UC2842/3/4/5-UC3842/3/4/5
Figure 1 :
Error Amp Configuration.
Error amp can source or
sink up to 0.5mA
Figure 2 :
Under Voltage Lockout.
During Under-Voltage Lockout, the output driver is
biased to sink minor amounts of current. Pin 6
should be shunted to groundwith a bleederresistor
Figure 3 :
Current Sense Circuit .
to preventactivating the power switch with extrane-
ous leakage currents.
Peak current (i
s
) is determined by the formula
1.0 V
I
S max
≈
R
S
A small RC filter may be required to suppress switch transients.
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