UCC27323, UCC27324, UCC27325
UCC37323, UCC37324, UCC37325
SLUS492H –JUNE 2001–REVISED MAY 2013
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VDD
UCC27323
ENBA
ENBB
1
2
3
4
8
7
6
5
D
SCHOTTKY
Ω
10
OUTA
INA
C2
μ
C3
μ
100 F
4.5 V
1
F
GND
INB
VDD
Signal
Generator
OUTB
V
SNS
250 ns
R
0.1
SNS
μ
CER
μ
100 F
AL EL
1
F
Ω
Figure 3.
Note that the current sink capability is slightly stronger than the current source capability at lower VDD. This
stronger capability is due to the differences in the structure of the bipolar-MOSFET power output section, where
the current source is a P-channel MOSFET and the current sink has an N-channel MOSFET.
In a large majority of applications it is advantageous that the turn-off capability of a driver is stronger than the
turn-on capability. This helps to ensure that the MOSFET is held OFF during common power supply transients
which may turn the device back ON.
8
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