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SM8121A Datasheet, PDF (15/19 Pages) Nippon Precision Circuits Inc – White LED Driver IC | |||
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4 LEDs
SM8121A
5LEDs
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
VIN
CIN
4.7µF
VSS
SM8121
LED
ILED
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
85
80
75
70
65
60
55
50
2.5 3.0 3.5 4.0 4.5 5.0 5.5
ILED=15mA
ILED=5mA
ILED=2mA
VIN [V]
25
20
R=25â¦
15
R=33â¦
10
R=50â¦
5
R=100â¦
R=250â¦
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
VIN [V]
25
20
R=25â¦
15
R=33â¦
10
R=50â¦
5
R=100â¦
R=250â¦
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
VIN [V]
NIPPON PRECISION CIRCUITS INC.â15
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