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MP3302 датащи(PDF) 5 Page - Monolithic Power Systems

номер детали MP3302
подробное описание детали  40V, 1.3A, Single-cell Step-up White LED Driver with Single Wire Dimming Control
PDF  12 Pages
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производитель  MPS [Monolithic Power Systems]
домашняя страница  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP3302 датащи(HTML) 5 Page - Monolithic Power Systems

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MP3302 –40V, 1.3A, SINGLE-CELL STEP-UP WHITE LED DRIVER WITH SINGLE WIRE DIMMING CONTROL
MP3302 Rev. 0.98
www.MonolithicPower.com
5
5/5/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 5V, 3WLEDs 9Strings, unless otherwise noted.
VSW
10V/div.
VEN
2V/div.
VOUT
5V/div.
VEN
2V/div.
VEN
5V/div.
VOUT
5V/div.
ILED
100mA/div.
Enable Startup
VSW
10V/div.
ILED
100mA/div.
VEN
5V/div.
VOUT
5V/div.
VSW
10V/div.
ILED
100mA/div.
Enable Shutdown
PWM Dimming
VSW
20V/div.
VOUT
20V/div.
Start Up into Openload
VSW
10V/div.
VFB
50mV/div.
VOUT
AC Coupled
100mV/div.
Iinductor
500mA/div.
400ns/div.
Steady State Operation
VIN = 5V, 3 WLEDs,9 Strings
VIN = 5V, 3 WLEDs,9 Strings
VIN = 5V, 3 WLEDs,9 Strings
VIN = 5V
VIN = 5V, 3 WLEDs,9 Strings
f=1kHz
VIN=5V, 3 WLEDs, 9 Strings
VIN=5V, 3 WLEDs, 9 Strings
0
0.2
0.4
0.8
1
PWM DIMMING DUTY
Output Current vs
PWM Dimming Duty
200
180
160
140
120
100
80
60
40
20
0.6
0
200
180
160
140
120
100
80
60
40
20
0
0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6
EN PIN VOLTAGE (V)
Output Current vs
Analog Dimming Voltage
3
60
65
70
75
80
85
90
95
4
56
INPUT VOLTAGE(V)
3 WLEDs,9 Strings
6 WLEDs
8 WLEDs
10WLEDs
Efficiency vs
Input Voltage



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