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MP4689 Datasheet(PDF) 6 Page - Monolithic Power Systems

Part # MP4689
Description  100V Input, 1A High Power LED Driver
PDF  10 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP4689 Datasheet(HTML) 6 Page - Monolithic Power Systems

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MP4689 – 100V INPUT, 1A HIGH POWER LED DRIVER
MP4689 Rev. 1.0
www.MonolithicPower.com
6
4/29/2011
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
L=47µH, 1 LED Load, TA=25
oC, unless otherwise noted.
Enable Shut Down
VIN = 40V
Enable Start Up
VIN = 40V
Efficiency vs. Input
Voltage
VIN VOLTAGE(V)
Efficiency vs. String
Voltage
VIN VOLTAGE (V)
ILED Load Regulation
ILED vs. PWM Dimming Duty
199.70
199.80
199.90
200.00
200.10
200.20
200.30
200.40
200.50
0 10 20 30 40 50 60 70 80
VIN ( V )
EN
5V/div.
FB
100mV/div.
SW
20V/div.
ILED
500mA/div.
EN
5V/div.
FB
100mV/div.
SW
20V/div.
ILED
500mA/div.
PWM Dimming
VIN = 60V, 7LEDs
PWM Dimming
VIN = 60V, 7LEDs
DIM
5V/div.
FB
100mV/div.
SW
50V/div.
ILED
200mA/div.
DIM
5V/div.
FB
100mV/div.
SW
50V/div.
ILED
200mA/div.
-0.9
-0.6
-0.3
0.0
0.3
0.6
0.9
30
40
50 60
70 80
90 100
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0
20
40
60
80
100
10 LED
3 LED
10 LED
FPWM=0.2kHz
70
75
80
85
90
95
100
0
2040
6080
100
20 LED
10 LED
3 LED
70
76
82
88
94
100
10 20
30
40
50 60
70 80
LED STRING VOLTAGE (V)
VIN=40V
VIN=50V
VIN=70V
VIN=80V



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