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SEA01 Datenblatt(PDF) 14 Page - STMicroelectronics

Teilenummer SEA01
Bauteilbeschribung  Constant voltage and current controller with online digital trimming
PDF  24 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SEA01 Datenblatt(HTML) 14 Page - STMicroelectronics

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Online digital trimming procedure
SEA01
14/24
DocID024452 Rev 1
3.4.2
Emulate VrefI
The command “emulate VrefI” writes data in the volatile VrefI register. It is a write command
and corresponds to the code given in Table 5.
The value of VrefI is changed according to the data sent (see Table 7).
The 8th bit D8 is the parity check bit.
Byte 1
(address, write type)
Byte 2:
command
Byte 3:
write data
x
Sent by slave (device)
x
x
Sent by master
Table 7. VrefI values
Data bits
Trim step [%]
VrefI value [mV]
0
000000
Default (1)
MSB
LSB
D1
D2
D3
D4
D5
D6
D7
D8 (pck)
0
000000
0
0
30 default (1) (2)
0
000001
1
3.3
31
0
000010
1
6.6
32
0
000011
0
10
33
0
000100
1
13.3
34
0
000101
0
16.6
35
0
000110
0
20
36
0
000111
1
23.3
37
0
001000
1
26.6
38
0
001001
0
30
39
0
001010
0
33.3
40



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