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ISL97686 Datasheet(PDF) 8 Page - Intersil Corporation

Part # ISL97686
Description  4-Channel LED Driver with Independent Channel Control for Dynamic Dimming
Download  23 Pages
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL97686 Datasheet(HTML) 8 Page - Intersil Corporation

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ISL97686
8
FN7953.0
April 23, 2012
Typical Performance Curves
FIGURE 4. EFFICIENCY vs VIN (ICH: 100mA, fDIM: 200Hz, VOUT: 45V
FOR 4P14S AND 55V FOR 4P18S)
FIGURE 5. EFFICIENCY vs ICH (VOUT: 55V FOR 4P18S, fDIM: 200Hz)
FIGURE 6. EFFICIENCY vs PWM DIMMING (VIN: 24V, VOUT: 55V FOR
4P18S, ICH: 100mA)
FIGURE 7. ACCURACY vs WPM DIMMING (VIN: 24V, VOUT: 55V FOR
4P18S, ICH: 100mA)
FIGURE 8. PWM DIMMING LINEARITY (VIN: 24V, VOUT: 55V FOR
4P18S)
FIGURE 9. PWM DIMMING LINEARITY (VIN: 24V, VOUT: 55V FOR
4P18S)
70
75
80
85
90
95
100
5
1015
202530
35
INPUT VOLTAGE (V)
4P18S
4P14S
70
75
80
85
90
95
100
30
50
70
90
110
130
150
170
CHANNEL CURRENT (mA)
V_IN:24V
V_IN:19V
40
50
60
70
80
90
100
0
20
40
60
80
100
DIMMING DUTY CYCLE (%)
fDIM: 1kHz
fDIM: 200Hz
-1.0
-0.5
0.0
0.5
1.0
0
20
406080
100
DIMMING DUTY CYCLE (%)
CH2
CH1
CH3
CH4
0
10
20
30
40
50
60
70
80
90
100
110
020
40
60
80
100
DIMMING DUTY CYCLE (%)
1kHz
200Hz
0
1
2
3
4
5
6
7
8
9
10
024
68
10
DIMMING DUTY CYCLE (%)
1kHz
200Hz


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