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CL8800

Supertex
Part Number CL8800
Manufacturer Supertex
Description Sequential Linear LED Driver
Published Sep 22, 2016
Detailed Description Supertex inc. CL8800 Sequential Linear LED Driver Features ►► Minimal component count (base config: CL8800 + 6 resist...
Datasheet PDF File CL8800 PDF File

CL8800
CL8800

Overview
Supertex inc.
CL8800 Sequential Linear LED Driver 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 Applications ►► Fluorescent tube retrofit ►► Incandescent & CFL bulb replacement ►► General LED lighting General Description 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 resistoradjustable.
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.
Typical Application Circuit Transient Protection AC Mains 100 - 120VAC additional components for 230VAC TAP1 BIAS GND SET1 TAP2 SET2 TAP3 TAP4 CL8800 SET3 SET4 TAP5 SET5 TAP6 SET6 Doc.
# DSFP-CL8800 D031914 Supertex inc.
www.
supertex.
com CL8800 Ordering Information Part Number Package Options CL8800K63-G 33-Lead (6x6) QFN CL8800K63-G M93...


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