PAM2846 Datasheet, PDF (8/14 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 LED, unless otherwise noted
137.5
137
136.5
136
135.5
135
134.5
134
133.5
4
Total LED Current Line regulation
8
12
16
20
24
28
Input Voltage (V)
100%
Efficiency VS Input Voltage
95%
90%
85%
80%
75%
4
10x6 LED
8x6 LED
6x6 LED
8
12
16
20
24
28
Input Voltage (V)
Analog Dimming Signal Step
25
20
15
10
5
0
0 5 10 15 20 25 30 35 40 45 50 55 60 65
ENA Dimming Step
Max Output Current Vs Output Voltage
(Per Channel)
100
80
60
40
20
Vin=12V
Vin=6V
0
16
20
24
28
32
36
40
Output Voltage (V)
Power Analog Microelectronics,Inc
www.poweranalog.com
8
07/2008 Rev 1.2