TS19377 데이터 시트보기 (PDF) - TSC Corporation
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TS19377 Datasheet PDF : 7 Pages
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TS19377
2A Buck (Step-down) WLED Driver
Typical Application Circuit
A: 1W/3W LED*1 for DC Input
VCC
R1 100K
C2
C3
C4
22u
0.1u
1u
U1
1 FB
2 EN
3 COMP
4 VCC
VSS 8
VSS 7
SW 6
SW 5
AX2002/A
D6 1N4148 R4 4.7K
Option
R5
100K
VOUT
L1
22uH
(10uH for AX2002A)
D7
LED
D5
C1
B240A
4.7u
R2
0.75R/0.33R
1W/3W
Recommend Bill of Material:
ILED
R2
350mA
0.715Ω
87.5mW
750mA
0.333Ω
189mW
1000mA
0.250Ω
250mW
C2
100uF
220uF
330uF
R5
0.22K
0.47K
0.47K
L1
68uH
B: 1W/3W LED*1 for AC Input
No output Capacitor
AC
12V IN
AC D4
AC D3
AC D2
AC D1
U1
1 FB
VSS 8
2 EN
VSS 7
3 COMP SW 6
L1
4 VCC
SW 5
AX2002/A
R5
C3
C2
0.1u
C5
100nF
D5
B240A
VOUT
D2
LED
R2
ILED
350mA
750mA
1000mA
0.715Ω
0.333Ω
0.250Ω
R2
87.5mW
189mW
250mW
C2
100uF
220uF
330uF
R5
0.22K
0.47K
0.47K
L1
68uH
3/7
Version: A11
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