LTC3490 Datasheet, PDF (5/12 Pages) Linear Technology – Single Cell 350mA LED Driver

W
FU CTIO AL DIAGRA
–
2 ^VIN
+
3
SW
P BODY
CONTROL
LTC3490
CAP
6
CTRL/
SHDN
8
CELLS
1
GATE
CONTROL
AND
DRIVERS
LIMIT
SENSE
AMP
19.2Ω 0.1Ω
PWM
LOGIC
START-UP
–
DIMMING
AMP
+
OVERVOLTAGE
DETECT
OSCILLATOR
V_REF/2
LED
5
250k
40k
I_REF
LOBAT
7
BATTERY
MONITOR
SHUTDOWN
GND
4
3490 FD
3490fa
5