参数资料
型号: TLE6266G
厂商: INFINEON TECHNOLOGIES AG
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO28
封装: 18 MM, PLASTIC, SOP-28
文件页数: 6/50页
文件大小: 1020K
代理商: TLE6266G
Datasheet TLE 6266 G
Version 2.21
14
July 29th, 2005
The SPI output bit 0 for CAN bus wiring failure can be read out without SPI transmission
directly via the CSN pin (CSN=LOW). A transition of the CSN pin signal from LOW to
HIGH resets the SPI diagnosis bit 0..
In case the transmission data input TxD is permanently dominant, both, the CANH and
CANL transmitting stage are disabled after a certain delay time tTxD. This is necessary
to prevent the bus from being blocked by a defective protocol unit or short to GND at the
TxD input..
Table 4
CAN bus line failure cases (according to ISO 11519-2 and ISO 11898-3)
Failure
#
failure description
according to ISO 11898-3
failure description
according to 11519-2
1
CANH line interrupted
CANL line interrupted
2
CANL line interrupted
CANH line interrupted
3
CANH shorted to Vbat
CANL shorted to Vbat
3a
CANH shorted to Vcc
CANL shorted to Vcc (no ISO failure)
4
CANL shorted to GND
CANH shorted to GND
5
CANH shorted to GND
CANL shorted to GND
6
CANL shorted to Vbat
CANH shorted to Vbat
6a
CANL shorted to Vcc
CANH shorted to Vcc (no ISO failure)
7
CANL shorted to CANH
Table 5
SPI output bits for bus failure diagnosis
OBIT
Bus Failure
13
CAN Failure 2(1) and 4(5)
12
CAN Failure 1(2) and 3a(6a)
11
CAN Failure 6(3)
10
CAN Failure 6a(3a)
9
CAN Failure 5(4) and 7
8
CAN Failure 3(6)
0
CAN Bus Failure
H= ON
L= OFF
()... values in brackets according to
ISO11898-3 see table 4
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