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SC4541 데이터시트(PDF) 13 Page - Semtech Corporation

부품명 SC4541
상세설명  High Frequency LED Driver with Integrated Schottky and Simple Interconnect
PDF  19 Pages
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제조업체  SEMTECH [Semtech Corporation]
홈페이지  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4541 데이터시트(HTML) 13 Page - Semtech Corporation

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SC4541
13
Schematic (Buck)
LED9
LED10
VIN2
C5
1uF * 3pcs
LED16
LED17
U1
SC4541
IN
1
GND
2
SW
3
OUT
4
FB
5
EN
6
12V
12V
C3
OPT
C2
1uF
(1) L1: Murata LQH3NPN100MM0L
(2) C2,C5: Murata GRM188R7YA105K
L1
10uH
R1
1
R5
10K
VIN
Applications Information ( continued)
Figure 2 — Typical Application Schematic, Buck Topology
Efficiency (Buck)
12Vin, 2LED, Buck topology
60
65
70
75
80
85
0
20
40
60
80
100
120
140
160
180
200
Output Current(mA)
Schematic (Buck, High Efficiency Option)
< High Efficiency Option >
LED9
LED10
VIN2
C5
1uF * 3pcs
LED16
LED17
U1
SC4541
IN
GND
SW
OUT
FB
EN
3.3V
12V
C2
1uF
L1
10uH
R1
1
R5
10K
(2) C2, C3,C5: Murata GRM188R7YA105K
VIN
(1) L1: Murata LQH3NPN100MM0L
C3
1uF
Figure 3 — Typical Application Schematic, High Efficiency of Buck Topology
< High Efficiency Option >
12Vin, 2LED, Buck topology
60
65
70
75
80
85
90
0
20
40
60
80
100
120
140
160
180
200
Output Current(mA)
Efficiency (Buck, High Efficiency Option)



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