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W_SERIES Scheda tecnica(PDF) 7 Page - Copal Electronics

Il numero della parte W_SERIES
Spiegazioni elettronici  WHITE LED DRIVERS
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Produttore elettronici  COPAL [Copal Electronics]
Homepage  http://www.nidec-copal-electronics.com/e
Logo COPAL - Copal Electronics

W_SERIES Scheda tecnica(HTML) 7 Page - Copal Electronics

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BASIC CIRCUITRY METHOD AND FEATURES
WHITE LED DRIVERS
Example of application in circuitry
W-6137
W-5200-5
W-5626
W-6238
Driver to Five (Max.) High-Brightness white LEDs
Driver to Six High-Brightness White LEDs (I2C control)
Driver to Ten (Max.) High-Brightness white LEDs
L: Murata LQH32CN220
VIN
VIN
SW
FB
GND
SHDN
Vfb = 300 mV
20 mA
R1
15
Ω
OFF
ON
2.2 V to
5.5 V
C1
C2
L
D
VOUT
22
μH
1
μF
0.22
μF
D: Central CMDSH2-3 (rated 30V)
W-6137
W-5626
VIN
VIN
VOUT
EN
SDA
SCL
GND
LEDA1
pair A
pair B
pair C
COUT
20 mA
LEDA2
LEDB1
LEDB2
LEDC1
LEDC2
C1–
C1+
C2–
C2+
3 V to
5.5 V
Cin
ENABLE
I2C INTERFACE
1
μF1μF
1
μF1μF
VIN
W-6238
VIN
L
D
VOUT
R1
15
20 mA
(300mV)
4.7F
C1
0. 22 F
C2
FB
SHDN
SW
GND
ON
47 H
OFF
L: Sumida CDC5D23B-470
D: Central CMDSH05-4
C2: Taiyo Yuden UMK212BJ224 (rated 50V)
5
3
1
2
IN
OUT
SGND
100
100
100
100
W-5200 5
Apply PWM Waveform for
Adjustable Brightness Control
3 V to 4.4 V
i ion
Battery
t
Drive up to 5 LEDs
100
+
1 F
1 F
46
C
C+
1 F
SHDN
ON OFF
VSHDN


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