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L9779WD Datasheet(PDF) 43 Page - STMicroelectronics

No. de pieza L9779WD
Descripción Electrónicos  Multifunction IC for engine management system
PDF  170 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9779WD Datasheet(HTML) 43 Page - STMicroelectronics

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DocID027452 Rev 5
43/170
L9779WD
Functional description
169
Figure 18. VB overvoltage diagram
Table 15. Linear 5 V regulator electrical characteristics
Pin
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
VDD5
VDD5
Output voltage 5 V
IVDD5 = 5 to 400 mA
Vbat = 6-18 V
4.9
5
5.1
V
VDD5
Transient load
regulation
Square wave on VDD5,
IDD5= ±100 mA; F0 = 5 kHz;
tr = tf = 0.5 µs; within the
output current range
NO reset occurs.
Cout =1 µF
Cout =10 µF
4.8
4.85
5
5
5.2
5.15
V
Srpower-up5
Output voltage slew
rate at power-up
Ivdd5 = 50 mA; Cout =10 µF
5
15
25
V/ms
Vline_5
Line regulation
voltage
IVDD5 = 5 to 400 mA
6 V < Vb < 18 V
--
25
mV
Vload_5
Load regulation
voltage
--
25
mV
VDD5Drift
Total output VDD5
voltage drift
Cout =1 µF (parameter
validated in reliability test)
--
100
mV



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