LT3496 LINER [Linear Technology], LT3496 Datasheet - Page 8
LT3496
Manufacturer Part Number
LT3496
Description
Triple Output LED Driver
Manufacturer
LINER [Linear Technology]
Datasheet
1.LT3496.pdf
(20 pages)
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LT3496
BLOCK DIAGRAM
8
V
IN
C
C
R3
R4
C3
R
R5
C
C4
OVP1
VC1
CTRL1
V
SHDN
V REF
IN
R6
REFERENCE
1V
2V
PWM1
REGULATOR
INTERNAL
AND UVLO
–
+
+
Figure 1. LT3496 Block Diagram Working in Boost Confi guration
A8
CAP1
R
–
+
BUFFER
+
SENSE
+
CTRL
V
R1 2k
SENSE
V1
A9
0.2Ω
–
–
Q3
LED1
R2
20k
I
LED
+
–
V
IN
Q2
A1
ISRC
200μA
EAMP
M1
TG1
SLOPE
OSCILLATOR
GENERATOR
RAMP
LED1
FADJ
VC
1V
–
+
A2
C2
–
+
COMPARATOR
SHARED COMPONENTS
MOSFET
DRIVER
A6
PWM
A7
SR LATCH
R
A3
S
Q
V
IN
PWM1
REPLICATED FOR EACH CHANNEL
ISENS2
A4
A10
C1
D1
L1
DRIVER
+
–
NPN
A5
Q1
SW1
GND
3496 BD
3496fe
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