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SO16N Datasheet(PDF) 40 Page - STMicroelectronics

Part # SO16N
Description  Multimode controller for SMPS
PDF  51 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SO16N Datasheet(HTML) 40 Page - STMicroelectronics

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Table 5.
L6566BH light load management features
Feature
Description
Caused by
IC
behavior
VCC_restart
(V)
Consump.
(Iqdis,mA)
VREF
(V)
SS
VCOMP
(V)
OSC
(V)
FMOD
Burst
mode
Controlled ON-OFF
operation for low power
consumption at light load
VCOMP <
VCOMPBM - Hys
Pulse skipping
operation
N.A.
1.34 mA
5
Unchanged
VCOMPBM-HYS to
VCOMPBM
0/1
0
Table 6.
L6566BH protection
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>VZCDth 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
0
0
0
OLP
Output overload
protection
VCOMP =VCOMPHi
VSS > VSSDIS
Auto
restart(2)
51.46
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
51.46
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



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