ISL97671A
Typical Performance Curves
0.60
(Continued)
0.55
0.50
0°C
+25°C
-40°C
V OUT = 50mV/DIV
2.00μs/DIV
V LX = 20V/DIV
2.00μs/DIV
0.45
0.40
0
5
10
15
20
25
30
V IN (V)
V_EN
V_EN
V_LX
V_LX
FIGURE 9. V HEADROOM vs V IN vs TEMPERATURE AT 20mA
V_OUT
V_EN
V_LX
I_INDUCTOR
FIGURE 11. SOFT-START INDUCTOR CURRENT AT V IN = 6V FOR
6P12S AT 20mA/CHANNEL
6P12S, 20mA/CH
V IN = 10V/DI            V
10ms/DIV
FIGURE 10. V OUT RIPPLE VOLTAGE, V IN = 12V, 6P12S AT
20mA/CHANNEL
V_OUT
V_EN
V_LX
I_INDUCTOR
FIGURE 12. SOFT-START INDUCTOR CURRENT AT V IN = 12V FOR
6P12S AT 20mA/CHANNEL
6P12S, 20mA/CH
V IN = 10V/DIV
10.0ms/DIV
I_V IN = 1A/DIV
ILED = 20mA/DIV
EN
I _V IN = 1A/DI         V
ILED = 20mA/DIV
FIGURE 13. LINE REGULATION WITH V IN CHANGE FROM 6V TO 26V,
6P12S AT 20mA/CHANNEL
9
FIGURE 14. LINE REGULATION WITH V IN CHANGE FROM 26V TO 6V
FOR 6P12S AT 20mA/CHANNEL
FN7709.3
November 30, 2012
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