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EV0021 Datasheet(PDF) 4 Page - Monolithic Power Systems

Part # EV0021
Description  High Efficiency White LED Driver
PDF  8 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

EV0021 Datasheet(HTML) 4 Page - Monolithic Power Systems

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MP1521
High Efficiency
White LED Driver
MP1521 Rev 2.7 10/06/04
www.monolithicpower.com
4
Monolithic Power Systems
Figure 2: MP1521 Functional Block Diagram
Internal
Regulator
& Enable
Circuit
UVLO &
Thermal
Shutdown
Control
Logic &
Output
Driv er
GND
500nS
One-Shot
Timer
SW
EN
IN
Open Load
Shutdown
Comparator
1.23V
160K
17V
20K
0.25V
Current Limit
Comparator
0.5 W
Power
FET
FB1
Feedback
Comparator
10K
20K
1.2V
FB2
FB3
OLS
REF
Bandgap
Reference
1.23V
BRT



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