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W-6237TD-3 数据表(PDF) 6 Page - Copal Electronics

部件名 W-6237TD-3
功能描述  High Voltage CMOS Boost
Download  13 Pages
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制造商  COPAL [Copal Electronics]
网页  http://www.nidec-copal-electronics.com/e
标志 COPAL - Copal Electronics

W-6237TD-3 数据表(HTML) 6 Page - Copal Electronics

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W-6237
6
TYPICAL CHARACTERISTICS
(VIN = 3.6 V, CIN = 4.7 F, COUT = 0.22 F, L = 33 H with 8 LEDs at 20 mA, TAMB = 25 C, unless otherwise specified.)
Figure 10. LED Current vs. Input Voltage
(8 LEDs)
Figure 11. LED Current Regulation (20 mA)
)
V
(
E
G
A
T
L
O
V
T
U
P
N
I
)
V
(
E
G
A
T
L
O
V
T
U
P
N
I
5.0
4.5
4.0
3.5
3.0
2.5
0
5
10
15
20
25
30
35
4.8
4.5
4.2
3.9
3.6
3.3
3.0
1.0
0.5
0
0.5
1.0
Figure 12. 8 LED Efficiency vs. Load Current
Figure 13. 8 LED Efficiency vs. Input Voltage
)
V
(
E
G
A
T
L
O
V
T
U
P
N
I
)
A
m
(
T
N
E
R
R
U
C
D
E
L
30
25
20
15
10
5
65
70
75
80
85
90
5.0
4.5
4.0
3.5
3.0
65
70
75
80
85
90
Figure 14. 7 LED Efficiency vs. Load Current
Figure 15. 6 LED Efficiency vs. Load Current
)
A
m
(
T
N
E
R
R
U
C
D
E
L
)
A
m
(
T
N
E
R
R
U
C
D
E
L
30
25
20
15
10
5
65
70
75
80
85
90
30
25
20
15
10
5
65
70
75
80
85
90
RFB = 10
RFB = 15
RFB = 20
VIN = 4.2 V
VIN = 3.6 V
8 LEDs
VOUT ~ 27 V at 20 mA
L = 33 H
15 mA
20 mA
8 LEDs
VOUT ~ 27 V at 20 mA
L = 33 H
7 LEDs
VOUT ~ 23 V at 20 mA
L = 33 H
VIN = 4.2 V
VIN = 3.6 V
6 LEDs
VOUT ~ 20 V at 20 mA
L = 33 H
VIN = 4.2 V
VIN = 3.6 V


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