PAM2845 Datasheet, PDF (7/14 Pages) Power Analog Micoelectronics – 40V High Power Boost Convertor with 6 Channel Constant Current Source

PAM2845
40V High Power Boost Convertor
with 6 Channel Constant Current Source
Typical Performance Characteristic
T_A=25°C, V = _IN ENA=12V, L=22μH, Rset=10kΩ, unless otherwise noted.
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
5
Input Voltage VS Efficiency
9
13
17
21
Input voltage(V)
LED Current VS PWMD Duty cycle
25
20
15
10
5
0
20%
40%
60%
Duty cycle
80%
100%
Shutdown current VS Input Voltage
6
5
4
3
2
1
0
0
10
20
30
Input voltage(V)
Quiescent Current VS Input Voltage
9
8
Fsw=1.6MHz
7
6
5
Fsw=1MHz
4
3
Fsw=500KHz
2
1
PWMD=0
0
6
10
14
18
22
26
Input Voltage (V)
Vout Line Regulation
41
40.5
40
39.5
39
38.5
38
4.5
8
12
16
20
24
28
Input Voltage (V)
Total LED Current Line regulation
133
132.5
132
131.5
131
130.5
130
129.5
129
4.5
8
12
16
20
24
28
Input Voltage (V)
Power Analog Microelectronics,Inc
www.poweranalog.com
7
08/2008 Rev 1.0