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MP3397EF Datasheet(PDF) 8 Page - Monolithic Power Systems

Part # MP3397EF
Description  Step-Up, 4-String Max 350mA/String White LED Driver
PDF  16 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP3397EF Datasheet(HTML) 8 Page - Monolithic Power Systems

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MP3397—4-STRING, MAX 350mA/STRING WHITE LED DRIVER
MP3397 Rev. 1.01
www.MonolithicPower.com
8
9/4/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
FUNCTIONAL BLOCK DIAGRAM
Control
Logic
+
-
Current Sense
Amplifier
+
-
PWM
Comparator
Oscillator
+
-
1.23V
OV
Comparator
+
-
+
-
LED1
+
-
DPWM
Oscillator
DPWM
Comparator
1.23V
Feedback
Control
6.3V
EA
LED OV
Comparator
Short String
Protection
Regulator
LED4
OVP
ISENSE
GND
VIN
VCC
DBRT
BOSC
ISET
COMP
OSC
EN
Enable
Control
Ref
GATE
Current Control
Figure 1—MP3397 Functional Block Diagram



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