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L9396 Folha de dados(PDF) 25 Page - STMicroelectronics

Nome de Peças L9396
Descrição Electrónicos  Automotive multiple power supply IC
PDF  109 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9396 Folha de dados(HTML) 25 Page - STMicroelectronics

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DS12539 Rev 6
25/109
L9396
Power supply
108
Note:
In particular corner conditions, the VPREREG output could be affected by transient
overvoltage (clamped to VBST) once the Wake-up input is lowered. In these conditions the
integrated high-side regulator FET is kept OFF through a passive switch OFF, that may lead
the output to bounce. For this reason, it is not recommended the VPREREG to supply
eventual external circuits, unless properly protected.
All electrical characteristics are valid for the following conditions unless otherwise noted:
-40 °C ≤ Tj ≤ +175 °C; 6 ≤ VBST ≤ 19 V.
Table 10. VPREREG buck regulator
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VPREREG_H
Output Voltage VBST > 8.2 V
6.984
7.2
7.416
V
VPREREG_L
Output Voltage VBST > 7.5 V
6.305
6.5
6.695
V
VPREREG_UV
Under voltage
threshold
-
5.05
5.21
5.32
V
tflt_VPREREG_UV
Under voltage
filter time
--
12
-
µs
VPREREG_OV
Over voltage
threshold
-
VPREREG_x
+5%
-
VPREREG_ x
+10%
V
tflt_VPREREG_OV
Over voltage
filter time
--
12
-
µs
IVPREREG_HI
Output load
current
SYS_CONFIG_1[9]=1
0.01
-
1
A
IVPREREG_LO
Output load
current
SYS_CONFIG_1[9]=0
(default)
0.01
-
0.5
A
LVPREREG
Buck inductor
-
17.6
22
26.4
µH
CVPREREG
Output
capacitor
-
14.3
22
29.7
µF
dVSR_ac
Line Transient
Response
All line, load; dt = 10 µs
VBST> VPREREG(Typ)+3V
-8%
-
8%
%
dVLR_ac
Load Transient
Response
All line, load; dt = 10 µs
VBST> VPREREG(Typ)+3V
-8%
-
8%
%
IOC_VPREREG_HI
High Over
current
detection
SYS_CONFIG_1[9]=1
1.8
-
3
A
IOC_VPREREG_LO
Low Over
current
detection
SYS_CONFIG_1[9]=0
(default)
0.9
-
1.6
A
-
High side ton
--
-
40
ns
-
High side toff
--
-
40
ns
Fvpreregsw
Operating
Frequency
--
fOSCINT/
34
(0.470)
-MHz
RDSon
High side
Rds_ON
Tj = 25 °C
-
-
0.4
Ω
Tj = 175 °C
-
-
0.44
Ω



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