FAN3121C Fairchild Semiconductor, FAN3121C Datasheet - Page 13

• Manufacturer Part Number: FAN3121C
• Description: The FAN3121 and FAN3122 MOSFET drivers are designed to drive N-channel enhancement MOSFETs in low-side switching applications by providing high peak current pulses
• Manufacturer: Fairchild Semiconductor

© 2008 Fairchild Semiconductor Corporation
FAN3121 / FAN3122 • Rev. 1.0.0
Typical Performance Characteristics
Typical characteristics are provided at 25°C and V
Figure 42. Quasi-Static Sink Current with V
Figure 44. Quasi-Static Sink Current with V
Figure 40. Rise / Fall Waveforms with 10nF Load
Notes:
12. For any inverting inputs pulled LOW, non-inverting inputs pulled HIGH, or outputs driven HIGH; static
13. The initial spike in each current waveform is a measurement artifact caused by the stray inductance of
I
the current-measurement loop.
DD
increases by the current flowing through the corresponding pull-up/down resistor, shown in Figure 7.
DD
DD
DD
=12V
=8V
=12V unless otherwise noted.
(13)
(13)
Figure 43. Quasi-Static Source Current with V
Figure 41.
13
FAN3121/22
Figure 45. Quasi-Static I
1kHz
IN
Quasi-Static Source Current with V
V
DD
ceramic
1µF
I
(2) x 4.7µF
OUT
OUT
ceramic
V
OUT
/ V
LECROY AP015
OUT
Current Probe
Test Circuit
470µF
Al. El.
www.fairchildsemi.com
DD
C
1µF
LOAD
=12V
DD
=8V
(13)
(13)