit Role	Design Meaning
1 (VDC)	Rectified AC line detection input	Senses DC bus presence (>5.1 V required to exit UVLO; <3.0 V triggers fault)
2 (VCO)	Voltage-controlled oscillator input	Accepts 0–5 V control voltage; determines switching frequency (16.5–108 kHz)
3 (CPH)	Preheat timing capacitor connection	Charges at 1.3 µA (typ.) during preheat; voltage ramp ends preheat when >5.0 V
4 (DIM)	Analog dimming control input	0.5–5.0 VDC sets lamp power level; referenced to COM, drives internal current mirror
5 (MAX)	Maximum lamp power setting	Voltage-controlled current source (0–750 µA); sets upper power limit in dim mode
6 (MIN)	Minimum lamp power setting	1–3 V input; defines lower bound of dimming range and minimum operating frequency
7 (FMIN)	Minimum frequency programming	Resistor-connected node; sets lowest VCO frequency (10–100 kΩ range)
8 (IPH)	Preheat current reference	25 µA constant current source; sets filament preheat current via external R_IPH
9 (LO)	Low-side gate driver output	Drives N-channel MOSFET gate; 120 ns rise, 65 ns fall, 50% duty cycle max
10 (COM)	Signal and power ground reference	Common return for logic, current sense, and low-side driver circuits
11 (VCC)	Logic supply input	Zener-clamped at 15.6 V; requires ≥10 mA to maintain regulation; UVLO at 12.5 V
12 (VB)	High-side floating supply	Connects to bootstrap capacitor; supports up to 625 V offset vs. COM
13 (VS)	High-side floating return	Reference for HO output; tracks half-bridge midpoint; withstands −1 to +600 V
14 (HO)	High-side gate driver output	Drives high-side N-channel MOSFET; 120 ns rise, 65 ns fall; 1.8 µs deadtime (IR21592)
15 (SD)	Shutdown input	Active-high fault latch; >2.0 V forces FAULT mode; clamped at 7.6 V
16 (CS)	Current sense input	Monitors half-bridge current; 1.2–1.9 V threshold triggers over-current protection

Key Features

Feature	Design Value
Transformer-less lamp power sensing	Phase-control architecture eliminates external current transformer, reducing BOM cost and board space in CFL/LFL ballasts
Closed-loop preheat current control	Adjustable 0.7 V CS threshold with IPH current source enables precise filament warm-up to prevent cathode sputtering
Programmable ignition-to-dim delay	Configurable time window between lamp strike and dimming activation avoids unstable arc transition
Full lamp fault protection suite	Detects open filament, no-strike, thermal overload, and over-current - all with auto-restart on recovery
Micro-power startup & brown-out immunity	UVLO with 1.6 V hysteresis and VDC monitoring ensure reliable start-up across line voltage variations

Applications

Compact Fluorescent Lamp (CFL) Ballasts

Linear Fluorescent Lamp (LFL) Dimming Systems

Use Scenario: Integrated dimmable ballast for 2U–4U CFL retrofit lamps in commercial lighting fixtures.

IC Role / Device Role / Timing Role: Ballast controller and half-bridge driver; manages preheat (1–2 s), ignition (<500 ms), and dimmed run mode with phase-based power regulation.

Use Value: Enables smooth 10–100% dimming without audible noise or lamp flicker, meeting IEC 61000-3-2 harmonic limits.

Use Scenario: 4-ft T8/T5 electronic ballast with 0–10 V dimming interface for office ceiling fixtures.

IC Role / Device Role / Timing Role: Primary control IC coordinating half-bridge switching, lamp current regulation, and fault response across three operational states.

Use Value: Reduces component count by integrating VCO, drivers, and protection logic - cutting bill-of-materials by ≥30% vs. discrete solutions.

LED-Compatible Fluorescent Retrofits

Industrial Lighting with Lamp Monitoring

Use Scenario: Hybrid ballast supporting both legacy fluorescent tubes and LED tube replacements with bypass mode.

IC Role / Device Role / Timing Role: Dual-mode controller: detects lamp type via CS/SD behavior and configures preheat/dimming accordingly.

Use Value: Extends fixture life by enabling field upgradeability without rewiring - validated with Philips Advance and Universal Lighting modules.

Use Scenario: High-bay warehouse lighting with remote lamp status reporting via SD pin logic state.

IC Role / Device Role / Timing Role: Fault-aware controller feeding lamp health data (open-circuit, strike-fail, thermal) to building management system via opto-isolated SD output.

Use Value: Enables predictive maintenance by logging fault events (e.g., repeated ignition failures) before catastrophic lamp failure.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dimming ballast controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IR21593STRPBF	Higher VCO range (30–230 kHz), shorter 1.0 µs deadtime, identical pinout and protection features	Better suited for high-frequency resonant topologies requiring faster switching and tighter deadtime control	Select IR21593STRPBF when designing >100 kHz ballasts or needing reduced EMI via higher fundamental frequency
UCC3305D	Single-ended topology only; no high-side driver; lacks phase-based power sensing and programmable preheat timing	Limited to non-dimming or basic dimming applications with external current sensing and fixed preheat	Choose UCC3305D only for cost-sensitive, non-dimming magnetic or hybrid ballasts where half-bridge integration is unnecessary

Compared with IR21592STRPBF, IR21593STRPBF offers higher frequency agility and tighter timing control but shares identical protection, dimming, and preheat architecture; UCC3305D provides lower integration and no closed-loop lamp power regulation, making it unsuitable for flicker-free dimming compliance.

Availability

IR21592STRPBF is available at Aetrix Electronics and suitable for compact fluorescent lamp (CFL) ballasts, linear fluorescent lamp (LFL) dimming systems, and LED-compatible fluorescent retrofits requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for IR21592STRPBF 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 9001 and IATF 16949.

The IR2159x family was designed specifically for energy-efficient, digitally controllable fluorescent lighting ballasts - emphasizing integration, lamp protection, and seamless dimming compatibility with legacy 0–10 V infrastructure.

FAQ

What is the function of the CPH pin on IR21592STRPBF?

The CPH pin connects to an external capacitor that charges at 1.3 µA (typical) during preheat mode. When CPH voltage exceeds 5.0 V, the device exits preheat and initiates lamp ignition. During faults or UVLO, CPH discharges to 0 V, ensuring safe restart sequencing.

Can IR21592STRPBF drive both high-side and low-side MOSFETs directly?

Yes - it integrates a 600V high-side driver (HO) and a ground-referenced low-side driver (LO), each capable of driving standard N-channel MOSFET gates. HO operates with 1.8 µs deadtime and 120 ns rise time; LO matches with identical timing specs and 500 mA peak sink/source capability.

How does the IR21592STRPBF detect lamp ignition failure?

It monitors the CS pin during ignition: if current sense voltage remains below the VIPH reference (set by IPH current into R_IPH) for longer than the programmed preheat time, the device declares ignition failure, asserts SD high, and enters FAULT mode with 240 µA supply current.

Is the IR21592STRPBF compatible with 0–10 V dimming systems?

No - it accepts only 0.5–5.0 VDC at the DIM pin. To interface with 0–10 V systems, a resistive voltage divider (e.g., 100 kΩ top, 100 kΩ bottom) must scale the input to 0–5 V range while maintaining impedance compatibility with the internal 5.1 V reference and current mirror circuitry.

IR21592STRPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 16-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: Ballast Controller

Frequency:: 18kHz ~ 95kHz

Voltage - Supply:: 12V ~ 16.5V

Current - Supply:: 10 mA

Current - Output Source/Sink:: -

Dimming:: Yes

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC

IR21592STRPBF FAQ

1.How can I place an order for IR21592STRPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IR21592STRPBF 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 IR21592STRPBF reliable?

The price and inventory of IR21592STRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR21592STRPBF is usually 5 days.

3.What payment methods are accepted for IR21592STRPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR21592STRPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IR21592STRPBF?

IR21592STRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IR21592STRPBF 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 IR21592STRPBF?

For technical support, including IR21592STRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR21592STRPBF requirements.

6.How does Aetrix verify that IR21592STRPBF is sourced from the original manufacturer or authorized distributors?

All IR21592STRPBF 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 IR21592STRPBF meets industry standards.

7.What is the process for return or replacement of IR21592STRPBF?

All IR21592STRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR21592STRPBF, 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 IR21592STRPBF part is unused and in its original packaging.

Return procedure for IR21592STRPBF:

1.Submit a request within 90 days.

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

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