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Typical Performance Characteristics
Typical characteristics are provided at 25°C and V DD =12 V unless otherwise noted.
Figure 40. Rise / Fall Waveforms with 10 nF Load
Figure 42. Quasi-Static Sink Current with V DD =12 V (15)
Figure 41. Quasi-Static Source Current with V DD =12V
Figure 43. Quasi-Static Source Current with
V DD =8 V (15)
V DD
(2) x 4.7μF
470μF
ceramic
Al. El.
(15)
FAN3121/22
Current Probe
LECROY AP015
IN
1kHz
1μF
ceramic
I OUT
V OUT
C LOAD
1μF
Figure 44. Quasi-Static Sink Current with V DD =8 V (15)
Figure 45. Quasi-Static I OUT / V OUT Test Circuit
Notes:
14. For any inverting inputs pulled LOW, non-inverting inputs pulled HIGH, or outputs driven HIGH; static I DD
increases by the current flowing through the corresponding pull-up/down resistor, shown in Figure 7.
15. The initial spike in each current waveform is a measurement artifact caused by the stray inductance of the
current-measurement loop.
? 2008 Fairchild Semiconductor Corporation
FAN3121 / FAN3122 ? Rev. 1.0.3
13
www.fairchildsemi.com
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