S P 7 6 1 6
H i g h A c c u r a c y 4 - C h a n n e l L o w S i d e L E D D r i v e r f o r
C C F L R e p l a c e m e n t
TYPICAL PERFORMANCE CHARACTERISTICS
All data taken at V IN = 8V, T J = T A = 25°C, unless otherwise specified.
100
V IN
I LED 20mA/DIV
Typical Turn on Characteristics
V IN
I LED 20mA/DIV
Typical Turn Maximum Input Voltage
80
60
40
20
0
PWM = 100Hz
PWM = 1KHz
PWM = 5KHz
PWM Signal
V LED (Cathode Voltage)
I LED 20mA/DIV
0
20
40
60
80
100
PWM Duty Cycle (%)
PWM Duty Cycle Linearity
PWM Signal
V LED (Cathode Voltage)
I LED 20mA/DIV
PWM Response 1kHz 90% Duty Cycle
PWM Response 1kHz 10% Duty Cycle
PWM Signal
V LED (Cathode Voltage)
I LED 20mA/DIV
PWM Response 1kHz 50% Duty Cycle
? 2009 Exar Corporation
5/11
Rev. 2.0.4
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