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L5953 Scheda tecnica(PDF) 22 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) 22 Page - STMicroelectronics

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Summary of the main operations
L5953
22/31
5.7
Operation G
●
Write operation disabled
1) WRDI instruction (
Table 8.)
5.8
Operation H
●
Read the diagnostic register case 3: after an IRQ pin activation
1) RDIA instruction (
Figure 17.)
2) Diagnostic register output (
Figure 17.)
The delay between the IRQ activation and operation F must be longer than 100
μs
Figure 13.
Write enable latch sequence
Figure 14.
Test mode diagnostic procedure start (after a write enable latch sequence)
Figure 15.
Read the diagnostic registerCase1: (after a test mode diagnostic procedure
start)
00
01
02
03
04
HIGH IMPEDANCE
05
06
07
S
C
CPOL=0
CPHA=0
D
Q
D03AU1483
00
01
02
03
04
HIGH IMPEDANCE
INSTRUCTION
STATUS REGISTER
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
s15
s14
s13
s12
s11
s10
s9
s8
s7
s6
s5
s4
s3
s2
s1
s0
S
C
D
Q
D03AU1484
CPOL=0, CPHA=0
00
01
02
03
04
HIGH IMPEDANCE
INSTRUCTION
DIAGNOSTIC REGISTER OUT
05
06
07
08
09
10
11
12
13
14
15
d7
d6
d5
d4
d3
d2
d1
d0
S
C
D
Q
D03AU1485
CPOL=0, CPHA=0



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