PAM2846 Datasheet, PDF (7/14 Pages) Power Analog Micoelectronics – Integrated 6 String LED Boost Type Driver

PAM2846
Integrated 6 String LED Boost Type Driver
Typical Performance Characteristic
T_A=25°C, V = _IN ENA=12V, Rset=10kΩ, L=22μH, Fsw=500kHz, 10x6 LEDs, unless otherwise noted
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
5
Input Voltage VS Efficiency
Fsw =500KHz
Fsw =1MHz
Fsw =1.6MHz
9
13
17
21
25
Input Voltage (V)
LED Current VS PWMD Duty cycle@100Hz
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
10
8
PWMD=0
Fsw=500KHz
Fsw=1MHz
6
Fsw=1.6MHz
4
2
0
6
10
14
18
22
26
Input Voltage
Power Analog Microelectronics,Inc
www.poweranalog.com
7
07/2008 Rev 1.2