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TS19378 Datasheet(PDF) 3 Page - Taiwan Semiconductor Company, Ltd

Part # TS19378
Description  2A Buck (Step-down) WLED Driver
PDF  7 Pages
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Manufacturer  TSC [Taiwan Semiconductor Company, Ltd]
Direct Link  http://www.taiwansemi.com
Logo TSC - Taiwan Semiconductor Company, Ltd

TS19378 Datasheet(HTML) 3 Page - Taiwan Semiconductor Company, Ltd

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TS19378
2A Buck (Step-down) WLED Driver
3/7
Version: A13
Typical Application Circuit
A: Normal Application Circuit
C1
33uH
L1
R5
0.6Ω
VIN
D1
B340
C5
0.1uF
OVP
4
3
VGATE
1
VCC
8
VSS
2
COMP
7
FB
6
SW
5
AX2005/A
C6
0.1uF
C2
0.1uF
R1
C3
1uF
R4
R3
8.2K
LED-1
220uF
EN/SS
U1
ILED
R2
C7
15n
100Ω
D2
DIODE
Dimming
100Hz-50KHz
C4
470uF
LED-N
VOUT
VFB = 0.2V
ILED = VFB/R5
VOVP (OVP) = 0.85× (1+
)
R4
R1
20K
COUT ESR Range
R2
C7
30~80mΩ
470R
10nF
80~300mΩ
100R
15nF
B: AC Input Application Circuit 9Inverting)
C1
33uH
L1
R5
0.6Ω
D1
B340
C5
0.1uF
OVP
4
3
VGATE
1
VCC
8
VSS
2
COMP
7
FB
6
SW
5
AX2005/A
C6
0.1uF
C2
0.1uF
R1
C3
1uF
R4
R3
8.2K
LED-1
220uF
EN/SS
U1
R2
C7
33nF
560Ω
AC adapter
VOUT
LED-2
LED-3
LED-4
ILED
Bridge rectifier
VFB = 0.2V
ILED = VFB/R5
VOVP (OVP) = 0.85× (1+
)
R4
R1
20K
C4
100uF
ILED
R5
C1
L1
350mA
0.57Ω
70mW
100uF
33uH
750mA
0.266Ω
150mW
220uF
1000mA
0.2Ω
200mW
330uF



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