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TLE8201R データシート(PDF) 26 Page - Infineon Technologies AG

部品番号 TLE8201R
部品情報  Door Module Power IC
PDF  45 Pages
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メーカー  INFINEON [Infineon Technologies AG]
ホームページ  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

TLE8201R データシート(HTML) 26 Page - Infineon Technologies AG

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TLE 8201R
Data Sheet Rev. 2.0
26
2006-06-07
4.4.1.3
Open Load
Open-load detection in ON-state is implemented in the low-side switches of the bridge
outputs: When the current through the low side transistor is lower than the reference
current
I
OCD in ON-state for longer than the open-load detection delay time tdOC, the
according open-load diagnosis bit is set. The output transistor, however, remains ON.
The open load error bit is latched and can be reset by the SPI status register reset or by
a power-on reset.
As an example, if a motor is connected between outputs OUT 1 and OUT 2 with a broken
wire as shown in Figure 10, the resulting diagnostic information is shown in Table 5
Figure 10
Open load example
Table 5
Open load diagnosis example
Control
Diagnostic information
motor
connected
motor
disconnected
Remark on Open
Load Detection
LS1
ON
HS1
ON
LS2
ON
HS2
ON
motor
rotation
LS1
OpL
LS2
OpL
LS1
OpL
LS2
OpL
0
000motor off
0
0
0
0
not detectable
1
001clock-wise 0
0
1
0
detected
0
110counter
clock-wise
0
0
0
1
detected
0
101brake high 0
0
0
0
not detectable
1
010brake low
1
1
1
1
not detectable.
Door
Lock
OUT 1
OUT 2
HS1
LS1
HS2
LS2
Open Load



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