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L9960 датащи(PDF) 43 Page - STMicroelectronics

номер детали L9960
подробное описание детали  Automotive Single/Dual H-Bridge, SPI programmable DC Brushed Motor Driver
PDF  95 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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L9960 датащи(HTML) 43 Page - STMicroelectronics

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DS11115 Rev 10
43/95
L9960, L9960T
Functional description
94
The current SR setting is reported by bit "ISR_echo"
Note:
(-) available in the R8 bit position in SPI answer frame 7a.
4.6.3
Voltage slew rate
The voltage slew rate on HS FETs can be set in real time by SPI.
The corresponding read/write bit is "VSR". Only the power transistors not used for
freewheeling are adjustable, the two others are controlled with a preset slew rate.
Note:
(-) available in the R6 bit position in SPI command frame 3.
Voltage Slew rate depends upon the VSR/NOSR bit configuration also on the following
bit/conditions (ILIM_REG, overcurrent or Tj (and TDSR)) as defined in the table below.
The voltage SR setting is reported by bit "VSR_echo".
Note:
(-) available in the R7 bit position in SPI answer frame 7a.
Table 48. ISR_echo
Bit status
Description
Condition
0
echo ISR SLOW config
-
1
echo ISR FAST config
Default value
Table 49. VSR
Bit status
Description
Condition
0
see table below
-
1
default value see table
Reset value
Table 50. Voltage slew rate
Range/ condition
VSR
TDSR
NOSR
Condition
SLOW
0
X
0
Slow dV/dT
FAST (Default at POR)
1
X
0
Fast dV/dT
SR disabled if ILIM_REG = 1
Or NOC = 0
X
X
X
Very fast dv/dt
Slew rate disabled if
tj > OTwam
X
1
X
Very fast dv/dt
Slew rate disabled
X
X
1
Very fast dv/dt
Table 51. VSR_echo
Bit status
Description
Condition
0
echo VSR SLOW config
-
1
echo VSR FAST config
Default value



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