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MP4603 Folha de dados(PDF) 7 Page - Monolithic Power Systems

Nome de Peças MP4603
Descrição Electrónicos  White LED Driver for Large LCD TV Backlights
PDF  18 Pages
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Fabricante Electrônico  MPS [Monolithic Power Systems]
Página de início  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP4603 Folha de dados(HTML) 7 Page - Monolithic Power Systems

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MP4603 – WHITE LED DRIVER FOR LARGE LCD TV BACKLIGHTS
MP4603 Rev. 1.0
www.MonolithicPower.com
7
4/27/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.MP4603
TYPICAL PERFORMANCE CHARACTERISTICS
Performance waveforms are tested on the evaluation board of the Design Example section.
VIN = 12V, VINH = 125V, VLED=180V ILED = 120mA, TA = 25°C, unless otherwise noted.
PWM Dimming Curve
Analog Dimming Curve
VSW
50V/div.
VIN
10V/div.
VSS
50V/div.
IL
500mA/div.
VSW
50V/div.
VIN
10V/div.
VSS
50V/div.
ILED
100mA/div.
VSW
50V/div.
VFAULT
5V/div.
VSS
50V/div.
IL
500mA/div.
VSW
50V/div.
VFAULT
5V/div.
VSS
50V/div.
ISHORT
5A/div.
VSW
50V/div.
VEN
5V/div.
VSS
50V/div.
ILED
100mA/div.
VSW
50V/div.
VPWM
5V/div.
VSS
50V/div.
ILED
100mA/div.
Steady State
VIN Start
EN Start
PWM Dimming
fPWM=200Hz, DPWM=50%
Open LED Load @ Working
Short LED- to GND @
Working
0
20
40
60
80
100
120
140
0
20
40
60
80
100
VADIM_EVB (V)
0
20
40
60
80
100
120
140
0
0.2
0.4
0.6
0.8
1
1.2



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