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L9953 Datasheet(PDF) 29 Page - STMicroelectronics

Part # L9953
Description  Door actuator driver
PDF  38 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9953 Datasheet(HTML) 29 Page - STMicroelectronics

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L9953 / L9953XP
Functional description of the SPI
Doc ID 14278 Rev 4
29/38
17
After 50ms the bit can be
cleared.
If over-current
condition still exists, a wrong
load can be assumed.
OUT8 – 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
OUT5 OC
Recovery
Enable
0
15
OUT4 OC
Recovery
Enable
OUT7 – HS
open load
14
OUT3 OC
Recovery
Enable
OUT6 – HS
open load
13
OUT2 OC
Recovery
Enable
0
12
OUT1 OC
Recovery
Enable
0
11
OUT8 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. OUT7 is
controlled by PWM2 input. All
other outputs are controlled by
PWM1 input. For test mode
rise CSN>9.5 V.
OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 DO
0
0
00
00
No error
11
0
0
0
0
Di
00
1
1
0
0
CLK
111
1
0
0
CLK 2MHz
00
0
0
1
1
PWM1
11
0
0
1
1
PWM2
00
1
1
1
1
OL
111
11
1
OC
0
10
0 / 1
OUT5 – HS
open load
9
OUT7 PWM2
Enable
OUT5 – LS
open load
8
OUT6 PWM1
Enable
OUT4 – HS
open load
70 / 1
OUT4 – LS
open load
60 / 1
OUT3 – HS
open load
5
OUT5 PWM1
Enable
OUT3 – LS
open load
4
OUT4 PWM1
Enable
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 20.
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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