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AP1521 Fiches technique(PDF) 6 Page - Anachip Corp

No de pièce AP1521
Description  White LED Step-Up Converter
Download  8 Pages
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Fabricant  ANACHIP [Anachip Corp]
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Logo ANACHIP - Anachip Corp

AP1521 Fiches technique(HTML) 6 Page - Anachip Corp

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AP1521
White LED Step-Up Converter
Anachip Corp.
www.anachip.com.tw
Rev. 0.1 Apr. 27, 2004
6/8
Typical Performance Characteristics
Li-lon to Two White LEDs
V
IN
SW
SHDN
GND
FB
C
IN: TAIYO YUDEN JMK107BJ105
C
OUT: AVX 0603ZD105
D: CENTRAL CMDSH2-3
L: MURATA LQH3C220
AP1521
V
DC
Dimming
C
OUT
1uF
R1
4Ω
L
22uH
D
V
IN
3V To 5V
C
IN
1uF
90k
5k
AP1521 Efficiency(%) v.s. LED
Current (mA)
67
69
71
73
75
77
79
81
83
85
0
1020
304050
LED Current (mA)
Vin=4.2V
Vin=5V
Vin=3.6V
Li-lon to Three White LEDs
V
IN
SW
SHDN
GND
FB
C
IN: TAIYO YUDEN JMK107BJ105
C
OUT: AVX 0603YD224
D: CENTRAL CMDSH-3
L: MURATA LQH3C220
AP1521
V
DC
Dimming
C
OUT
0.22uF
R1
4Ω
L
22uH
D
V
IN
3V To 5V
C
IN
1uF
90k
5k
AP1521 Efficiency(%) v.s. LED
Current (mA)
67
69
71
73
75
77
79
81
83
85
0
1020
30
4050
60
LED Current (mA)
Vin=4.2V
Vin=5V
Vin=3.6V
Li-lon to Four White LEDs
V
IN
SW
SHDN
GND
FB
C
IN: TAIYO YUDEN JMK107BJ105
C
OUT: AVX 0603YD224
D: CENTRAL CMDSH-3
L: MURATA LQH3C220
AP1521
V
DC
Dimming
C
OUT
0.22uF
R1
4Ω
L
22uH
D
V
IN
3V To 5V
C
IN
1uF
90k
5k
AP1521 Efficiency(%) v.s. LED
Current (mA)
67
69
71
73
75
77
79
81
83
85
0
1020
3040
50
LED Current (mA)
Vin=4.2V
Vin=5V
Vin=3.6V


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