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MP3310 Datenblatt(PDF) 5 Page - Monolithic Power Systems

Teilenummer MP3310
Bauteilbeschribung  50V, 1.3A, Step-up White LED Driver with True PWM Dimming
PDF  10 Pages
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Hersteller  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP3310 Datenblatt(HTML) 5 Page - Monolithic Power Systems

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MP3310—50V, 1.3A, STEP-UP WHITE LED DRIVER WITH TRUE PWM DIMMING
MP3310 Rev.1.0
www.MonolithicPower.com
5
7/5/2011
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 12V, VEN = 5V, ILED = 80mA, 10WLEDs 4Strings, unless otherwise noted.
VIN vs. Efficiency
RFSET vs. fSW
70
75
80
85
90
95
100
4
8
12
16
20
24
VIN(V)
PWM Dimming Duty vs.
WLED Current
0
10
20
30
40
50
60
70
80
90
0 10 203040 50 607080 90100
PWM DIMMING DUTY (%)
2kHz
200Hz
Steady State
Enable Startup
Enable Shutdown
PWM Dimming
fPWM=200Hz, DPWM=50%
PWM Dimming
fPWM=2kHz, DPWM=50%
Open Load Protection
IINDUCTOR
200mA/div.
1usdiv.
20usdiv.
200usdiv.
40usdiv.
4msdiv.
2msdiv.
VSW
20V/div.
VOUT/AC
200mV/div.
VIEST
500mV/div.
ILED
50mA/div.
VSW
20V/div.
VEN
5V/div.
VCMOP
500mV/div.
ILED
50mA/div.
VSW
20V/div.
VEN
5V/div.
VOUT
10V/div.
ILED
50mA/div.
VSW
20V/div.
PWM
2V/div.
VOUT
10V/div.
ILED
50mA/div.
VSW
20V/div.
PWM
2V/div.
VOUT
10V/div.
ILED
50mA/div.
VSW
20V/div.
VOUT
10V/div.
200
300
400
500
600
700
800
900
1000
1100
1200
1300
0
20
40
60
80 100 120



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