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MP24830 Datasheet(PDF) 5 Page - Monolithic Power Systems

Part # MP24830
Description  4.5V . 90V, Programmable Frequency White LED Driver
PDF  15 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP24830 Datasheet(HTML) 5 Page - Monolithic Power Systems

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MP24830 — 4.5V–90V, PROGRAMABLE FREQUENCY WHITE LED DRIVER
MP24830 Rev. 1.0
www.MonolithicPower.com
5
10/30/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
VEN=5V, VIN=5V to 85V, IOUT=0.5A, L=47μH, TA=25°C, unless otherwise noted.
LED STRING VOLTAGE (V)
Buck-Boost ILED vs.
PWM Dimming
VIN=25V, 3LED, FDIM=0.2kHz
Buck-Boost ILED vs.
Analog Dimming
VIN=20V, 3LED, FDIM=0.2kHz
Buck ILED vs.
PWM Dimming
VIN=25V, 3LED, FDIM=0.2kHz
INPUT VOLTAGE (V)
DIMMING (%)
DIMMING (%)
ANALOG DIMMING VOLTAGE (V)
VIN VOLTAGE (V)
LED STRING VOLTAGE (V)
INPUT VOLTAGE (V)
VIN VOLTAGE (V)
Efficiency vs.
Input Voltage
Buck Efficiency vs.
Input Voltage
ILED=1A
Efficiency vs.
String Voltage
ILED Line Regulation vs.
VIN
Buck Efficiency vs.
String Voltage
VIN=50V, ILED=1A
Buck ILED Line
Regulation vs. VIN
2LED, ILED=1A
70
75
80
85
90
95
100
0
20
40
60
80
100
70
75
80
85
90
95
100
5
12
19
263340
-0.6
-0.4
-0.2
0.0
0.2
0.4
0.6
20 30 40 50 60 70 80 90 100
0
100
200
300
400
500
0
2040
6080
100
0
100
200
300
400
500
0
20
40
60
80
100
6LED
4LED
2LED
70
75
80
85
90
95
100
020
40
60
80
100
80
84
88
92
96
100
10
15
20
25
30
35
40
-0.6
-0.4
-0.2
0.0
0.2
0.4
0.6
10
20
30
40
50
60
70
0
200
400
600
800
1000
0.7
0.9
1.1
1.3
1.5
1.7
1.9
6LED
VIN=20V
VIN=40V
8LED
10LED
3LED
3LED
6LED
8LED
10LED



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