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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > LED Drivers

Microchip Technology CL8800K63-G-M935

Name: CL8800K63-G-M935
Brand: Microchip Technology
SKU: CL8800K63-G-M935
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CL8800K63-G-M935

Manufacturer:: Microchip Technology

Category:: LED Drivers

Package:: 33-VFQFN Exposed Pad

Datasheet:: CL8800K63-G-M935.pdf

Description:: IC LED DRIVER OFFL 33QFN

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Product details

Overview

CL8800K63-G-M935 from Microchip Technology is a sequential linear LED driver IC designed for direct AC mains-connected LED lighting systems. It drives up to six LED string taps with individually adjustable currents (60–115 mA), supports 85–265 VAC input, delivers up to 7.5 W output (13 W with heatsink), and achieves >0.95 power factor and <20% THD - enabling fluorescent tube retrofit and incandescent bulb replacement without magnetics or bulk capacitors.

For engineers reviewing the CL8800K63-G-M935 datasheet, CL8800K63-G-M935 pinout, CL8800K63-G-M935 application, or CL8800K63-G-M935 equivalent, this device is selected for high-efficiency, low-EMI, phase-dimmable LED drivers requiring minimal BOM count, thermal-aware tap current control, and compatibility with standard bridge rectifiers and RC dimmer networks.

Technical Context

The CL8800K63-G-M935 implements six independent linear current regulators that sequentially activate across the AC sine wave, minimizing voltage drop per regulator during conduction to sustain 85% typical electrical efficiency. Each tap's current is set by an external resistor connected to its dedicated SET pin (SET1–SET6), with regulation voltages tightly specified (e.g., SET1–5: 1.80–2.20 V).

It operates without power factor correction circuitry or EMI filters by leveraging zero-crossing synchronized tap switching and inherent current waveform shaping. The BIAS pin accepts up to 440 VDC, while TAP pins tolerate up to 550 V (TAP1) or 320 V (TAP2–TAP6), supporting universal AC input operation with transient protection add-ons.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Current Range	TAP1: 60 mA; TAP2: 90 mA; TAP3–TAP6: 115 mA - enables staged current delivery matching LED string voltage profile across AC cycle.
Input Voltage Support	85–265 VAC via bridge rectifier - covers global mains (100–120 VAC and 230 VAC) without reconfiguration.
Power Factor	>0.95 - reduces reactive power draw and avoids utility penalties in commercial lighting installations.
THD (Line Current)	<20% - meets IEC 61000-3-2 Class C limits for lighting equipment without external filtering.
Electrical Efficiency	85% typical - minimizes thermal load on PCB and enables compact, heatsink-free designs up to 7.5 W.
LED Luminous Utilization	85% - maximizes photon output per watt by reducing non-radiative losses in under-driven LED segments.
Dimming Compatibility	Phase-dimming support with external RC network - ensures stable TRIAC latching/holding current (>60 mA at TAP1) for smooth 10–100% dimming range.

Pinout & Package

CL8800K63-G-M935 is housed in a 33-lead QFN package (6×6 mm body) with an exposed thermal pad on the underside, requiring soldering to ≥4.0 cm² copper area for thermal management. GND pins (1–8, 19–26) serve dual roles as circuit common and heatsink ground plane pass-throughs.

Pin/Terminal	Circuit Role	Design Meaning
GND (Pins 1–8, 19–26)	Ground reference & thermal path	Electrically connects to bridge rectifier return and PCB ground plane; provides primary heat dissipation path via exposed slug.
SET1–SET6 (Pins 9,11,13,15,17,18)	Current sense input	Resistor-to-ground sets precise tap current (e.g., 60 mA at SET1); internal 2.0 V regulation enables accurate current programming.
TAP1–TAP6 (Pins 32–27)	Linear current sink output	Drives individual LED string segments; voltage capability varies per tap (TAP1: 400 V non-conducting; TAP2–6: 300 V non-conducting).
BIAS (Pin 33)	High-voltage bias supply	Accepts rectified AC (up to 440 VDC) to power internal circuitry; must be decoupled with external capacitor if used with valley-fill circuits.

Key Features

Feature	Design Value
No magnetics or bulk capacitors	Reduces BOM cost and size; eliminates capacitor aging failure mode and magnetic EMI sources.
Sequential tap switching	Minimizes instantaneous voltage drop across active regulators, enabling >85% efficiency without switching losses.
Individual tap current adjustment	Allows optimization of LED utilization and line/load regulation by tuning each segment's current independently.
Integrated transient-tolerant architecture	Supports EN 61000-4-5/4-12-compliant 2.5 kV protection with discrete external components - no internal clamp diodes required.
Phase-dimmer ready with RC network	Provides >60 mA latching current at TAP1, satisfying minimum TRIAC requirements for reliable dimmer turn-on across 100–230 VAC.

Applications

Fluorescent Tube Retrofit	Incandescent Bulb Replacement
Use Scenario: Replacing T8/T12 fluorescent tubes in office ceiling fixtures with LED-based equivalents using existing AC wiring and ballast bypass. IC Role / Device Role / Timing Role: CL8800K63-G-M935 acts as the primary AC-input linear current controller, sequencing six LED string taps to track sinusoidal input voltage and eliminate flicker. Use Value: Achieves >110 lm/W efficacy and >0.95 PF without magnetic chokes or electrolytic capacitors - extending lifetime beyond 50,000 hours and eliminating ballast compatibility issues.	Use Scenario: Designing A19 or PAR30 LED lamps that directly replace 40–75 W incandescent bulbs in residential sockets. IC Role / Device Role / Timing Role: CL8800K63-G-M935 serves as the single-chip AC-direct LED driver, managing current distribution across segmented LED strings to maintain constant luminance over full AC cycle. Use Value: Enables compact, low-cost lamp designs with <20% THD and phase-dimming compatibility - meeting ENERGY STAR and IEC 62612 requirements without auxiliary controllers.
CFL Bulb Replacement	General LED Lighting
Use Scenario: Upgrading spiral CFL bulbs (9–23 W) to LED equivalents in table lamps and enclosed fixtures where thermal headroom is limited. IC Role / Device Role / Timing Role: CL8800K63-G-M935 functions as the thermal-aware linear driver, dynamically adjusting per-tap current to prevent thermal runaway at elevated ambient temperatures. Use Value: Delivers 7.5 W output in heatsink-free configuration and 13 W with heatsink - covering full CFL wattage range while maintaining >85% efficiency and 125°C max junction temperature.	Use Scenario: Powering industrial signage, emergency exit lights, or decorative LED strips requiring robust AC-input operation without complex SMPS design. IC Role / Device Role / Timing Role: CL8800K63-G-M935 operates as the core current-regulated AC interface, providing stable DC current to parallel-series LED arrays with built-in cross-regulation between taps. Use Value: Eliminates need for isolated flyback converters, reducing design time and certification effort while achieving UL 1310 Class 2 compliance via inherent current limiting and low leakage.

Fluorescent Tube Retrofit

Incandescent Bulb Replacement

Use Scenario: Replacing T8/T12 fluorescent tubes in office ceiling fixtures with LED-based equivalents using existing AC wiring and ballast bypass.

IC Role / Device Role / Timing Role: CL8800K63-G-M935 acts as the primary AC-input linear current controller, sequencing six LED string taps to track sinusoidal input voltage and eliminate flicker.

Use Value: Achieves >110 lm/W efficacy and >0.95 PF without magnetic chokes or electrolytic capacitors - extending lifetime beyond 50,000 hours and eliminating ballast compatibility issues.

Use Scenario: Designing A19 or PAR30 LED lamps that directly replace 40–75 W incandescent bulbs in residential sockets.

IC Role / Device Role / Timing Role: CL8800K63-G-M935 serves as the single-chip AC-direct LED driver, managing current distribution across segmented LED strings to maintain constant luminance over full AC cycle.

Use Value: Enables compact, low-cost lamp designs with <20% THD and phase-dimming compatibility - meeting ENERGY STAR and IEC 62612 requirements without auxiliary controllers.

CFL Bulb Replacement

General LED Lighting

Use Scenario: Upgrading spiral CFL bulbs (9–23 W) to LED equivalents in table lamps and enclosed fixtures where thermal headroom is limited.

IC Role / Device Role / Timing Role: CL8800K63-G-M935 functions as the thermal-aware linear driver, dynamically adjusting per-tap current to prevent thermal runaway at elevated ambient temperatures.

Use Value: Delivers 7.5 W output in heatsink-free configuration and 13 W with heatsink - covering full CFL wattage range while maintaining >85% efficiency and 125°C max junction temperature.

Use Scenario: Powering industrial signage, emergency exit lights, or decorative LED strips requiring robust AC-input operation without complex SMPS design.

IC Role / Device Role / Timing Role: CL8800K63-G-M935 operates as the core current-regulated AC interface, providing stable DC current to parallel-series LED arrays with built-in cross-regulation between taps.

Use Value: Eliminates need for isolated flyback converters, reducing design time and certification effort while achieving UL 1310 Class 2 compliance via inherent current limiting and low leakage.

Equivalent & Alternatives

The following parts are listed as comparable options for similar sequential linear LED driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AL8862SP-13	Switch-mode buck-boost controller (not linear); requires inductor, MOSFET, and compensation network; higher efficiency at >15 W but greater EMI risk.	Targets higher-power LED modules (>15 W) where thermal density permits inductor placement; lacks native phase-dimming support without additional circuitry.	Select AL8862SP-13 when >15 W output or tighter output current tolerance (<±3%) is required; CL8800K63-G-M935 remains optimal for <13 W, ultra-low-EMI, and dimmer-ready designs.
NCL30160DR2G	Single-stage flyback controller with integrated 650 V MOSFET; requires transformer, optocoupler, and feedback network; supports CV+CC regulation.	Suitable for isolated LED drivers requiring SELV output; not compatible with non-isolated, direct-AC topologies like CL8800K63-G-M935.	Choose NCL30160DR2G only when safety isolation is mandated; CL8800K63-G-M935 offers lower system cost and simpler layout for non-isolated retrofit lamps.

Compared with AL8862SP-13 and NCL30160DR2G, CL8800K63-G-M935 delivers superior EMI performance and dimmer compatibility at <13 W through its capacitor-free, magnetics-free linear architecture - trading peak efficiency for design simplicity, reliability, and regulatory ease in non-isolated lighting applications.

Availability

CL8800K63-G-M935 is available at Aetrix Electronics and suitable for fluorescent tube retrofit, incandescent bulb replacement, and general LED lighting applications requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.

Supply support for CL8800K63-G-M935 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

Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and power management ICs, with ISO/TS-16949-certified manufacturing and global technical support.

The CL8800 product line was developed specifically for cost-sensitive, high-reliability AC-direct LED lighting drivers - prioritizing minimal external components, thermal resilience, and seamless integration into legacy fixture form factors.

FAQ

What is the maximum continuous output power of CL8800K63-G-M935 without a heatsink?

The CL8800K63-G-M935 delivers up to 7.5 W of continuous output power in a heatsink-free configuration, as validated under recommended operating conditions with proper PCB thermal design (1.0 oz Cu, 4-layer, 3×4 inch board). Exceeding this limit risks thermal shutdown or reduced lifetime due to junction temperature exceeding 125°C.

Does CL8800K63-G-M935 require external capacitors for basic operation?

No, CL8800K63-G-M935 does not require external capacitors for core functionality. Its sequential linear architecture eliminates the need for bulk electrolytic or film capacitors typically used in SMPS or passive dropper designs - reducing failure points and enabling >50,000-hour lifetime in properly thermally managed layouts.

How is phase-dimming compatibility achieved with CL8800K63-G-M935?

CL8800K63-G-M935 achieves phase-dimming compatibility via an external RC network across the AC line, which generates a current spike at the TRIAC turn-on edge to satisfy latching current requirements (>60 mA at TAP1). This approach avoids active dimmer detection circuits and maintains compatibility with standard leading-edge dimmers across 100–230 VAC inputs.

What is the thermal resistance (θ_JA) of the CL8800K63-G-M935 package?

The CL8800K63-G-M935 has a thermal resistance θ_JA of 24°C/W when mounted on a 1.0 oz copper, 4-layer PCB (3×4 inches) with thermal vias under the exposed pad. This value assumes optimal thermal land pattern per Microchip's layout guidelines and is critical for calculating maximum allowable power dissipation at target ambient temperatures.

Can CL8800K63-G-M935 drive LED strings with mixed forward voltages?

Yes, CL8800K63-G-M935 supports LED strings with mixed forward voltages by tapping the string at six locations and assigning different current levels per tap (e.g., 60 mA at TAP1, 115 mA at TAP3–TAP6). This allows optimization of luminous output and thermal distribution across segments with varying V_F, improving overall LED utilization to 85%.

CL8800K63-G-M935 Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 33-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: AC DC Offline Switcher

Topology:: -

Internal Switch(s):: No

Number of Outputs:: 6

Voltage - Supply (Min):: 90V

Voltage - Supply (Max):: 275V

Voltage - Output:: 70V ~ 350V

Current - Output / Channel:: -

Frequency:: -

Dimming:: -

Applications:: Lighting

Operating Temperature:: -55°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 33-QFN (6x6)

CL8800K63-G-M935 FAQ

1.How can I place an order for CL8800K63-G-M935 through Aetrix?

Please submit a Request for Quotation (RFQ) for CL8800K63-G-M935 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 CL8800K63-G-M935 reliable?

The price and inventory of CL8800K63-G-M935 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CL8800K63-G-M935 is usually 5 days.

3.What payment methods are accepted for CL8800K63-G-M935?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CL8800K63-G-M935 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CL8800K63-G-M935?

CL8800K63-G-M935 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CL8800K63-G-M935 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 CL8800K63-G-M935?

For technical support, including CL8800K63-G-M935 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CL8800K63-G-M935 requirements.

6.How does Aetrix verify that CL8800K63-G-M935 is sourced from the original manufacturer or authorized distributors?

All CL8800K63-G-M935 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 CL8800K63-G-M935 meets industry standards.

7.What is the process for return or replacement of CL8800K63-G-M935?

All CL8800K63-G-M935 units undergo pre-shipment inspection (PSI). If there is an issue with CL8800K63-G-M935, 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 CL8800K63-G-M935 part is unused and in its original packaging.

Return procedure for CL8800K63-G-M935:

1.Submit a request within 90 days.

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

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