SM8121A 데이터 시트보기 (PDF) - Nippon Precision Circuits
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SM8121A Datasheet PDF : 19 Pages
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SM8121A
TYPICAL APPLICATION CIRCUITS
2 LEDs
3 LEDs
SBD
COUT
1.0µF
L
10µH
SW
VDD
ILED
LED
VIN
CIN
4.7µF
VSS
SM8121
FB
CE
R
CIN: 2012Y5VIC 475Z (TDK)
COUT: 2012Y5VIH 105Z (TDK)
L: LQH32CN100K11 (Murata)
SBD: RB551V-30 (ROHM)
LED: NSCW455 (NICHIA)
SBD
COUT
1.0µF
L
10µH
SW
VDD
ILED
LED
VIN
CIN
4.7µF
VSS
SM8121
FB
CE
R
CIN: 2012Y5VIC 475Z (TDK)
COUT: 2012Y5VIH 105Z (TDK)
L: LQH32CN100K11 (Murata)
SBD: RB551V-30 (ROHM)
LED: NSCW455 (NICHIA)
100
95
90
85
80
75
70
65
60
55
50
0
VIN=4.5V
VIN=3.6V
VIN=2.3V
5
10 15 20
ILED [mA]
100
95
90
85
80
75
70
65
60
55
50
0
VIN=4.5V
VIN=3.6V
VIN=2.3V
5
10 15 20
ILED [mA]
100
95
90
ILED=15mA
85
ILED=5mA
80
75
ILED=2mA
70
65
60
55
50
2.5 3.0 3.5 4.0 4.5 5.0 5.5
VIN [V]
100
95
90
ILED=15mA
85
ILED=5mA
80
ILED=2mA
75
70
65
60
55
50
2.5 3.0 3.5 4.0 4.5 5.0 5.5
VIN [V]
25
20
R=25Ω
15
R=33Ω
10
R=50Ω
5
R=100Ω
R=250Ω
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
VIN [V]
25
20
R= 5Ω
15
R=33Ω
10
R=50Ω
5
R=100Ω
R=250Ω
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
VIN [V]
NIPPON PRECISION CIRCUITS INC.—14
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