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ISL97672B Datasheet(PDF) 7 Page - Renesas Technology Corp

Part # ISL97672B
Description  6-Channel LED Driver with Ultra Low Dimming Capability
Download  17 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL97672B Datasheet(HTML) 7 Page - Renesas Technology Corp

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ISL97672B
FN7995 Rev.3.00
Page 7 of 17
Sep 7, 2017
FIGURE 8. EFFICIENCY vs VIN vs TEMPERATURE AT 20mA (100%
LED DUTY CYCLE)
FIGURE 9. CHANNEL-TO-CHANNEL CURRENT MATCHING
FIGURE 10. CURRENT LINEARITY vs LOW LEVEL PWM DIMMING
DUTY CYCLE vs VIN
FIGURE 11. VHEADROOM vs VIN AT 20mA
FIGURE 12. VOUT RIPPLE VOLTAGE, VIN = 12V, 6P12S AT
20mA/CHANNEL
FIGURE 13. START UP WAVEFORMS AT VIN = 6V FOR 6P12S AT
20mA/CHANNEL
Typical Performance Curves (Continued)
0
10
20
30
40
50
60
70
80
90
100
0
5
10
15
20
25
30
+25°C
-40°C
0°C
+85°C
VIN
0.40
0.10
0.20
0.30
-0.10
-0.20
0.00
01234
5
CHANNEL
6
-0.30
-0.40
7
21 VIN
12 VIN
4.5 VIN
0
0.2
0.4
0.6
0.8
1.0
1.2
01
4
DC
23
5
6
4.5 VIN
12 VIN
0.40
0.45
0.50
0.55
0.60
0
5
10
15
20
25
30
-40°C
0°C
+25°C
VIN (V)
2.00µs/DIV
VO = 50mV/DIV
V_OUT
V_EN
V_LX
I_INDUCTOR
V_OUT
V_EN
V_LX
I_INDUCTOR


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