LT3598
BLOCK DIAGRAM
SHDN
V IN
RT
SYNC
SW
OSCILLATOR
1.230V REF
SLOPE
S
Q
Q1
V C
A2
R
SS
A3
+
GND
GND
V OUT
PWM
PWM DIMMING
V REF
LOGIC
+
OVP g m
+
0.8V
V O_SW
FB
LED g m
CTRL
OPENLED DETECTION
OPENLED
T SET
V PTAT
A1
V OUT
LED1
LED2
LED
LED
LED3
I SET
DRIVE
CIRCUITRY
DISABLE
DETECTION LED4
LED5
LED6
3598 F01
Figure 1. Block Diagram
3598fb
8
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