參數(shù)資料
型號: L6566BTR
廠商: 意法半導(dǎo)體
英文描述: Multi-mode controller for SMPS
中文描述: 多模式開關(guān)電源控制器
文件頁數(shù): 42/51頁
文件大?。?/td> 401K
代理商: L6566BTR
Application information
L6566B
42/51
Table 7. L6566B 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
V
ZCD
>V
ZCDt
h
for 4
consecutive
switching
cycles
Auto
restart
(1)
5
2.2
5
(6)
unchanged
(6)
0
0
0
unchanged
VFF >
VFFlatch
Latched
13.5
0.33
0
0
0
0
0
0
OLP
Output
overload
protection
V
COMP
=V
COMPHi
V
SS
>
V
SSDIS
Auto
restart
(2)
5
1.46
5
(6)
V
<V
SSS
V
Ci(6)
0
0
unchanged
V
COMP
=V
COMPHi
V
SS
>
V
SSLAT
Latched
13.5
0.33
0
0
0
0
0
0
Short circuit
protection
Output short
circuit
protection
V
COMP
=V
COMPHi
V
SS
>
V
SSDIS(4)
Auto
restart
5
1.46
0
V
<V
SSS
V
Ci(5)
0
unchanged
V
COMP
=V
COMPHi
V
SS
>
V
SSLAT(6)
Latched
13.5
0.33
0
0
0
0
0
0
2
nd
OCP
Transformer
saturation or
shorted
secondary
diode
protection
V
CS
>
V
CSDIS
for 2-3
consecutive
switching
cycles
Latched
5
0.33
0
0
0
0
0
0
OTP
Externally
settable
overtempera
ture
protection
V
DIS
>V
OTP
Latched
13.5
0.33
0
0
0
0
0
0
Internal
thermal
shutdown
T
j
> 160
o
C
Auto
restart
(5)
5
0.33
0
0
0
0
0
0
Brownout
Mains
undervoltag
e protection
V
AC_OK
<
V
th
Auto
restart
5
0.33
0
0
0
0
0
unchanged
Reference
drift
V
REF
drift
protection
V
REF
> V
ov
Latched
13.5
0.33
0
0
0
0
0
0
Shutdown1
Gate driver
disable
V
FF
> V
off
Auto
restart
5
2.5
5
unchanged
unchan
ged
1
uncha
nged
unchanged
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