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ISL97672B
V_OUT
Typical Performance Curves
V_OUT
(Continued)
6P12S, 20mA/CH
V IN = 10V/DI            V
V_EN
V_EN
10.0ms/DIV
V_LX
V_LX
I_INDUCTOR
ILED = 20mA/DIV
I _V IN = 1A/DI         V
FIGURE 14. STARTUP WAVEFORMS AT V IN = 12V FOR 6P12S AT
20mA/CHANNEL
6P12S, 20mA/CH
V IN = 10V/DIV
10.0ms/DIV
I_V IN = 1A/DIV
FIGURE 15. LINE REGULATION WITH V IN CHANGE FROM 6V TO 26V,
6P12S AT 20mA/CHANNEL
6P12S, 20mA/CH
V O = 1V/DIV
10.0ms/DIV
ILED = 20mA/DIV
ILED = 20mA/DIV
FIGURE 16. LINE REGULATION WITH V IN CHANGE FROM 26V TO 6V
FOR 6P12S AT 20mA/CHANNEL
6P12S, 20mA/CH
FIGURE 17. BOOST OUTPUT VOLTAGE WITH BRIGHTNESS CHANGE
FROM 0% TO 100% , V IN = 12V, 6P12S AT
20mA/CHANNEL
LX = 20V/DIV
100us/DIV
V O = 1V/DIV
10.0ms/DIV
ILED = 20mA/DIV
FIGURE 18. BOOST OUTPUT VOLTAGE WITH BRIGHTNESS CHANGE
FROM 100% TO 0% , V IN = 12V, 6P12S AT
20mA/CHANNEL
8
ILED =20mA/DIV
EN
FIGURE 19. ISL97672B SHUTS DOWN AND STOPS SWITCHING
~30μs AFTER EN GOES LOW
FN7995.1
November 22, 2013
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