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PAM2841 Arkusz danych(PDF) 5 Page - Power Analog Micoelectronics

Numer części PAM2841
Szczegółowy opis  1.5ASW Current, 40V Precision WLED Driver
PDF  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Producent  PAM [Power Analog Micoelectronics]
Strona internetowa  http://www.poweranalog.com
Logo PAM - Power Analog Micoelectronics

PAM2841 Arkusz danych(HTML) 5 Page - Power Analog Micoelectronics

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Typical Operating Characteristics
T =25 C,V =5V, unless otherwise noted
ADD
°
.
1. Efficiency VS Input Voltage
2. Efficiency VS Load Current
PAM2841
1.5A SW Current, 40V Precision WLED Driver
I
=20mA, L=22 H
LED
µ
5
,
Power Analog Microelectronics Inc
www.poweranalog.com
08/2008 Rev 1.3
50%
55%
60%
65%
70%
75%
80%
85%
90%
234
56
Input Voltage(V)
6LED
8LED
10LED
12LED
6LED,L=22 H
µ
0.6
0.65
0.7
0.75
0.8
0.85
0.9
234
56
Input Voltage(V)
L=4.7uH
L=10uH
L=22uH
L=33uH
L=47uH
3. Efficiency VS Input Voltage
I
=20mA, 10 LED
LED
10
20
30
40
50
60
Output Current
(mA)
60
%
65
%
70
%
75
%
80
%
85
%
90
%
95
%
0
V=5V
DD
VDD=3.6V
4. LED Current V
Output Voltage
S
0
0.1
0.2
0.3
0.4
0.5
8
12
16202428
3236
Output Voltage (V)
VDD=5V
VDD=3V
L=
H
47µ



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