E910.54B37AB ELMOS Semiconductor, E910.54B37AB Datasheet - Page 19

• Manufacturer Part Number: E910.54B37AB
• Description: Interface - Specialized FlexRay Transceiver
• Manufacturer: ELMOS Semiconductor

Specifications of E910.54B37AB

• Rohs: yes
• Product Type: FlexRay Transceiver
• Operating Supply Voltage: 5 V
• Supply Current: 50 mA
• Maximum Power Dissipation: 150 mW
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-14
• Minimum Operating Temperature: - 40 C

4.2.6 Failure Detection and storage
4.2.6.1 Undervoltages and Overtemperature
The voltage monitor for VCC and VIO and the overtemperature detection circuit are parts of the power supply unit
and described in chapter 4.2.2. The undervoltage and overtemperature failure bits are digitally debounced and
stored in the failure register. The content of the register is transferred to the host via SPI.
4.2.6.2 interface failure detection
Failures at the bus lines (short circuits to the ground, to the supply, BP to BM, lost connections and faulty termina-
tion resistors) as well as at the host or communication controller interfaces are detected and sent to host via SPI.
4.2.6.3 List of conditions, bus driver actions and signaling
ELMOS Semiconductor AG
no.
10
11
1
2
3
4
5
6
7
8
9
BD is without any supply voltage
Undervoltage on all supply voltages
BD looses connection to channel
(BP and BM interrupted)
BP line shorted to GND
BP line shorted to VSUP
BM line shorted to GND
BM line shorted to VSUP
BP line shorted to BM line
Defect of the error signaling lines
INTN interrupted
Defect of the error signaling lines.
INTN shorted to GND
Defect of the error signaling lines.
SPI lines interrupted
Fault description
Data sheet
19/28
High impedance at BP
and BM
High impedance at BP
and BM
BD detects uBus at
the channel which is
too high
BD limits the output
current
BD limits the output
current
BD limits the output
current
BD limits the output
current
BD limits the output
current
behaviour of the ic
QM-No.: 25DS0004.00 2010-02-03
INTN permanently LOW
SDO permanently LOW
INTN permanently LOW
SDO permanently LOW
INTN changes to LOW
Error flag ULOAD=1 in SPI
register
INTN changes to LOW
Error flag BP2GND=1 in SPI
INTN changes to LOW
Error flag BP2VSUP=1 in
SPI register
INTN changes to LOW
Error flag BM2GND=1 in
SPI
INTN changes to LOW
Error flag BM2VSUP=1 in
SPI register
INTN changes to LOW
Error flag OLOAD=1 in SPI
register.
No detection by BD itself.
Software plausibility check
with corresponding SPI
failure bits.
No detection by BD itself.
Software plausibility
check. Comparison of the
INTN level with SPI failure
flags.
Failure flag reset.
No detection by BD itself.
Software plausibility
check.
Message
E910.54