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MP3388 Datasheet(PDF) 7 Page - Monolithic Power Systems

Part # MP3388
Description  50V, 8-String White LED Driver
PDF  14 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP3388 Datasheet(HTML) 7 Page - Monolithic Power Systems

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MP3388- 50V, 8-STRING WHITE LED DRIVERS
MP3388 Rev. 1.0
www.MonolithicPower.com
7
12/16/2011
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
VIN =15V, 10 LEDs in series, 8 strings parallel, 20mA/string, unless otherwise noted.
70
75
80
85
90
95
100
4
9
14
19
24
29
INPUT VOLTAGE (V)
Efficiency vs. Input Voltage
Steady State
Vsw
20V/div
Vsw
20V/div
VIN
10V/div
VLED8
500mV/div
VOUT/AC
500mV/div
VOUT
20V/div
ILED
100mA/div
Vsw
20V/div
VLED8
20V/div
VOUT
20V/div
ILED
100mA/div
ILED
100mA/div
Vsw
20V/div
VEN
5V/div
VOUT
20V/div
ILED
100mA/div
Vsw
20V/div
VPWMI
5V/div
VOUT
20V/div
ILED
100mA/div
Vsw
20V/div
VFAULT
5V/div
VOUT
20V/div
ILED
100mA/div
Vsw
20V/div
VFAULT
10V/div
VOUT
20V/div
ILED
100mA/div
400ns/div
2ms/div
2ms/div
1ms/div
200us/div
200us/div
400ms/div
Vin Startup
Ven Startup
PWM Dimming
fPWM=2kHz, DPWM=50%
Open LED Protection
open all LED strings at working
Short LED Protecton
short Vout to LEDx at working
Short LED Protection
short Vout to GND at working



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