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MP3378 Datasheet(PDF) 12 Page - Monolithic Power Systems

Part # MP3378
Description  24 V, 4-Channel WLED Controller Plus High-Efficiency Buck Converter
PDF  25 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP3378 Datasheet(HTML) 12 Page - Monolithic Power Systems

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MP3378
– 4-CHANNEL WLED CONTROLLER PLUS BUCK CONVERTER
MP3378 Rev. 1.01
www.MonolithicPower.com
12
5/26/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
FUNCTIONAL BLOCK DIAGRAM
Control
Logic
+
-
Current-Sense
Amplifier
+
-
PWM
Comparator
Oscillator
+
-
1.23 V
OV
Comparator
+
-
+
-
LED1-4
1
1. 225 V
Max
Min
Feedback
Control
6.3 V
EA
Short-String
Protection
Regulator
OVP
ISENSE
GND1
VIN1
VCC1
PWM
ADIM
ISET
COMP
OSC
EN
Enable
Control
Ref
GATE
Current Control
100 ns
Blanking
ILIMIT
UP_ CLAMP
PWM
STOP
200 ns
Blank Time
VIN2
VCC2
AAM
SYNC
FB
BST
SW
GND2
RSEN
LDO
On-Time
Control Logic
Current-Limit
Comparator
VCC
Regulator
Rference
Error Amplifier
HS
Driver
LS
Driver
VCC
1 pF
50 pF 400 k
AGND
Figure 1
—Functional block diagram



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