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EC4215 Datasheet(PDF) 3 Page - E-CMOS Corporation

Part # EC4215
Description  Constant Current LED Driver with PWM Dimming
PDF  6 Pages
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Manufacturer  E-CMOS [E-CMOS Corporation]
Direct Link  http://www.ecmos.com.tw/
Logo E-CMOS - E-CMOS Corporation

EC4215 Datasheet(HTML) 3 Page - E-CMOS Corporation

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E-CMOS Corp. (www.ecmos.com.tw)
EC4215
3D08N Rev. F001
Constant Current LED Driver with
PWM Dimming
3/6
Control
Circuits
LED
GND
VFF
REXT
Protection
Circuits
DIM
VIN
FUNCTION DIAGRAM
PIN DESCRIPTIONS
PIN
Symbol
Description
1
VFF
Input voltage sensing through a voltage divider for constant output power regulation.
2
VIN
Input supply voltage.
3
DIM
Connect a logic level PWM signal for adjustable brightness of LED strings.
4
REXT
An external resistor sets different current regulation for LED strings between REXT and GND pin.
5
GND
Ground.
6
GND
Ground.
7
GND
Ground.
8
LED
The LED strings are connected from input supply voltage to this pin.
Fig. 2 Detailed Bloam



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