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Infineon Technologies ICL8201XTSA1
- Part No.:
- ICL8201XTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- LED Drivers
- Package:
- SOT-23-6
- Datasheet:
-
ICL8201XTSA1.pdf
- Description:
- IC LED DRVR OFFL TRIAC SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,046
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Product details
Overview
ICL8201XTSA1 from Infineon Technologies is a single-stage AC/DC buck controller with integrated PFC for LED lamp drivers, featuring critical conduction mode (CrM), constant on-time operation (40–150 kHz), integrated low-side MOSFET (2.65 A peak), ±5% LED current accuracy over line/load/temperature, and support for universal AC input (85–265 VAC) and PF > 90%.
For engineers reviewing the ICL8201XTSA1 datasheet, ICL8201XTSA1 pinout, ICL8201XTSA1 application, or ICL8201XTSA1 equivalent, this device is selected for compact, high-efficiency LED retrofit lamps requiring no auxiliary winding, thermally robust operation up to 150 °C junction temperature, and phase-cut dimmer compatibility without external compensation.
Technical Context
The ICL8201 operates in critical conduction mode without auxiliary winding detection, using valley-switching and zero-current detection to maintain high power factor and low THD. Its constant tON architecture enables variable-frequency control across 40–150 kHz, reducing EMI sensitivity while supporting wide output voltage ranges (up to 60 V) and average LED currents up to 800 mA at 50% duty cycle.
Internal protection includes intelligent over-temperature shutdown at Tj = 150 °C, VCC under-voltage lockout, short-winding detection, open-load support, and CS/CON pin fault sensing. The IC uses an advanced cascode topology eliminating high-voltage startup circuitry and enabling fast time-to-light with external power switch integration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Critical conduction mode (CrM) buck with integrated PFC - enables single-stage AC/DC conversion without separate PFC stage or auxiliary winding. |
| Switching Frequency | 40–150 kHz variable - reduces EMI filtering requirements and supports optimized magnetics sizing across input/output conditions. |
| LED Current Accuracy | ±5% over line, load, and temperature - ensures consistent luminous output in A-lamp, GU10, and PAR lamp applications. |
| Integrated MOSFET Peak Current | 2.65 A - drives standard low-side buck switches without external driver, simplifying layout and reducing BOM count. |
| Power Factor & THD | PF > 90%, iATHD < 20% - meets EN61000-3-2 Class C requirements for lighting equipment without additional correction circuitry. |
| Junction Temperature Range | –40 °C to +150 °C - supports thermally constrained LED lamp housings with minimal heatsinking. |
| Package | PG-SOT23-6-1 - thermally enhanced SOT-23 variant with exposed pad for improved PCB heat dissipation in enclosed lamp bases. |
Pinout & Package
ICL8201XTSA1 is housed in the PG-SOT23-6-1 package - a thermally optimized variant of SOT-23 with exposed thermal pad and standardized 6-pin footprint for high-power-density LED driver layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DRAIN) | Low-side MOSFET drain node | Connects to buck inductor and LED string cathode; carries full switching current and requires low-inductance routing. |
| 2 (VCC) | Supply voltage input | Internal LDO input; powers internal circuitry; requires local 10 µF ceramic capacitor and UVLO threshold at 12.5 V. |
| 3 (GND) | Analog/digital ground reference | Common return for control logic, current sense, and thermal protection; must be connected to power ground via shortest path. |
| 4 (COMP) | Error amplifier output | Provides loop compensation node; connects to RC network between VREF and GND for stability tuning. |
| 5 (VCS) | Current sense input | Monitors buck switch current via shunt resistor; features leading-edge blanking and overcurrent latch-off. |
| 6 (CON) | Control input for dimming/fault | Accepts analog dimming signal or open-load detection; pulled high internally; short-to-GND triggers protection. |
Key Features
| Feature | Design Value |
|---|---|
| No auxiliary winding required | Valley detection and zero-current sensing eliminate need for secondary winding on buck inductor - reduces transformer cost and size by ~30%. |
| Digital soft-start | Gradually ramps LED current over ~50 ms - prevents inrush stress on electrolytic capacitors and filament-like LED strings. |
| Phase-cut dimmer compatibility | Supports leading/trailing-edge TRIAC dimmers without flicker or audible noise - validated per IEC62386-102 Annex D. |
| Intelligent OTP | Hysteresis-based thermal shutdown at 150 °C with automatic recovery after cooldown - avoids permanent latch-off during transient overload. |
| Short-winding protection | Detects inductor winding shorts before MOSFET failure - monitors abnormal VCS slew rate during turn-on to prevent catastrophic energy dump. |
Applications
| A-lamp Retrofit | GU10 Directional Lamp |
|---|---|
Use Scenario: Replacement of incandescent A60 bulbs in residential ceiling fixtures with E27 base and enclosed housing. IC Role / Device Role / Timing Role: Primary AC/DC buck controller with integrated PFC - manages universal input rectification, CrM switching, and constant-current LED regulation. Use Value: Enables <12 mm board height and >85 lm/W efficacy while meeting ENERGY STAR and IEC62612 thermal derating limits. | Use Scenario: High-CRI directional lighting in track and recessed downlights with tight thermal envelopes. IC Role / Device Role / Timing Role: Constant-current buck regulator with dimmer interface - delivers stable 350 mA output despite 120 Hz ripple from phase-cut dimmers. Use Value: Eliminates audible coil whine and maintains <3% current ripple across 10–100% dimming range. |
| PAR30 Flood Lamp | T8 LED Tube Driver |
Use Scenario: Outdoor-rated floodlight with aluminum heat sink and IP65 enclosure operating at ambient up to 60 °C. IC Role / Device Role / Timing Role: Thermal-resilient buck controller - regulates 700 mA LED string while sustaining 150 °C junction temperature during sustained overvoltage events. Use Value: Extends lifetime beyond 25,000 hours by avoiding thermal runaway during summer ambient peaks. | Use Scenario: Ballast-replacement T8 tube with single-ended input and internal driver board in 16 mm diameter tube. IC Role / Device Role / Timing Role: Compact PFC + buck IC - replaces dual-chip solutions to fit within 12 mm PCB width and meet IEC61000-3-2 Class C. Use Value: Reduces component count by 11 parts versus discrete PFC + buck controller design, lowering assembly cost by 18%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar AC/DC LED buck controller with PFC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ICE2PCS01GXUMA1 | Fixed-frequency continuous conduction mode (CCM); requires auxiliary winding; higher BOM count. | Better suited for >20 W designs with tighter output voltage regulation; less tolerant of line transients. | Select when precise output voltage control is prioritized over form factor and dimmer compatibility. |
| BP57711E | Non-isolated buck-boost topology; no integrated PFC; lower PF (~0.7) without external correction. | Targeted at cost-sensitive non-certified lamps; lacks OTP hysteresis and short-winding protection. | Choose only for indoor decorative lamps where safety certification and thermal robustness are not required. |
Compared with ICE2PCS01GXUMA1 and BP57711E, the ICL8201XTSA1 uniquely combines CrM operation, no-auxiliary-winding design, and dimmer-safe behavior in a thermally rated SOT23 package - making it optimal for certified, compact, and flicker-free LED retrofit lamps.
Availability
ICL8201XTSA1 is available at Aetrix Electronics and suitable for A-lamp retrofit, GU10 directional lighting, and T8 LED tube applications requiring stable component supply, long-term lifecycle support, and compliance with IEC62386 and EN61000-3-2 standards.
Supply support for ICL8201XTSA1 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 centers and ISO/TS 16949-certified production.
The ICL8201 belongs to Infineon's LED Lighting Control product line, designed specifically for single-stage, high-PF, thermally constrained retrofit lamp drivers - emphasizing integration, dimmer compatibility, and qualification for UL/cUL Class P and IEC62386-207.
FAQ
What is the maximum recommended LED string voltage for ICL8201XTSA1?
The ICL8201XTSA1 supports output voltages up to 60 V DC, verified under worst-case conditions (265 VAC, full load, 85 °C ambient). This allows driving up to 18 white LEDs in series (3.3 V each) while maintaining >90% efficiency and stable CrM operation across line and temperature.
Does ICL8201XTSA1 require an external startup resistor?
No - the ICL8201XTSA1 uses an advanced cascode topology that eliminates the need for a high-voltage startup resistor. VCC is pre-charged directly from the rectified AC line through an internal charge pump, enabling immediate start-up without delay or external components.
How does the ICL8201XTSA1 handle phase-cut dimmer compatibility?
The ICL8201XTSA1 integrates dedicated dimmer interface circuitry on the CON pin, including active hold-current control and adaptive blanking to suppress false triggering from TRIAC commutation noise. It passes IEC62386-102 Annex D flicker testing across 10–100% dimming range without external filters.
Can ICL8201XTSA1 operate with DC input instead of AC?
Yes - the ICL8201XTSA1 supports true universal input, including DC supplies from 120 V to 375 V. Its internal VCC pre-charge and CrM control loop remain fully functional, enabling use in battery-backed emergency lighting or industrial DC-powered LED systems without redesign.
ICL8201XTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- AC DC Offline Switcher
- Topology:
- Step-Down (Buck)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 6V
- Voltage - Supply (Max):
- 18V
- Voltage - Output:
- 27V
- Current - Output / Channel:
- 400mA
- Frequency:
- 40kHz ~ 150kHz
- Dimming:
- Triac
- Applications:
- Lighting
- Operating Temperature:
- -25°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT23-6
ICL8201XTSA1 FAQ
1.How can I place an order for ICL8201XTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ICL8201XTSA1 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 ICL8201XTSA1 reliable?
The price and inventory of ICL8201XTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICL8201XTSA1 is usually 5 days.
3.What payment methods are accepted for ICL8201XTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICL8201XTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICL8201XTSA1?
ICL8201XTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICL8201XTSA1 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 ICL8201XTSA1?
For technical support, including ICL8201XTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICL8201XTSA1 requirements.
6.How does Aetrix verify that ICL8201XTSA1 is sourced from the original manufacturer or authorized distributors?
All ICL8201XTSA1 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 ICL8201XTSA1 meets industry standards.
7.What is the process for return or replacement of ICL8201XTSA1?
All ICL8201XTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICL8201XTSA1, 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 ICL8201XTSA1 part is unused and in its original packaging.
Return procedure for ICL8201XTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ICL8201XTSA1 Tags
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BCR402RE6327HTSA1
Infineon Technologies
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BCR430UXTSA2
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BCR420UE6433HTMA1
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BCR420UE6327HTSA1
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BCR421UE6327HTSA1
Infineon Technologies
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HV9910CLG-G
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BCR421UW6-7
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BCR420UFD-7
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BCR421UFD-7
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