L6566B View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L6566B' PDF : 51 Pages View PDF
Application information
L6566B
Figure 7. Timing diagram showing short-circuit behavior (SS pin clamped at 5 V)
Vcc
(pin 5)
VccON
VccOFF
Vccrestart
Short circuit occurs here
GD
(pin 4)
Trep
t
< 0.03Trep
Vcc_OK
t
Icharge
t
0.85 mA
t
Figure 8. Zero current detection block, triggering block, oscillator block and
related logic
L6566B
COMP
9
VFF
15
line
FFWD
ZCD 11
RZ1
RZ2
5.7V
BLANKING
TIME
blanking
START
PWM
7 CS
-
+
100 mV
50 mV
Strobe
+
-
5V
MONO
STABLE
TURN-ON
LOGIC
R
Q
S
4 GD
DRIVER
OSCILLATOR
Reset
S/H
4:1
Counter
FAULT
AUXILIARY
OSCILLATOR
6
13
FMOD
OSC
CMOD
RMOD
RT
+Vin
Q
Rs
20/51
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