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PDF CL8801K63-G Data sheet ( Hoja de datos )
| Número de pieza | CL8801K63-G | |
| Descripción | Sequential Linear LED Driver | |
| Fabricantes | Supertex | |
| Logotipo |  |
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Supertex inc.
CL8801
Sequential Linear LED Driver
Features
►► Minimal component count
(base config: CL8801 + 4 resistors + diode bridge)
►► No magnetics, no capacitors
►► Up to 7.5W output (13W w/ heat sink)
►► >110Lm/W using efficient LEDs
►► 85% electrical efficiency
►► >0.95 power factor
►► <30% 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 CL8801 is designed to drive a long string of inexpensive,
low current LEDs directly from the AC mains. A basic driver
circuit consists of the CL8801, four 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 four locations.
Four 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 CL8801 switches from one regulator to
the next, 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
TAP1
BIAS
GND
SET1
TAP2
TAP3
CL8801
SET2
SET3
TAP4
SET4
Doc.# DSFP-CL8801
D031914
Supertex inc.
www.supertex.com
1 page  
Valley Fill Circuit
CL8801
reOdputicot(nivoaanlllfecliiycrckfuielli)rt
RF1
10kΩ
QF1
CF1
QF2
RF3 DN3135
RF2
150kΩ
TAP1
BIAS
TAP2
TAP3
CL8800
TAP4
GND
RS1 RS2 RS3
RS4
Doc.# DSFP-CL8801
D031914
Supertex inc.
5 www.supertex.com
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet CL8801K63-G.PDF ] | |
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