isl97635a Intersil Corporation, isl97635a Datasheet - Page 8

• Manufacturer Part Number: isl97635a
• Description: Smbus 6-channel Led Driver
• Manufacturer: Intersil Corporation

Typical Performance Curves
FIGURE 6. CHANNEL-TO-CHANNEL CURRENT MATCHING
-0.005
-0.010
-0.015
-0.020
0.020
0.015
0.010
0.005
180
160
140
120
100
80
60
40
20
0
0
0
6 CHANNELS
9 LEDs PER CHANNEL
6P9S = 54 LEDs
10
Ch 0
FIGURE 8. PWM DIMMING LINEARITY
FIGURE 10. IL AT 50% PWM DIMMING
20
6V/1mA
Ch 1
30
PWM DUTY CYCLE (%)
V
IN
40
Ch 2
6V/20mA
CHANNELS
= 18V
8
50
V
IN
12V/1mA
= 12V
Ch 3
60
12V/20mA
70
(Continued)
Ch 4
80
V
IN
90
Ch 5
= 6V
100
ISL97635A
FIGURE 7. CURRENT MATCHING vs DUTY CYCLE vs
1.0
0.9
0.8
0.7
0.6
0.5
FIGURE 11. I
0
200Hz
0.1
DIMMING FREQUENCY
FIGURE 9. LX, IIN, IL AND LO
0.2
L
ZOOM IN AT PWM DIMMING ZOOM IN
10kHz
0.3
PWM DUTY CYCLE
0.4
1kHz
0.5
0.6
0.7
December 22, 2008
100Hz
20kHz
0.8
V
IN
= 12V
0.9
FN6564.2
1.0