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

Infineon Technologies IR21592SPBF

Name: IR21592SPBF
Brand: Infineon Technologies
SKU: IR21592SPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IR21592SPBF

Manufacturer:: Infineon Technologies

Category:: Lighting, Ballast Controllers

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

Datasheet:: IR21592SPBF.pdf

Description:: IC BALLAST CNTRL 95KHZ 16SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IR21592SPBF from Infineon Technologies is a dimming electronic ballast controller and 600V half-bridge gate driver IC in a single 16-pin SOIC package. It integrates transformer-less lamp power sensing, closed-loop preheat current control (0.7 V threshold), programmable ignition-to-dim time, and 0.5–5 VDC analog dimming interface for fluorescent lamp systems. Used in commercial dimmable lighting ballasts requiring lamp fault protection and automatic restart.

For engineers reviewing the IR21592SPBF datasheet, IR21592SPBF pinout, IR21592SPBF application, or IR21592SPBF equivalent, key selection criteria include its VCO frequency range (16.5–108 kHz), integrated shutdown logic with 2.0 V rising threshold, 1.8 µs deadtime (IR21592), 15.6 V zener-clamped VCC, and phase-control-based lamp power regulation without external transformer sensing.

Technical Context

The IR21592SPBF implements a voltage-controlled oscillator (VCO) architecture with externally programmable minimum frequency (via RFMIN resistor, 10–100 kΩ), where VCO input voltage (0–5 V) directly sets operating frequency across two ranges: 16.5–26 kHz at low end and 73–108 kHz at high end. Preheat mode uses CPH pin charging at 1.3 µA typical to control ramp time before ignition.

Phase-control lamp power sensing eliminates need for current-sense transformers by comparing line voltage (VDC pin) and lamp current zero-crossing (CS pin), enabling retrofit of non-dimming ballasts. Protection logic includes thermal shutdown at 165°C, overcurrent detection at 1.6 V on CS, and brown-out lockout with 12.5 V UVLO threshold and 1.6 V hysteresis.

Key Specifications

Parameter	Value and Actual Design Meaning
VCO freq range	16.5–108 kHz; sets half-bridge switching frequency via analog voltage (0–5 V) and RFMIN resistor
Dim input range	0.5–5.0 VDC; linearly maps to lamp power output with independent MIN/MAX voltage references
Preheat current threshold	0.7 V on CS pin; regulates filament preheat current using external RIPH resistor
Shutdown threshold	2.0 V rising on SD pin; latches fault state until reset, supporting lamp removal or strike failure detection
VCC clamp voltage	15.6 V zener; protects internal supply when driven from unregulated DC bus, limiting max VCC stress
Deadtime (LO/HO)	1.8 µs; ensures non-overlap between high- and low-side gate drive pulses to prevent shoot-through
Thermal shutdown	165°C junction temperature; disables outputs and enters FAULT mode with 240 µA quiescent current

Pinout & Package

IR21592SPBF is housed in a 16-pin narrow-body SOIC package (body width 3.9 mm, JEDEC MS-012AC), surface-mount compatible with standard reflow profiles and rated for industrial temperature range (−40°C to +125°C).

Pin/Terminal	Circuit Role	Design Meaning
1 (VDC)	Rectified AC line sense input	Detects presence and level of rectified mains voltage for UVLO and phase control reference
2 (VCO)	Voltage-controlled oscillator input	Analog control node setting half-bridge frequency; 0–5 V range maps to full VCO output span
3 (CPH)	Preheat timing capacitor connection	Charges at 1.3 µA during preheat; voltage ramp determines preheat duration before ignition
4 (DIM)	Analog dimming control input	0.5–5 VDC signal sets lamp power level; referenced to internal 1.0 V and 3.0 V MIN/MAX thresholds
5 (MAX)	Maximum lamp power setting	Voltage-controlled current source (0–750 µA) defining upper dimming limit
6 (MIN)	Minimum lamp power setting	1.0–3.0 V input establishing lower dimming bound, independent of DIM pin voltage
7 (FMIN)	Minimum frequency programming	Resistor-connected node setting lowest VCO frequency (10–100 kΩ yields 16.5–26 kHz base)
8 (IPH)	Preheat current reference	Sinks 25 µA to set peak preheat current threshold via external RIPH resistor
9 (LO)	Low-side gate driver output	Drives N-channel MOSFET gate with 500 mA sink/source capability and 120 ns rise time
10 (COM)	Signal and power ground reference	Common return for logic, low-side driver, and current sense circuitry
11 (VCC)	Logic supply input	14–15.6 V nominal; internally clamped at 15.6 V; powers internal logic and LO driver
12 (VB)	High-side floating supply	Connects to bootstrap capacitor; supplies HO driver in floating domain up to 600 V offset
13 (VS)	High-side floating return	Reference node for HO output; tracks half-bridge switch node voltage during operation
14 (HO)	High-side gate driver output	Drives high-side N-channel MOSFET gate with 500 mA sink/source and 180 ns fall time
15 (SD)	Shutdown input	Active-high fault latch: >2.0 V triggers FAULT mode and disables both gate outputs
16 (CS)	Current sense input	Monitors lamp current via shunt; 1.6 V threshold triggers overcurrent protection and ignition detection

Key Features

Feature	Design Value
Transformer-less lamp power sensing	Uses phase comparison between VDC and CS zero-crossings to regulate lamp power without isolation transformer, reducing BOM cost and size
Closed-loop preheat current control	Maintains precise filament preheat current via 0.7 V CS threshold and IPH-controlled RIPH, preventing cold-start lamp damage
Programmable ignition-to-dim time	Adjustable delay between lamp ignition and dimming activation using external timing components on CPH and FMIN pins
Full lamp fault protection suite	Detects failed lamp strike, open filament, thermal overload (165°C), and overcurrent - all triggering automatic restart after fault clearance
Zener-clamped VCC supply	Internal 15.6 V clamp allows direct connection to unregulated DC bus, eliminating need for external LDO or regulator

Applications

Commercial Dimmable Fluorescent Ballasts

LED Retrofit-Compatible Fluorescent Fixtures

Use Scenario: Office building lighting systems requiring smooth 0–10 V or DALI-compatible dimming of T5/T8 fluorescent lamps.

IC Role / Device Role / Timing Role: Ballast controller and half-bridge driver managing preheat, ignition, dimming, and fault recovery sequences.

Use Value: Enables transformer-less power sensing and closed-loop preheat control, improving lamp life by >30% versus open-loop designs and reducing component count by 4+ parts.

Use Scenario: Retrofit kits replacing magnetic ballasts in legacy fixtures while adding digital dimming and diagnostics.

IC Role / Device Role / Timing Role: Core timing and protection controller coordinating half-bridge switching, lamp status monitoring, and shutdown response.

Use Value: Integrated brown-out protection and automatic restart allow reliable operation under unstable AC line conditions common in aging infrastructure.

Hospitality Lighting Control Systems

Industrial High-Bay Lamp Controllers

Use Scenario: Hotel room lighting with occupancy-sensing dimming and scheduled power cycling.

IC Role / Device Role / Timing Role: Dimming interface processor and lamp health monitor, interpreting 0.5–5 VDC control signals and reporting fault states.

Use Value: Programmable MIN/MAX dim limits ensure consistent light levels across rooms, while thermal shutdown prevents fixture overheating during extended use.

Use Scenario: Warehouse high-bay fixtures operating 16+ hours/day under variable ambient temperatures.

IC Role / Device Role / Timing Role: Robust half-bridge driver and thermal management unit ensuring stable lamp operation despite junction temperature swings from −40°C to +125°C.

Use Value: 165°C thermal shutdown and 1.8 µs deadtime prevent MOSFET failure during thermal cycling, extending mean time between failures by ≥2×.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IR21593SPBF	Shorter 1.0 µs deadtime, higher max VCO frequency (230 kHz), different FMIN scaling; same pinout and package	Better suited for high-frequency resonant ballasts requiring faster switching and tighter deadtime control	Select IR21593SPBF when designing for >100 kHz operation or needing reduced propagation delay in high-efficiency topologies
UCC3305D	Single-ended controller only (no integrated high-side driver), no VCO architecture, uses RC oscillator; requires external high-side driver	Limited to simpler, lower-cost non-resonant ballasts without half-bridge integration	Choose UCC3305D only if system already uses discrete high-side drivers and requires minimal feature set for basic dimming

Compared with IR21593SPBF, the IR21592SPBF offers longer deadtime for enhanced shoot-through margin and lower max frequency for improved EMI control; versus UCC3305D, it delivers full half-bridge integration and phase-control sensing-eliminating four external components and enabling transformer-less design.

Availability

IR21592SPBF is available at Aetrix Electronics and suitable for commercial lighting ballasts, LED retrofit systems, hospitality dimming controls, and industrial high-bay lamp controllers requiring stable component supply and long-term lifecycle support.

Supply support for IR21592SPBF 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 electronic fluorescent ballast control, integrating gate driving, lamp regulation, and comprehensive fault protection into a single IC to replace multi-chip solutions in commercial lighting systems.

FAQ

What is the function of the CPH pin on the IR21592SPBF?

The CPH pin serves as the preheat timing capacitor node. During preheat mode, it charges at a constant 1.3 µA current sourced from IPH. When CPH voltage reaches 5.0 V, the device transitions from preheat to ignition mode. Its voltage ramp rate determines preheat duration, enabling precise filament warm-up before high-voltage strike.

How does the IR21592SPBF detect lamp ignition?

Lamp ignition is detected by monitoring the CS pin voltage relative to the IPH reference. When lamp current begins flowing after preheat, CS voltage rises above VIPH (typically 0.5 V), then falls below it - this falling edge triggers ignition detection. The internal latch confirms successful strike and initiates the ignition-to-dim delay before entering dim mode.

Can the IR21592SPBF operate without a bootstrap capacitor?

No. The VB and VS pins require a bootstrap capacitor to supply the high-side gate driver (HO). Without it, the HO output cannot sustain voltage above the switching node, causing loss of high-side drive and immediate half-bridge failure. Typical value is 0.1 µF ceramic placed between VB and VS with low-ESR path.

What protection features are built into the IR21592SPBF?

The IC integrates six protection mechanisms: (1) thermal shutdown at 165°C, (2) overcurrent detection at 1.6 V on CS, (3) undervoltage lockout at 12.5 V on VCC, (4) brown-out detection on VDC (<5.1 V), (5) shutdown latch triggered by >2.0 V on SD, and (6) automatic restart after fault clearance. All protections disable gate outputs and enter FAULT mode with 240 µA quiescent current.

IR21592SPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

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

Packaging:: Tube

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

IR21592SPBF FAQ

1.How can I place an order for IR21592SPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IR21592SPBF 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 IR21592SPBF reliable?

The price and inventory of IR21592SPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR21592SPBF is usually 5 days.

3.What payment methods are accepted for IR21592SPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR21592SPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IR21592SPBF?

IR21592SPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IR21592SPBF 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 IR21592SPBF?

For technical support, including IR21592SPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR21592SPBF requirements.

6.How does Aetrix verify that IR21592SPBF is sourced from the original manufacturer or authorized distributors?

All IR21592SPBF 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 IR21592SPBF meets industry standards.

7.What is the process for return or replacement of IR21592SPBF?

All IR21592SPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR21592SPBF, 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 IR21592SPBF part is unused and in its original packaging.

Return procedure for IR21592SPBF:

1.Submit a request within 90 days.

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

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