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L6566BH Datasheet(PDF) 41 Page - STMicroelectronics

No. de pieza L6566BH
Descripción Electrónicos  Multimode controller for SMPS
PDF  51 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6566BH Datasheet(HTML) 41 Page - STMicroelectronics

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OTP
Externally settable
overtemperature
protection
VDIS>VOTP
Latched
13.5
0.33
0
0
0
0
0
0
Internal shutdown
Tj > 160
oC
Auto
restart(5)
50.33
0
0
0
0
0
0
Brownout
Mains undervoltage
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
Unchanged
1
Unchanged
Unchanged
Shutdown2 Shutdown by VCOMP low
VCOMP <
VCOMPOFF
Latched
10
0.33
0
0
0
0
0
0
Adaptive
UVLO
Shutdown by Vcc going
below Vccoff (lowering of
Vccoff threshold at light
load)
Vcc < 9.4 V
(VCOMP >
VCOMPL)
Auto
restart
5 V
0.18m
A
00
0
0
0
0
Vcc < 7.2 V
(VCOMP >
VCOMPO)
1.
Use one external diode from VFF (#15) to AC_OK (#16), cathode to AC_OK.
2.
Use one external diode from SS (#14) to VREF (#10), cathode to VREF.
3.
If Css and the Vcc capacitor are such that Vcc falls below UVLO before latch tripping (Figure 21).
4.
If Css and the Vcc capacitor are such that the latch is tripped before Vcc falls below UVLO (Figure 21).
5.
When TJ < 110
oC.
6.
Discharged to zero by Vcc going below UVLO.
Table 6.
L6566BH protection (continued)
Protection
Description
Caused by
IC
behavior
Vcc
restart
(V)
IC Iq
(mA)
VREF
(V)
SS
VCOMP
(V)
OSC
(V)
FMOD
VFF



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