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LT3003 数据表(PDF) 11 Page - Linear Technology

部件名 LT3003
功能描述  3-Channel LED Ballaster with PWM
PDF  16 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LT3003 数据表(HTML) 11 Page - Linear Technology

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background image
LT3003
11
3003fa
330mA Boost LT3003 with the LT3477
LT3003
VIN
VIN
C3
1
µF
25V
3003 TA03a
ILED
110mA PER STRING
6 to 8
LEDs PER STRING
4
5
9
11
10
VMAX
PWM
8
7
6
6
13
14
16
17
D1
11
32
1
VOUT
4V
LED1
LED2
LED3
VEE
GND
SHDN
OT1
OT2
FBN
ISP2
3
7
8
5
12
2
4
21
15
PWM
R3
6.81k
ISN2
FBP
VREF
RT
VC
D2
1N4148W
SHDN
LT3477
ISP1 ISN1
SW SW
GND
GND
SS
NC
NC
NC
1
10
9
VIN
IADJ1
IADJ2
18
19
20
R4
0.3
Ω
1%
R5
1.15M
1%
L1
4.7
µH
VIN
8V TO 16V
R6
45.3k
1%
C3
0.033
µF
C4
4.7
µF
50V
VOUT
C2
22nF
C1, C3: TAIYO YUDEN TMK212BJ105MG-BR
C4: MURATA GRM32ER71H475KA88L
D1: DIODES INC. DFLS140
L1: SUMIDA CDRH5D16-4R7
Q1
2N7002
C1
1
µF
25V
PWM DIMMING RATIO
1
10
100
10000
3003 TA03b
1
0.1
10
100
1000
1000
ILED = 110mA PER STRING
NUMBER OF LEDS = 8
× 3 = 24
VIN (V)
8
50
55
65
70
75
100
85
10
12
13
3003 TA03b
60
90
95
80
911
14
15
16
ILED = 110mA PER STRING
NUMBER OF LEDS = 8
× 3 = 24
PWM Dimming
Efficiency
TYPICAL APPLICATIONS



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