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FSP3303 Datasheet(PDF) 3 Page - FOSLINK SEMICONDUCTOR CO.,LTD

Part # FSP3303
Description  4 & 6 CHANNEL CHARGE PUMPS FOR WHITE LED BIAS
PDF  10 Pages
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Manufacturer  FOSLINK [FOSLINK SEMICONDUCTOR CO.,LTD]
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FSP3303 Datasheet(HTML) 3 Page - FOSLINK SEMICONDUCTOR CO.,LTD

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4 & 6 CHANNEL CHARGE PUMPS FOR WHITE LED BIAS
2007-4-10
3/10
FSP3302/FSP3303
ELECTRICAL CHARACTERISTICS
(Circuit of the below Figure 1, VIN = 3.5V, TA = 25°C unless otherwise specified.)
Parameter
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
Input Supply Range
VIN
2.7
5.2
V
Supply Current
IQ
3.5
mA
Shutdown Supply Current
1
µA
Full Scale Output Current
IDMAX
VIN = 3V to 5.5V,
4 LED channels active
38
44
49
mA
Output Current Matching
Between any two channels
0.3
%
Output Current Line Regulation
0.4
%/V
Charge Pump Switching
Frequency
fQP
1000
1200
1700
kHz
Soft-Start Time
tSS
330
µs
Thermal Shutdown Temperature
Hysteresis = 20°C
160
°C
EN/PROG
Logic Low Threshold
VIL
0.5
V
Logic High Threshold
VIH
1.4
V
Programming Low Time
tLOW
0.3
75
µs
Programming Low Time to
Reinitialize DAC after Finish
tLOW1
5
75
µs
Programming Minimum High Time
tHIGHMIN
50
ns
Programming High Time
tHIGH
75
µs
Finish High Time
tFINISH
500
µs
Off Timeout
tOFF
300
500
µs
Input Current
1
µA
TYPICAL APPLICATION CIRCUIT
Figure 1



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