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MP3389 Datasheet(PDF) 7 Page - Monolithic Power Systems

Part # MP3389
Description  12?밪tring, Step-up White LED Driver
Download  16 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP3389 Datasheet(HTML) 7 Page - Monolithic Power Systems

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MP3389—12-STRING WHITE LED DRIVER WITH STEP-UP CONTROLLER
MP3389 Rev. 1.04
www.MonolithicPower.com
7
3/27/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
VIN =12V, 14 LEDs in series, 12 strings parallel, 20mA/string, unless otherwise noted.
VSW
20V/div.
VSW
20V/div.
VIN
5V/div.
VLED1
1V/div.
VOUT (AC)
1V/div.
VOUT
20V/div.
ILED1
20mA/div.
ILED
200mA/div.
VSW
20V/div.
VSW
20V/div.
VEN
5V/div.
VOUT
20V/div.
VBOSC
500mV/div.
VOUT
20V/div.
ILED
200mA/div.
ILED
200mA/div.
VSW
20V/div.
VOUT
20V/div.
VPWM1
5V/div.
ILED
200mA/div.
Steady State
Vin Startup
Ven Startup
VSW
20V/div.
VSW
20V/div.
VOUT
20V/div.
VOUT
20V/div.
VFAULT
5V/div.
VLED1
20V/div.
ILED
200mA/div.
VSW
20V/div.
VOUT
50V/div.
VFAULT
5V/div.
ILED
200mA/div.
ILED
100mA/div.
Open LED Protection
open all LED strings at working
Short LED Protection
short VOUT to LEDx at working
Short LED Protection
short VOUT to GND at working
Efficiency vs. Input Voltage
0.7
0.75
0.8
0.85
0.9
0.95
612
18
24
30
INPUT VOLTAGE (V)


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