,

Power Analog Microelectronics Inc

8

www.poweranalog.com

PAM2846

Integrated 6 String LED Boost Type Driver

Typical Performance Characteristic

Analog Dimming Signal Step

Total LED Current Line regulation

Efficiency VS Input Voltage

75%

80%

85%

90%

95%

100%

4

8

12

16

20

24

28

Input Voltage (V)

10x6 LED

8x6 LED

6x6 LED

T =25°C, V =ENA=12V,

AIN

Rset=10k , L=22 H, Fsw=500kHz, 10x6 LED, unless otherwise noted

Ωμ

133.5

134

134.5

135

135.5

136

136.5

137

137.5

4

8

12

16

20

24

28

Input Voltage (V)

0

5

10

15

20

25

0

5

10 15 20 25 30 35 40 45 50 55 60 65

ENA Dimming Step

07/2008 Rev 1.2

Max Output Current Vs Output Voltage

(Per Channel)

0

20

40

60

80

100

16

20

24

28

32

36

40

Output Voltage (V)

Vin=12V

Vin=6V