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Infineon Technologies ICLS8082GXUMA1
- Part No.:
- ICLS8082GXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- LED Drivers
- Package:
- 12-BSOP (0.295", 7.50mm Width)
- Datasheet:
-
ICLS8082GXUMA1.pdf
- Description:
- IC LED DRIVER OFFL PWM 12DSO
- Quantity:
- Payment:
- Shipping:
Inventory:2,011
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Product details
Overview
ICLS8082GXUMA1 from Infineon Technologies is a phase-cut-dimmable, quasi-resonant (QR) primary-side LED driver IC with integrated PFC control. It delivers >99% power factor, supports 5–50 W LED loads, features HV startup with constant-current VCC precharge, and enables precise PWM-based dimming for trailing/leading-edge dimmers in retrofit LED bulbs and downlights.
For engineers reviewing the ICLS8082GXUMA1 datasheet, ICLS8082GXUMA1 pinout, ICLS8082GXUMA1 application, or ICLS8082GXUMA1 equivalent, key selection criteria include QR flyback timing accuracy, ZCV-based zero-current switching, foldback-corrected peak current control, VCC UV/OV lockout, and compatibility with standard TRIAC/ELV dimmers in AC mains-powered lighting systems.
Technical Context
The ICLS8082GXUMA1 implements primary-side regulation using zero-crossing detection (ZCV) and voltage-sense (VR) feedback to synchronize MOSFET switching at valley points for quasi-resonant operation. Its internal PWM comparator compares CS-derived peak current against a VR-scaled reference to achieve input-line-proportional current shaping for active PFC.
It integrates digital soft-start, cycle-by-cycle current limiting, auto-restart short-circuit protection, and adjustable latch-off OVP. The HV pin provides constant-current (≈1 mA) precharge of the VCC capacitor directly from rectified mains, eliminating auxiliary winding dependency during startup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Quasi-resonant flyback with primary-side regulation and integrated PFC control |
| Power Factor | >99% at full load - achieved via VR-sensed line voltage feedforward and peak current modulation |
| Dimmer Compatibility | Trailing-edge (ELV) and leading-edge (TRIAC) phase-cut dimmers - validated per design guidelines |
| VCC Startup | HV pin supplies ≈1 mA constant current to charge VCC capacitor from rectified mains - no auxiliary winding required |
| OVP Response | Adjustable latch-off mode - external resistor sets threshold; prevents LED overvoltage under open-load fault |
| Protection Features | Cycle-by-cycle current limit, output short-circuit auto-restart, input overvoltage lockout, VCC UV/OV lockout |
| Efficiency | Up to 91% - enabled by valley-switching, low quiescent current, and optimized gate drive |
Pinout & Package
ICLS8082GXUMA1 is housed in PG-DSO-8 package (8-pin, exposed pad, RoHS-compliant, creepage-optimized for 230 VAC applications).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 ZCV | Zero-Crossing Detection Input | Accepts delayed auxiliary winding signal; triggers valley-switching and enables output OVP via internal Vzc threshold comparison |
| 2 VR | Voltage Sense Input | Connects to rectified mains divider; sets instantaneous peak current reference for PFC and dimming linearity |
| 3 CS | Current Sense Input | Monitors shunt voltage for PWM off-time determination and short-winding fault detection |
| 4 GD | Gate Drive Output | Drives external MOSFET gate with optimized rise/fall times; supports up to 1 A peak sink/source |
| 5 HV | High-Voltage Startup Input | Draws ≈1 mA constant current from bulk DC to precharge VCC capacitor - eliminates startup winding |
| 6 n.c. | No Connection | Internally unconnected; must remain floating - no external tie or pull-up/down |
| 7 VCC | Controller Supply Voltage | Operates from 11.5 V to 25 V; includes UVLO (10.5 V) and OVP (27 V) lockout thresholds |
| 8 GND | Controller Ground Reference | Common return for all analog and digital blocks; requires low-inductance layout to CS/GD paths |
Key Features
| Feature | Design Value |
|---|---|
| Digital Soft Start | Gradually ramps PWM duty and frequency over ≈50 ms to limit inrush current and stress on transformer/MOSFET |
| Foldback Correction | Automatically reduces peak current reference at low line voltages to maintain stable output power across 90–265 VAC range |
| Leading-Edge Blanking (LEB) | 450 ns blanking window on CS pin - suppresses switching noise false triggering during MOSFET turn-on |
| Auto-Restart Short-Circuit Protection | Enters 1.2 s restart cycle upon sustained short; resumes normal operation after fault clears - no manual reset needed |
| Adjustable Output OVP | Latch-off threshold set by external resistor from ZCV to GND - enables precise LED string overvoltage cutoff |
Applications
| LED Retrofit Bulbs | LED Downlights |
|---|---|
|
Use Scenario: Replacement of 40–60 W incandescent A19 bulbs with E26/E27 base in residential AC mains environments. IC Role / Device Role / Timing Role: Primary-side QR controller performing PFC, phase-cut dimming interpretation, and isolated output regulation without optocoupler or secondary sensing. Use Value: Enables compact, cost-effective 12–15 mm height designs with >99% PF and smooth 10–100% dimming range across common TRIAC dimmers. |
Use Scenario: Commercial recessed 6–12 W LED downlights operating directly from 120/230 VAC with wall-mounted dimmers. IC Role / Device Role / Timing Role: Quasi-resonant flyback controller executing valley-switching synchronized to ZCV signal for minimum EMI and conduction loss. Use Value: Delivers 91% efficiency and <5% THD while meeting IEC 61000-3-2 Class C harmonic limits without additional filtering components. |
| LED Tubes (T8/T5) | Integrated LED Luminaires |
|
Use Scenario: Direct-wire 18–24 W LED tube replacements for magnetic/electronic ballast fixtures in offices and warehouses. IC Role / Device Role / Timing Role: Single-stage PFC + regulation IC eliminating separate boost stage - simplifies BOM and improves thermal reliability. Use Value: Achieves >0.99 PF and ±3% output current regulation across line and temperature, enabling UL Class P compliance without derating. |
Use Scenario: Architectural linear LED luminaires with integrated drivers requiring silent, flicker-free dimming in hospitality and retail spaces. IC Role / Device Role / Timing Role: Dimming interpreter and primary regulator - converts phase-cut waveform into precise PWM duty cycle for stable LED current. Use Value: Supports deep dimming to 0.5% with no audible noise or visible flicker due to jitter-free valley switching and digital soft-start behavior. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ICE2QS03G | Fixed-frequency QR controller without integrated HV startup; requires auxiliary winding for VCC | Lacks built-in foldback correction and dimmer compatibility tuning - needs external circuitry for wide-input stability | Prefer when legacy board reuse favors fixed-frequency operation and auxiliary winding is already present |
| ILC7101 | Secondary-side synchronous buck controller with optocoupler feedback; no PFC capability | Requires separate PFC stage; limited to non-dimmable or PWM-dimmable only - no phase-cut support | Select only for low-cost, non-dimmable 12 VDC LED modules where PF > 0.9 is not mandated |
Compared with ICE2QS03G and ILC7101, ICLS8082GXUMA1 uniquely integrates HV startup, foldback correction, and phase-cut interpretation in a single QR controller - reducing component count by ≥4 and enabling Class C-compliant, dimmable LED drivers in minimal PCB area.
Availability
ICLS8082GXUMA1 is available at Aetrix Electronics and suitable for LED retrofit bulbs, commercial downlights, and integrated luminaires requiring stable component supply, long-lifecycle availability, and regulatory compliance (IEC 61000-3-2, UL 1310, EN 62384).
Supply support for ICLS8082GXUMA1 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 ICL8001G/ICLS8082G product line was designed specifically for cost-sensitive, high-efficiency, phase-cut-dimmable LED lighting - targeting single-stage QR flyback topologies that eliminate optocouplers and auxiliary windings.
FAQ
What dimmer types does ICLS8082GXUMA1 support?
ICLS8082GXUMA1 is validated for both leading-edge (TRIAC-based) and trailing-edge (electronic low-voltage) phase-cut dimmers. Its VR pin sensing and internal foldback correction ensure stable dimming performance across 10–100% range without pop-on, drop-out, or audible noise - per Infineon's 2011 Design Guidelines test data with common Lutron and Leviton models.
Does ICLS8082GXUMA1 require an auxiliary winding for VCC supply?
No. The HV pin provides ≈1 mA constant-current precharge directly from the rectified mains bus, enabling full startup without an auxiliary winding. Once VCC reaches 11.5 V, the IC transitions to normal operation and the HV current source disables - confirmed in Section 2.3 and Figure 1 of the official Application Note.
How is output overvoltage protection implemented?
Output OVP uses the ZCV pin: an external resistor from ZCV to GND sets a threshold voltage. When reflected auxiliary voltage exceeds this threshold, the IC enters adjustable latch-off mode - halting switching until power cycle reset. This method avoids optocoupler dependency and enables precise, temperature-stable OVP calibration.
Can ICLS8082GXUMA1 be used in non-dimmable applications?
Yes. In non-dimmable configurations, the VR pin is tied to a fixed voltage divider representing nominal line voltage, and the ZCV pin remains connected for valley switching. The IC retains all protections, PFC, and QR efficiency benefits - delivering >91% efficiency and >0.99 PF without dimming circuitry, as verified in the application example on page 9 of the Design Guidelines.
ICLS8082GXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- CoolMOS™
- Package/Case:
- 12-BSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- AC DC Offline Switcher
- Topology:
- Flyback
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 10.5V
- Voltage - Supply (Max):
- 26V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- PWM
- Applications:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-12
ICLS8082GXUMA1 FAQ
1.How can I place an order for ICLS8082GXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ICLS8082GXUMA1 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 ICLS8082GXUMA1 reliable?
The price and inventory of ICLS8082GXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICLS8082GXUMA1 is usually 5 days.
3.What payment methods are accepted for ICLS8082GXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICLS8082GXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICLS8082GXUMA1?
ICLS8082GXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICLS8082GXUMA1 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 ICLS8082GXUMA1?
For technical support, including ICLS8082GXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICLS8082GXUMA1 requirements.
6.How does Aetrix verify that ICLS8082GXUMA1 is sourced from the original manufacturer or authorized distributors?
All ICLS8082GXUMA1 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 ICLS8082GXUMA1 meets industry standards.
7.What is the process for return or replacement of ICLS8082GXUMA1?
All ICLS8082GXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICLS8082GXUMA1, 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 ICLS8082GXUMA1 part is unused and in its original packaging.
Return procedure for ICLS8082GXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ICLS8082GXUMA1 Tags
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