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L5953 Scheda tecnica(PDF) 5 Page - STMicroelectronics

Il numero della parte L5953
Spiegazioni elettronici  Multiple switching voltage regulator
PDF  31 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L5953 Scheda tecnica(HTML) 5 Page - STMicroelectronics

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L5953
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Figure 1.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 2.
PIN connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 3.
AC testing input output waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 4.
SPI clocking scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 5.
Output timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 6.
Serial input timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 7.
Linear regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 8.
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 9.
Low voltage warning block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 10.
HSD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 11.
PWM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 12.
SPI & IRQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 13.
Write enable latch sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 14.
Test mode diagnostic procedure start (after a write enable latch sequence. . . . . . . . . . . . 22
Figure 15.
Read the diagnostic registerCase1: after a test mode diagnostic procedure start . . . . . . . 22
Figure 16.
Diagnostic procedure start (after write enable latch sequence operation A) . . . . . . . . . . . 23
Figure 17.
Read the diagnostic RegisterCase2: after a diagnostic procedure start. . . . . . . . . . . . . . . 23
Figure 18.
Write the status register (after a write enable latch sequence operation A) . . . . . . . . . . . . 23
Figure 19.
Read the status register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 20.
Block and application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 21.
Block diagram and application with external Power MOS . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 22.
PowerSO36 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 29



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