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MP3398A Fiches technique(PDF) 11 Page - Monolithic Power Systems

No de pièce MP3398A
Description  Step up, 4 strings, Max. 350mA/string Analog and PWM dimming, White LED Controller
PDF  20 Pages
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Fabricant  MPS [Monolithic Power Systems]
Site Internet  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP3398A Fiches technique(HTML) 11 Page - Monolithic Power Systems

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STEP UP, 4 STRINGS, MAX. 350MA/STRING ANALOG AND PWM DIMMING, WHITE LED CONTROLLER
MP3398A Rev. 1.04
www.MonolithicPower.com
11
5/26/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
BLOCK DIAGRAM
Control
Logic
+
-
Current Sense
Amplifier
+
-
PWM
Comparator
Oscillator
+
-
1.23V
OV
Comparator
+
-
+
-
LED1
1.225V
Max
Min
Feedback
Control
6.3V
EA
Short String
Protection
Regulator
LED4
OVP
ISENSE
GND
VIN
VCC
PWM
ADIM
ISET
COMP
OSC
EN
Enable
Control
Ref
GATE
Current Control
100ns
Blanking
ILIMIT
UP_CLAMP
PWM
STOP
200 ns
Blank Time
Figure 1
—Functional Block Diagram



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