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L9951 датащи(PDF) 16 Page - STMicroelectronics

номер детали L9951
подробное описание детали  Rear door actuator driver
PDF  36 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9951 датащи(HTML) 16 Page - STMicroelectronics

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Electrical specifications
L9951 / L9951XP
16/36
Doc ID 14173 Rev 9
Figure 3.
SPI - transfer timing diagram
Figure 4.
SPI - input timing
Table 17.
EN, CSN timing(1)
1.
See Figure 7
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
tEN_CSN_LO
Minimum EN high before
sending first SPI frame, i.e.
CSN going low
Transfer of SPI-command
to input register
20
50
µs
tCSN_HI,min
Minimum CSN HI time
between two SPI frames
Transfer of SPI-command
to input register
24
µs
0
1
0
1
time
time
time
time
time
CSN high to low: DO enabled
actual data
DI: data will be accepted on the rising edge of CLK signal
new data
CSN
CLK
DI
DO
e.g.OUT1
DO: data will change on the falling edge of CLK signal
status information
fault bit
CSN low to high: actual data is
transfered to output power switches
old data
1
2
3
4
5
6
7
8
9
10 11
0
12
13 14 15
1
0
actual data
1
2
3
4
5
6
7
8
9
10 11
0
12
13 14 15
1
2
3
4
5
6
7
8
9
10 11
0
12
13 14 15
0.8 VCC
0.8 VCC
0.8 VCC
0.2 VCC
0.2 VCC
0.2 VCC
Valid
Valid
CSN
CLK
DI
t
set CSN
t
CLKH
t
set CLK
t
CLKL
t
hold DI
t
set DI



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