Functional Block Diagram
OB3350
Cost Effective LED Controller
COMP
FB
CS
DIM
OSC
UVLO
Ramp
Adjust
Thermal
Shutdown
5V Reference
Soft-start
EA
Sense
Amplifer
S
PW
M
PWM
Comparator
Vth_ovp
Control
Logic
Gate
Drive
DIM
Control
OVP
Figure2. OB3350 Functional Block Diagram
VIN
GATE
PWM
GND
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Preliminary datasheet
OB_DOC_DS_335000
Free Datasheet http://www.datasheetlist.com/