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L9954 数据表(PDF) 28 Page - STMicroelectronics

部件名 L9954
功能描述  Door actuator driver
PDF  37 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L9954 数据表(HTML) 28 Page - STMicroelectronics

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Functional description of the SPI
L9954 / L9954XP
28/37
Doc ID 14279 Rev 3
17
x (don’t care)
After 50ms the bit can be
cleared. If over-current
condition still exists, a wrong
load can be assumed.
OUT6 – HS
open load
The open load detection
monitors the load current
in each activated output
stage. If the load current
is below the open load
detection threshold for at
least 1 ms (tdOL) the
corresponding open load
bit is set. Due to
mechanical/electrical
inertia of typical loads a
short activation of the
outputs (e.g. 3ms) can
be used to test the open
load status without
changing the
mechanical/electrical
state of the loads.
16
x (don’t care)
0
15
x (don’t care)
OUT5 – HS
open load
14
OUT3 OC
Recovery
Enable
OUT4 – HS
open load
13
OUT2 OC
Recovery
Enable
0
12
OUT1 OC
Recovery
Enable
0
11
OUT6 PWM1
Enable
If the PWM1/2 Enable Bit is set
and the output is enabled
(Input Register 0) the output is
switched on if PWM1/2 input is
high and switched off if
PWM1/2 input is low. OUT5 is
controlled by PWM2 input. All
other outputs are controlled by
PWM1 input.
0
10
x (don’t care)
0
9
OUT5 PWM2
Enable
0
8
OUT4 PWM1
Enable
0
7
x (don’t care)
0
6
x (don’t care)
OUT3 – HS
open load
5
x (don’t care)
OUT3 – LS
open load
4
x (don’t care)
OUT2 –HS
open load
3
OUT3 PWM1
Enable
OUT2– LS
open load
2
OUT2 PWM1
Enable
OUT1 – HS
open load
1
OUT1 PWM1
Enable
OUT1 – LS
open load
0
1
No Error bit
A logical NOR-
combination of all bits 1
to 22 in both status
registers.
Table 19.
SPI - input data and status registers 1 (continued)
Bit
Input register 1 (write)
Status register 1 (read)
Name
Comment
Name
Comment



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