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ISL97635 Datasheet(PDF) 8 Page - Intersil Corporation

Part # ISL97635
Description  SMBus 8-Channel LED Driver
PDF  28 Pages
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL97635 Datasheet(HTML) 8 Page - Intersil Corporation

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8
FN6434.2
December 22, 2008
FIGURE 6. CHANNEL-TO-CHANNEL CURRENT MATCHING
FIGURE 7. CURRENT MATCHING vs DUTY CYCLE vs
DIMMING FREQUENCY
FIGURE 8. PWM DIMMING LINEARITY
FIGURE 9. LX, VIIN, IL AND IO AT PWM DIMMING
FIGURE 10. IL AT 50% PWM DIMMING
FIGURE 11. IL ZOOM IN AT PWM DIMMING ZOOM IN
Typical Performance Curves (Continued)
-2.0
-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
CH 0
CH 1
CH 2
CH 3
CH 4
CH 5
CH 6
CH 7
CHANNELS
6V/1mA
6V/20mA
12V/1mA
12V/20mA
0.5
0.6
0.7
0.8
0.9
1.0
0
1020
3040
5060
7080
90
100
PWM DUTY CYCLE (%)
VIN = 12V
10kHz
1kHz
100kHz
200kHz
20kHz
0
20
40
60
80
100
120
140
160
180
0
1020
3040
50
6070
8090
100
PWM DUTY CYCLE (%)
8 CHANNELS
9 LEDS PER CHANNEL
VIN = 18V
VIN = 6V
VIN = 12V
ISL97635



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