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CL8800

Sequential Linear LED Driver

Status: In Production

Features:

  • Minimal component count (base config: CL8800 + 6 resistors + diode bridge)
  • No magnetics, no capacitors
  • Up to 7.5W output (13W w/ heat sink)
  • >110Lm/W using efficient LEDs
  • 85% typical electrical efficiency
  • >0.95 power factor
  • <20% THD line current
  • Low conducted EMI w/o filters
  • 85% LED luminous utilization
  • Phase dimmer compatible with an RC network
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The CL8800 is designed to drive a long string of inexpensive, low current LEDs directly from the AC mains. A basic driver circuit consists of the CL8800, six resistors, and a bridge rectifier. Two to four additional components are optional for various levels of transient protection. No capacitors, EMI filters, or power factor correction circuits are needed. A string of series/parallel LEDs is tapped at six locations. Six linear current regulators sink current at each tap and are sequentially turned on and off, tracking the input sine wave voltage. Voltage across each regulator is minimized when conducting, providing high efficiency. Output current at each tap is individually resistor-adjustable. Cross-regulation, as the CL8800 switches from one regulator to another, provides smooth transitions. The current waveform can be tailored to optimize for input voltage range, line/load regulation, output power/current, efficiency, power factor, THD, dimmer compatibility, and LED utilization. With the addition of an RC network, the driver is compatible with phase dimming.

Additional Features
  • Minimal component count (base config: CL8800 + 6 resistors + diode bridge)
  • No magnetics, no capacitors
  • Up to 7.5W output (13W w/ heat sink)
  • >110Lm/W using efficient LEDs
  • 85% typical electrical efficiency
  • >0.95 power factor
  • <20% THD line current
  • Low conducted EMI w/o filters
  • 85% LED luminous utilization
  • Phase dimmer compatible with an RC network
Parametrics
Name
Value
Input Voltage Min (V)
90
Input Voltage Max (V)
275
V OUT Min (VDC)
70
V OUT Max (VDC)
350
Output Current (peak mA)
115
Dimming
External
Parallelable
Yes
Package
QFN-33
Features
6-Stage

Documents

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Software Library

Development Environment

  • Demo & Evaluation Boards
  • Software Libraries
Demo & Evaluation Boards
230VAC LED Load Board
230VAC LED Load Board ( ADM00861 )

The 230VAC LED Load Board is designed to work together with CL8800 LED Driver Board (ADM00866) and with CL88030 LED Driver Board (ADM00860), and consist of 12 series connected LEDs, driven sequentially by 4 TAPS LED Linear Driver, CL8800 or CL88030 , from 230VAC mains.

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CL8800 230VAC LED Driver Dev. Board
CL8800 230VAC LED Driver Dev. Board ( ADM00866 )

The CL8800 230VAC LED Driver Evaluation Board is a complete solution consisting of an LED Driver (ADM00866) and an LED Load Board (ADM00861) powered directly from the 230VAC line and based on Microchip Technology's CL8800 Sequential Linear Driver.

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Software Libraries
Analog Simulation - CL8800

The CL8800 is designed to drive a long string of inexpensive, low current LEDs directly from the AC mains. A basic driver circuit consists of the CL8800, six resistors, and a bridge rectifier. Two to...

Learn More

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
CL8800K63-G
0.096900
0.489796
33
VQFN
6x6x1.0mm
Matte Tin
e3
CL8800K63-G-M935
0.096900
0.235500
33
VQFN
6x6x1.0mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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