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L6566ATR Datasheet(PDF) 42 Page - STMicroelectronics

Part # L6566ATR
Description  Multi-mode controller for SMPS with PFC front-end
PDF  51 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6566ATR Datasheet(HTML) 42 Page - STMicroelectronics

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Application information
L6566A
42/51
Table 6.
L6566A protections
Protection
Description
Caused by
IC
behavior
Vcc
restart
(V)
IC Iq
(mA)
VREF
(V)
SS
VCOMP
(V)
OSC
(V)
FMOD
VFF
OVP
Output
overvoltage
protection
VZCD>VZCDt
h for 4
consecutive
switching
cycles
Auto
restart(1)
52.2
5(6)
unchanged
(6)
0
0
0
unchanged
VFF >
VFFlatch
Latched
13.5
0.33
0
0
0
00
0
OLP
Output
overload
protection
VCOMP
=VCOMPHi
VSS >
VSSDIS
Auto
restart(2)
5
1.46
5(6)
VSS
<VSSLAT
(3)
VCOMPHi
(6)
0
0
unchanged
VCOMP
=VCOMPHi
VSS >
VSSLAT
Latched
13.5
0.33
0
0
0
0
0
0
Short circuit
protection
Output short
circuit
protection
VCOMP
=VCOMPHi
VSS >
VSSDIS
(4)
Auto
restart
5
1.46
0
VSS
<VSSLAT
(6)
VCOMPHi
(5)
0
unchanged
VCOMP
=VCOMPHi
VSS >
VSSLAT
(6)
Latched
13.5
0.33
0
0
0
0
0
0
2nd OCP
Transformer
saturation or
shorted
secondary
diode
protection
VCS >
VCSDIS
for 2-3
consecutive
switching
cycles
Latched
5
0.33
0
0
0
0
0
0
OTP
Externally
settable
overtempera
ture
protection
VDIS>VOTP
Latched
13.5
0.33
0
0
0
0
0
0
Internal
thermal
shutdown
Tj > 160
oC
Auto
restart(5
)
5
0.33
0
0
0
0
0
0
Brownout
Mains
undervoltag
e protection
VAC_OK <
Vth
Auto
restart
5
0.33
0
0
0
0
0
unchanged
Reference
drift
VREF drift
protection
VREF > Vov
Latched
13.5
0.33
0
0
0
0
0
0
Shutdown1
Gate driver
disable
VFF > Voff
Auto
restart
5
2.5
5
unchanged
unchang
ed
1
uncha
nged
unchanged
Shutdown2
Shutdown
by VCOMP
low
VCOMP <
VCOMPOFF
Latched
10
0.33
0
0
0
0
0
0



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