Infineon Technologies ICB2FL02G
- Part No.:
- ICB2FL02G
- Manufacturer:
- Infineon Technologies
- Category:
- Lighting, Ballast Controllers
- Package:
- 20-SOIC (0.295", 7.50mm Width), 19 Leads
- Datasheet:
-
ICB2FL02G.pdf
- Description:
- IC BALLAST CNTRL 120KHZ DSO-19
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
ICB2FL02G from Infineon Technologies is a 2nd-generation smart ballast control IC for fluorescent lamp ballasts, integrating discontinuous-mode PFC, inverter control, and a 900V half-bridge driver with coreless transformer technology. It supports T5/T8 single- and multi-lamp designs, delivers ±0.5% frequency accuracy over –25°C to +125°C, enables customer in-circuit test mode, and achieves <150 mW standby loss.
For engineers reviewing the ICB2FL02G datasheet, ICB2FL02G pinout, ICB2FL02G application, or ICB2FL02G equivalent, key selection considerations include its integrated digital timers (up to 40 s), adjustable preheat/restart timing via external resistors, dual lamp voltage sense inputs (LVS1/LVS2), EOL/rectifier effect detection, and capacitive load protection with self-adapting dead time.
Technical Context
The ICB2FL02G implements a mixed-signal PFC controller operating in discontinuous conduction mode across 0–100% load range, with ZCD-based THD correction and optional DCM-specific compensation. Its inverter section features current-mode preheating, ignition slope detection (205 mV/µs ±25 mV/µs), and latched shutdown on LSCS overcurrent (>0.8 V for >500 ns).
It integrates dual high-side/low-side gate drivers (HSGD/LSGD) with 900V level-shift capability, two lamp voltage monitoring inputs (LVS1/LVS2) with open-filament HS/LS discrimination, and a built-in clock-accelerated test mode for production testing - all configured exclusively via external resistors, no programming required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PFC Mode | Discontinuous Conduction Mode (DCM) only; supports full 0–100% load range without mode switching. |
| Frequency Accuracy | ±0.5% over –25°C to +125°C; eliminates need for external crystal or trimming in lamp timing-critical applications. |
| Standby Power | <150 mW at 230 VAC; meets EU ErP Lot 17 lamp ballast efficiency requirements. |
| Lamp Voltage Sensing | Dual inputs (LVS1, LVS2) with independent thresholds for EOL1 (lamp overvoltage) and EOL2 (rectifier effect) detection. |
| Ignition Slope Detection | 205 mV/µs ±25 mV/µs at LSCS pin; enables reliable cold-start ignition near magnetic saturation of lamp inductors. |
| Test Mode Support | Built-in clock acceleration and preheat skip (RTPH = GND); reduces automated tester time by >40% in high-volume manufacturing. |
| Protection Features | Integrated detection for open filament (HS/LS), capacitive load, end-of-life, rectifier effect, and PFC bus under/overvoltage - all latched or auto-restart configurable. |
Pinout & Package
ICB2FL02G is housed in a PG-DSO-19-1 (300-mil) package with creepage-enhanced layout for high-voltage fluorescent ballast applications. The 19-pin exposed-pad SO package provides thermal robustness and isolation between low-side and high-side sections.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 LSCS | Low-side current sense input | Senses MOSFET source current for preheat/run overcurrent protection (0.8 V threshold, 500 ns timeout) and ignition slope detection. |
| 2 LSGD | Low-side gate driver output | Drives N-channel MOSFET in low-side leg of half-bridge; logic-level compatible, 1 A peak sink/source. |
| 3 VCC | Main supply input | Power supply for internal circuitry; UVLO at 11.5 V (on), 10.5 V (off); requires local 10 µF decoupling. |
| 4 GND | Low-side reference ground | Return path for LSCS, LSGD, and control logic; isolated from HSGND to prevent noise coupling. |
| 5 PFCGD | PFC gate driver output | Drives PFC boost MOSFET; 1 A peak drive strength, optimized for fast turn-on/turn-off in DCM. |
| 6 PFCCS | PFC current sense input | Connects to shunt resistor; detects zero-current crossing and peak current for DCM timing and regulation. |
| 7 PFCZCD | PFC zero-current detection | Input for boost inductor demagnetization sensing; critical for accurate DCM boundary timing. |
| 8 PFCVS | PFC bus voltage sense | Monitors DC bus for overvoltage (95% threshold) and undervoltage (75% threshold) protection. |
| 9 RFRUN | Run frequency setting | Resistor-to-ground sets nominal lamp operating frequency (typically 40–70 kHz). |
| 10 RFPH | Preheat frequency setting | Resistor-to-ground sets lower preheat frequency (typically 25–45 kHz) to reduce filament stress. |
| 11 RTPH | Preheat time setting | Resistor-to-ground configures preheat duration (adjustable up to 40 s); shorting to GND skips preheat. |
| 12 RES | Restart after lamp removal | Enables automatic restart when lamp is reinserted; pulled high internally, externally pulled low to disable. |
| 13 LVS1 | Lamp voltage sense 1 | Primary input for lamp voltage monitoring; used for EOL1 (overvoltage) and open-filament HS detection. |
| 14 LVS2 | Lamp voltage sense 2 | Secondary input for rectifier-effect (EOL2) and open-filament LS detection; improves fault discrimination. |
| 15 AUX | Auxiliary output | Open-drain output for status signaling (e.g., lamp OK/fault) or driving auxiliary circuitry. |
| 17 HSGND | High-side ground reference | Isolated return for high-side driver section; tied to bootstrap capacitor negative terminal. |
| 18 HSVCC | High-side supply input | Bootstrap-supplied voltage for high-side driver; operates up to 600 V referenced to HSGND. |
| 19 HSGD | High-side gate driver output | Drives N-channel MOSFET in high-side leg; integrated level shifter supports 900 V blocking capability. |
Key Features
| Feature | Design Value |
|---|---|
| Digital timer integration | On-chip timers support preheat (up to 40 s), run frequency, and restart delay - eliminating external RC networks and improving temperature stability. |
| Capacitive load protection | Self-adapting dead time adjustment prevents shoot-through during capacitive lamp operation below resonance, enhancing reliability in aging lamps. |
| Emergency lighting support | Short-interruption restart (skipped preheat) and long-term PFC bus undervoltage handling enable seamless transition to battery-backed emergency mode. |
| Dimming-compatible thresholds | Dedicated LVS1/LVS2 thresholds and adjustable detection windows allow stable analog/digital dimming down to 1% light output without false EOL triggers. |
| THD optimization in DCM | Optional ZCD-based compensation loop reduces AC line current THD to <10% even at light loads, meeting IEC 61000-3-2 Class C. |
Applications
| T5/T8 Fluorescent Lamp Ballast | Multi-Lamp Commercial Lighting |
|---|---|
Use Scenario: Single-tube 28–54 W T5/T8 fluorescent fixture with electronic ballast for office ceiling grid. IC Role / Device Role / Timing Role: Primary controller managing PFC, preheat timing, ignition slope, and resonant inverter switching - all resistor-configured. Use Value: Enables compact, low-BOM-count design with <150 mW standby loss and ±0.5% frequency stability across ambient temperature swings. | Use Scenario: 4-lamp commercial troffer using shared PFC stage and individual inverter channels. IC Role / Device Role / Timing Role: Synchronized multi-lamp controller with independent LVS1/LVS2 monitoring per lamp and shared RFRUN/RFPH configuration. Use Value: Reduces component count by 30% vs. discrete controllers; supports staggered start-up to limit inrush current. |
| Emergency Lighting Systems | Dimmable Architectural Lighting |
Use Scenario: UL 924-compliant emergency egress fixture with battery backup and automatic lamp test. IC Role / Device Role / Timing Role: Dual-mode controller supporting normal AC operation and battery-powered emergency mode with skipped preheat restart. Use Value: Eliminates need for separate emergency control IC; built-in test mode accelerates factory functional testing by >40%. | Use Scenario: 0–10 V or DALI-dimmable fluorescent retrofit kit for heritage building upgrades. IC Role / Device Role / Timing Role: Dimming-aware controller with adaptive LVS thresholds and EOL immunity during low-light operation. Use Value: Maintains lamp life >15,000 h at 10% dim level by preventing false rectifier-effect shutdowns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fluorescent lamp ballast controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRS2166D | Integrated 600 V half-bridge driver + PFC controller; no dedicated LVS2 input or EOL2 detection; analog-only timing. | Lacks dual-lamp voltage sense and rectifier-effect discrimination; less suitable for high-reliability T5 multi-lamp systems. | Select when BOM cost is primary concern and EOL2 immunity is not required. |
| UCC28600 | PSR flyback controller with PFC; no half-bridge driver or lamp-specific protections; requires external gate drivers. | Designed for LED drivers, not fluorescent ballasts; lacks filament detection, ignition slope sensing, or LVS inputs. | Not recommended for fluorescent replacement; only consider if redesigning to LED topology. |
Compared with IRS2166D and UCC28600, the ICB2FL02G uniquely combines dual-lamp-voltage monitoring, EOL2/rectifier-effect discrimination, and resistor-programmable digital timers - enabling higher system reliability and reduced test overhead in T5/T8 fluorescent ballasts.
Availability
ICB2FL02G is available at Aetrix Electronics and suitable for T5/T8 fluorescent lamp ballasts, multi-lamp commercial fixtures, emergency lighting systems, and dimmable architectural lighting requiring stable component supply and long-term lifecycle support.
Supply support for ICB2FL02G 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 AG is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with global R&D and manufacturing infrastructure.
The ICB2FL02G belongs to Infineon's 2nd-generation FL-Controller product line, designed specifically for high-efficiency, high-reliability fluorescent lamp ballasts with minimal external components and resistor-only configuration.
FAQ
What is the maximum preheat time supported by ICB2FL02G?
The ICB2FL02G supports preheat durations up to 40 seconds, set via an external resistor on the RTPH pin. This allows precise control of filament warm-up time to extend lamp life while avoiding excessive thermal stress. The timer is fully integrated and temperature-compensated, delivering ±3% accuracy across –25°C to +125°C without external components.
Does ICB2FL02G require an external microcontroller or programming interface?
No. The ICB2FL02G is configured entirely through external resistors (RFRUN, RFPH, RTPH) and passive components - no firmware, programming, or serial interface is needed. All functions including PFC control, inverter timing, protection thresholds, and test mode activation are hardwired via pin-strapping and analog inputs.
How does the ICB2FL02G detect end-of-life (EOL) conditions in fluorescent lamps?
The ICB2FL02G uses two independent detection methods: EOL1 monitors lamp voltage via LVS1 to trigger on overvoltage (indicating cathode depletion), while EOL2 uses LVS2 to identify rectifier effect - asymmetric current flow caused by emitter degradation. Both are latched faults with configurable auto-restart behavior per application requirements.
Can ICB2FL02G drive MOSFETs directly without external gate drivers?
Yes. The ICB2FL02G integrates both high-side (HSGD) and low-side (LSGD) gate drivers rated for 900 V blocking and 1 A peak current, capable of directly driving standard 600–900 V N-channel MOSFETs in half-bridge configurations. No external drivers are needed for typical 54 W T5 or 36 W T8 ballast designs.
ICB2FL02G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width), 19 Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Ballast Controller
- Frequency:
- 20kHz ~ 120kHz
- Voltage - Supply:
- 10.6V ~ 17.5V
- Current - Supply:
- 4.2 mA
- Current - Output Source/Sink:
- -
- Dimming:
- No
- Operating Temperature:
- -25°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-19-1
ICB2FL02G FAQ
1.How can I place an order for ICB2FL02G through Aetrix?
Please submit a Request for Quotation (RFQ) for ICB2FL02G 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 ICB2FL02G reliable?
The price and inventory of ICB2FL02G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICB2FL02G is usually 5 days.
3.What payment methods are accepted for ICB2FL02G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICB2FL02G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICB2FL02G?
ICB2FL02G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICB2FL02G 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 ICB2FL02G?
For technical support, including ICB2FL02G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICB2FL02G requirements.
6.How does Aetrix verify that ICB2FL02G is sourced from the original manufacturer or authorized distributors?
All ICB2FL02G 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 ICB2FL02G meets industry standards.
7.What is the process for return or replacement of ICB2FL02G?
All ICB2FL02G units undergo pre-shipment inspection (PSI). If there is an issue with ICB2FL02G, 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 ICB2FL02G part is unused and in its original packaging.
Return procedure for ICB2FL02G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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