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LT3474IFE-TRPBF データシートの表示(PDF) - Linear Technology
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コンポーネント説明
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LT3474IFE-TRPBF
Step-Down 1A LED Driver
Linear Technology
LT3474IFE-TRPBF Datasheet PDF : 20 Pages
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BLOCK DIAGRAM
V
IN
C
IN
V
IN
4
SHDN
INT REG
10
AND
UVLO
∑
SLOPE
COMP
R
T
9
R
T
OSC
FREQUENCY
FOLDBACK
–
+
2V
REF
11
PWM
14
V
ADJ
13
LT3474/LT3474-1
BIAS
7
RQ
C1
S
Q
1.25V
BOOST
6
DRIVER
Q1
SW
5
C1
L1
D1
100Ω
g
m
OUT
2
0.1Ω
LED
3
DLED1
C2
PWM
Q2
1.25k
GND
8
V
C
12
USE WITH
PWM DIMMING
C
C1
C
C2
R
C
3474 BD
Figure 1. Block Diagram
3474fd
7
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