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MP4012 Arkusz danych(PDF) 6 Page - Monolithic Power Systems

Numer części MP4012
Szczegółowy opis  High-Brightness, High-Current Accuracy WLED Controller
PDF  17 Pages
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Producent  MPS [Monolithic Power Systems]
Strona internetowa  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP4012 Arkusz danych(HTML) 6 Page - Monolithic Power Systems

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MP4012 ─ HIGH-VOLTAGE, HIGH-CURRENT ACCURACY WLED CONTROLLER
MP4012 Rev. 1.12
www.MonolithicPower.com
6
10/12/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
Performance waveforms are tested on the evaluation board of Typical Application Circuit
(Figure 5).
VIN = 64V, 12VIN=12V, ILED = 120mA, VLED=200V, 66WLEDs in series, TA = 25°C, Boost
Application, unless otherwise noted.
PWM DUTY
PWM Dimming Curve
0
20
40
60
80
100
120
140
0
0.2
0.4
0.6
0.8
1
VDS
100V/div.
VCOMP
5V/div.
VOUT
100V/div.
IL
500mA/div.
VDS
100V/div.
VCOMP
5V/div.
VOUT
100V/div.
ILED
100mA/div.
Steady State
Soft Start
PWM Dimming
VDS
100V/div.
VPWM
5V/div.
VOUT
100V/div.
ILED
100mA/div.
OVP Recovery
Short Load Recovery
VDS
100V/div.
VCOMP
5V/div.
VOUT
100V/div.
IL
500mA/div.
VDS
100V/div.
VCOMP
5V/div.
VOUT
100V/div.
ILED
100mA/div.
VIN (V)
Efficiency vs. VIN
90.00
91.00
92.00
93.00
94.00
95.00
96.00
97.00
50
60
70
80
90



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