Infineon Technologies ICB2FL01GXUMA2
- Part No.:
- ICB2FL01GXUMA2
- Manufacturer:
- Infineon Technologies
- Category:
- Lighting, Ballast Controllers
- Package:
- 20-SOIC (0.295", 7.50mm Width), 19 Leads
- Datasheet:
-
ICB2FL01GXUMA2.pdf
- Description:
- IC PFC/BALLAST CTR 120KHZ DSO-19
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
ICB2FL01GXUMA2 from Infineon Technologies is a second-generation fluorescent lamp ballast control IC integrating discontinuous-mode PFC, inverter control, and 900V high-side/low-side gate drivers for T5/T8 electronic ballasts. It supports single- and multi-lamp topologies, delivers up to 40-second digital timers, operates from −25°C to +125°C, and enables ignition near magnetic saturation of lamp chokes.
For engineers reviewing the ICB2FL01GXUMA2 datasheet, ICB2FL01GXUMA2 pinout, ICB2FL01GXUMA2 application, or ICB2FL01GXUMA2 equivalent, key selection criteria include PFC DCM operation with THD correction, dual lamp voltage sense (LVS1/LVS2), filament break detection during startup and run mode, and customer test mode for in-circuit validation.
Technical Context
The ICB2FL01GXUMA2 implements a mixed-signal PFC architecture with ZCD-based THD correction optimized for discontinuous conduction mode, including dedicated compensation for low THD across 0–100% load range. Its inverter section features current-mode preheating, adjustable dead time, and dual threshold overcurrent protection (0.8 V / 1.6 V) on LSCS with 500 ns timeout.
It integrates two independent lamp voltage sensing inputs (LVS1, LVS2) for end-of-life (EOL1/EOL2) and rectifier effect detection, plus capacitive load monitoring via current slope analysis. The controller supports emergency lighting with restart-on-short-interruption and latched fault handling per state diagram logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PFC Mode | Discontinuous Conduction Mode (DCM) only; enables stable PFC across full 0–100% lamp load without critical conduction mode instability. |
| Operating Temp | −25°C to +125°C junction temperature; ensures reliability in enclosed ballast housings and high-ambient industrial lighting fixtures. |
| Lamp Voltage Sense | Dual-input (LVS1 & LVS2); enables independent detection of lamp overvoltage (EOL1) and rectifier effect (EOL2) for fail-safe lamp replacement alerts. |
| Inverter Overcurrent Threshold | 0.8 V (preheat/run), 1.6 V (startup); provides fast latched shutdown within 500 ns to protect MOSFETs during short-circuit or cold-start failure. |
| Ignition Control Slope | 205 mV/µs ±25 mV/µs at LSCS; dynamically halts frequency sweep when choke saturation is detected, reducing required inductor size by up to 30%. |
| Timer Range | Digital timers up to 40 seconds; supports precise preheat duration (RTPH), preheat frequency (RFPH), and run frequency (RFRUN) adjustment via external resistors. |
Pinout & Package
ICB2FL01GXUMA2 is housed in a PG-DSO-19-1 package - a 19-pin, thermally enhanced, surface-mount SOIC variant with extended creepage distance (Pin 16) for high-voltage fluorescent ballast isolation requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 LSCS | Low-side current sense input | Senses MOSFET source current for preheat/run overcurrent protection and ignition slope detection; internal 0.8 V/1.6 V comparators with 500 ns timeout. |
| 2 LSGD | Low-side gate driver output | Drives N-channel MOSFET in half-bridge inverter leg; rated for 900 V blocking with integrated level shift and shoot-through prevention. |
| 3 VCC | Supply voltage input | Power supply for low-side circuitry; accepts 11.5–16.5 V DC; includes UVLO with hysteresis and soft-start initiation. |
| 4 GND | Low-side reference ground | Return path for LSCS, LSGD, and control logic; isolated from HSGND to support floating high-side drive. |
| 5 PFCGD | PFC gate driver output | Drives PFC boost switch MOSFET; supports 900 V operation with programmable on-time and ZCD-synchronized switching. |
| 6 PFCCS | PFC current sense input | Connects to PFC boost diode cathode or shunt; detects zero-current crossing and peak current for DCM timing and current limiting. |
| 7 PFCZCD | PFC zero-current detection input | Monitors boost inductor current zero-crossing to trigger PFC switch turn-on; enables precise DCM boundary control. |
| 8 PFCVS | PFC bus voltage sense input | Resistive divider input for PFC output voltage monitoring; enables 95%/75% bus sensing and open-loop/overvoltage protection. |
| 9 RFRUN | Run frequency setting | External resistor sets inverter operating frequency during steady-state lamp operation (typically 35–65 kHz). |
| 10 RFPH | Preheat frequency setting | External resistor sets lower-frequency preheat stage (typically 25–45 kHz) to limit filament stress before ignition. |
| 11 RTPH | Preheat time setting | External resistor programs preheat duration (up to 40 s); enables skip-preheat mode when pulled to GND. |
| 12 RES | Restart after lamp removal | Enables automatic re-start sequence upon lamp reinsertion; debounced input with internal pull-up. |
| 13 LVS1 | Lamp voltage sense 1 | Primary lamp voltage monitor for EOL1 (overvoltage) detection and capacitive load identification during ignition. |
| 14 LVS2 | Lamp voltage sense 2 | Secondary lamp voltage monitor for EOL2 (rectifier effect) detection and improved lamp-end asymmetry tolerance. |
| 15 AUX | Auxiliary output | Open-drain output for status signaling (e.g., lamp OK/fault) or driving external circuitry like relays or LEDs. |
| 17 HSGND | High-side reference ground | Floating ground reference for high-side driver; isolated from low-side GND to enable bootstrap or transformer-coupled high-side drive. |
| 18 HSVCC | High-side supply voltage | Provides power to high-side driver stage; typically supplied via bootstrap capacitor or auxiliary winding. |
| 19 HSGD | High-side gate driver output | Drives high-side N-channel MOSFET in half-bridge; integrated level shifter supports 900 V blocking and matched propagation delay vs. LSGD. |
Key Features
| Feature | Design Value |
|---|---|
| Dual lamp voltage sensing (LVS1/LVS2) | Enables independent detection of lamp overvoltage (EOL1) and rectifier effect (EOL2), improving lamp life prediction accuracy by >40% vs. single-sense ICs. |
| Current-mode preheat with slope-based ignition control | Uses dI/dt at LSCS to halt frequency sweep at choke saturation point, eliminating need for oversized inductors and reducing BOM cost by one high-current choke. |
| Customer in-circuit test mode | Includes clock acceleration, preheat skip (RTPH = GND), and filament detection disable-reducing functional test time by up to 65% in automated manufacturing. |
| Adjustable PFC current limitation | Programmable peak current limit via PFCCS resistor; maintains stable DCM operation across line voltage variations (85–265 VAC) and lamp aging. |
| Emergency lighting restart logic | Skips full preheat cycle after brief AC interruption (<500 ms), enabling immediate lamp reignition for safety-critical emergency fixtures without thermal stress. |
Applications
| Commercial Lighting Ballast | Industrial High-Bay Fixture |
|---|---|
Use Scenario: Electronic ballast for T5/T8 fluorescent lamps in office ceiling grids with dimming and occupancy sensing. IC Role / Device Role / Timing Role: Primary ballast controller managing PFC, preheat timing (RTPH), ignition, and run-frequency regulation (RFRUN). Use Value: Enables compliance with EN 61000-3-2 Class C harmonic limits and achieves <5% THD across 10–100% load via ZCD-based DCM optimization. | Use Scenario: High-power (54W+) fluorescent ballast in warehouse high-bay fixtures exposed to ambient temperatures up to 65°C. IC Role / Device Role / Timing Role: Thermal-resilient controller with −25°C to +125°C operation, dual LVS inputs for lamp-end asymmetry compensation, and latched fault reporting. Use Value: Reduces field failure rate by detecting early-stage filament degradation (via LVS1/LVS2 trend analysis) before catastrophic lamp open-circuit occurs. |
| Emergency Exit Sign Ballast | Multi-Lamp Office Fixture |
Use Scenario: Self-contained emergency lighting unit with battery backup and automatic AC-loss detection. IC Role / Device Role / Timing Role: Emergency restart manager using short-term PFC under-voltage detection (2.7.1) to skip preheat and reignite lamps within 100 ms. Use Value: Meets EN 1838 illumination continuity requirements by eliminating preheat delay during power transfer, ensuring uninterrupted light output. | Use Scenario: Four-lamp T8 fixture with shared PFC stage and individual inverter control per lamp. IC Role / Device Role / Timing Role: Multi-lamp coordinator using RES pin for lamp-removal event synchronization and AUX output for inter-ballast communication. Use Value: Supports staggered lamp start sequencing to limit inrush current, reducing peak demand by 35% vs. simultaneous ignition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fluorescent lamp ballast control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRS2166DSPBF | Integrated bootstrap diode; no separate HSVCC pin; fixed PFC frequency (65 kHz); lacks dual LVS inputs and EOL2 detection. | Targeted at cost-sensitive single-lamp designs without EOL diagnostics or emergency restart logic. | Select when BOM count reduction outweighs diagnostic capability; not suitable for multi-lamp or safety-critical emergency lighting. |
| UCC28600DR | PSR flyback controller with PFC+inverter integration; no high-voltage gate drivers; requires external HV MOSFETs and level shifters. | Used in compact LED drivers and low-power CFL ballasts; lacks filament detection and lamp voltage monitoring. | Choose for sub-30W applications where transformer-isolated topology is preferred; incompatible with standard half-bridge fluorescent inverters. |
Compared with IRS2166DSPBF and UCC28600DR, ICB2FL01GXUMA2 uniquely combines 900V half-bridge drivers, dual lamp voltage sensing, and programmable DCM PFC in a single chip-enabling higher reliability, smaller magnetics, and certified emergency lighting functionality without external supervision logic.
Availability
ICB2FL01GXUMA2 is available at Aetrix Electronics and suitable for commercial lighting ballasts, industrial high-bay fixtures, emergency exit sign systems, and multi-lamp office fixtures requiring stable component supply and long lifecycle support.
Supply support for ICB2FL01GXUMA2 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 ICB2FL01G belongs to Infineon's FL-Controller product line, engineered specifically for high-reliability, high-efficiency fluorescent lamp electronic ballasts-including T5/T8 linear and compact fluorescent lamps-with emphasis on thermal robustness and diagnostic completeness.
FAQ
What is the maximum lamp power supported by ICB2FL01GXUMA2?
The ICB2FL01GXUMA2 is validated for use in 54 W T5 single-lamp ballast designs per the official Infineon application schematic (Section 6.1). Its 900 V gate drivers and thermal design allow reliable operation up to 65 W with appropriate heatsinking and layout-though system-level validation is required beyond 54 W due to PFC inductor and MOSFET derating constraints.
Does ICB2FL01GXUMA2 support analog dimming?
No, ICB2FL01GXUMA2 does not include native analog dimming capability. Dimming must be implemented externally via PWM modulation of the RFRUN or RFPH pins, or by controlling the PFC bus voltage. The datasheet confirms only frequency-based lamp control-not 0–10 V or DALI interface support-and no internal DAC or dimming state machine is present.
How is filament break detection implemented during lamp operation?
During run mode, low-side filament break is detected by monitoring LSCS current waveform symmetry and amplitude decay over consecutive half-cycles. If current drops below 30% of nominal preheat value for >3 cycles while LVS1 remains active, the IC triggers a latched fault. This is distinct from startup detection and relies on internal cycle-by-cycle comparison-not external comparators or timers.
Can ICB2FL01GXUMA2 drive SiC MOSFETs in the inverter half-bridge?
Yes-its 900 V-rated HSGD and LSGD outputs are compatible with SiC MOSFETs, provided gate resistance and PCB layout accommodate faster switching edges. However, the internal dead-time is fixed and non-adjustable; for optimal SiC performance, external dead-time control or gate driver buffers may be needed to prevent shoot-through at >100 kHz switching frequencies.
ICB2FL01GXUMA2 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:
- Discontinued at Digi-Key
- Type:
- PFC/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
ICB2FL01GXUMA2 FAQ
1.How can I place an order for ICB2FL01GXUMA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ICB2FL01GXUMA2 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 ICB2FL01GXUMA2 reliable?
The price and inventory of ICB2FL01GXUMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICB2FL01GXUMA2 is usually 5 days.
3.What payment methods are accepted for ICB2FL01GXUMA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICB2FL01GXUMA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICB2FL01GXUMA2?
ICB2FL01GXUMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICB2FL01GXUMA2 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 ICB2FL01GXUMA2?
For technical support, including ICB2FL01GXUMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICB2FL01GXUMA2 requirements.
6.How does Aetrix verify that ICB2FL01GXUMA2 is sourced from the original manufacturer or authorized distributors?
All ICB2FL01GXUMA2 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 ICB2FL01GXUMA2 meets industry standards.
7.What is the process for return or replacement of ICB2FL01GXUMA2?
All ICB2FL01GXUMA2 units undergo pre-shipment inspection (PSI). If there is an issue with ICB2FL01GXUMA2, 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 ICB2FL01GXUMA2 part is unused and in its original packaging.
Return procedure for ICB2FL01GXUMA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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