Datasheet

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L6565
APPLICATION IDEAS
Here follows a series of ideas/suggestions aimed at either improving performance or solving common applica-
tion issues of L6565-based power supplies.
Figure 21. Enhanced turn-off for big MOSFET's drive
Figure 22. Latched shutdown on: a) feedback disconnection; b) overload or short circuit
Figure 23. Secondary Feedback loop configurations
7
6
8
GD
GND
DRIVER
Vcc
Q
L6565
Rs
BC327
a)
8
Vcc
L6565
2
COMP
b)
8
Vcc
L6565
2
COMP
BC337
BC327
1N4148
BC337
BC327
1N4148
Vout
TL431
L6565
COMP
INV
Vcc
8
12
R
A
R
B
Vout
TL431
L6565
COMPINV
1
2
ICOMP
Vout
TL431
L6565
4
CS
1
INV
Vcc
8
Rs
Roff
a) b) c)