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L6566B Datenblatt(PDF) 20 Page - STMicroelectronics

Teilenummer L6566B
Bauteilbeschribung  Multi-mode controller for SMPS
PDF  51 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6566B Datenblatt(HTML) 20 Page - STMicroelectronics

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Application information
L6566B
20/51
Figure 7.
Timing diagram showing short-circuit behavior (SS pin clamped at 5V)
Figure 8.
Zero current detection block, triggering block, oscillator block and related
logic
Vcc
(pin 5)
GD
(pin 4)
Vcc_OK
VccON
VccOFF
Vccrestart
Icharge
0.85 mA
Short circuit occurs here
t
t
t
t
Trep
< 0.03Trep
100 mV
50 mV
DRIVER
+
-
5.7V
ZCD
PWM
GD
R
S
Q
BLANKING
TIME
COMP
+Vin
Q
L6566B
5V
-
+
MONO
STABLE
RZ1
blanking
START
RZ2
CS
VFF
TURN-ON
LOGIC
4:1
Counter
Strobe
FAULT
S/H
Reset
line
FFWD
OSCILLATOR
915
7
4
11
Rs
OSC
RT
13
AUXILIARY
OSCILLATOR
FMOD
6
RMOD
CMOD



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