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Supertex

CL8800 Datasheet Preview

CL8800 Datasheet

Sequential Linear LED Driver

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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 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.
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




Supertex

CL8800 Datasheet Preview

CL8800 Datasheet

Sequential Linear LED Driver

No Preview Available !

CL8800
Ordering Information
Part Number
Package Options
CL8800K63-G
33-Lead (6x6) QFN
CL8800K63-G M935 33-Lead (6x6) QFN
-G denotes a lead (Pb)-free / RoHS compliant package
Packing
490/Tray
2000/Reel
ESD Sensitive Device
Absolute Maximum Ratings
Parameter
Value
VBIAS, VTAP1
VTAP2 – 6
VSET1 – 6
Operating junction temperature
–0.5V to +550V
–0.5V to +320V
4.0V
-55ºC to +125ºC
Storage temperature, TS
-65°C to +150°C
Absolute Maximum Ratings are those values beyond which damage to the device
may occur. Functional operation under these conditions is not implied. Continuous
operation of the device at the absolute rating level may affect device reliability. All
voltages are referenced to device ground.
Typical Thermal Resistance
Package
θja1
θjc2
33-Lead QFN
24OC/W
2.5OC/W
Notes:
1. 1.0oz Cu 4-layer board, 3x4” PCB with thermal pad and thermal via array.
2. Junction to exposed heat slug.
Pin Configuration
GND
GND
GND
GND
GND
GND
GND
GND
1
33
GND
33-Lead QFN
(top view)
Product Marking
8800
LLLLLL
YYWW
AAACCC
L = Lot Number
YY = Year Sealed
WW = Week Sealed
A = Assembler ID
C = Country of Origin
= “Green” Packaging
33-Lead QFN
GND
GND
GND
GND
GND
GND
GND
GND
Recommended Operating Conditions
Sym Parameter
Min Typ Max Units Conditions
TAP1
- - 60
IOUT Output current
TAP2
TAP3
TAP4
- - 90
- - 115
mA ---
- - 115
TAP5
TAP6
TAP1
- - 115
- - 115
- - 400
Non-conducting
VOUT Output voltage
TAP2-6
TAP1-6
-
-
VBIAS Applied BIAS voltage
-
Note:
(1) Voltage capability is determined by power dissipation (V × I).
- 300 V Non-conducting
- (1)
Conducting
- 440 V ---
Doc.# DSFP-CL8800
D031914
Supertex inc.
2 www.supertex.com


Part Number CL8800
Description Sequential Linear LED Driver
Maker Supertex
PDF Download

CL8800 Datasheet PDF






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