TJA1080ATS/2/T,112 NXP Semiconductors, TJA1080ATS/2/T,112 Datasheet - Page 22

• Manufacturer Part Number: TJA1080ATS/2/T,112
• Description: IC TXRX FLEXRAY 20-SSOP
• Manufacturer: NXP Semiconductors

Specifications of TJA1080ATS/2/T,112

• Applications: Automotive
• Interface: Bus
• Voltage - Supply: 4.75 V ~ 5.25 V
• Package / Case: 20-SSOP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935288151112

NXP Semiconductors
TJA1080A
Product data sheet
6.6.1 V
6.6.2 V
6.6.3 V
6.6 Fail silent behavior
In order to be fail silent, undervoltage detection and a reset mechanism for the digital state
machine is implemented.
If an undervoltage is detected on pins V
low power mode. This ensures a passive and defined behavior of the transmitter and
receiver in case of an undervoltage detection.
In the region between the minimum operating voltage and the undervoltage detection
threshold, the principle function of the transmitter and receiver is maintained. However, in
this region parameters (e.g. thresholds and delays of the transmitter and receiver) may
deviate from the range specified for the operating range.
The digital state machine is supplied by V
available. Therefore, the digital state machine will be properly supplied as long as the
voltage on pin V
above 6.5 V.
If the voltage on all pins V
digital state machine as soon as the internal supply voltage for the digital state machine is
not sufficient for proper operation of the state machine. This ensures a passive and
defined behavior of the digital state machine in case of an overall supply voltage
breakdown.
•
•
•
•
•
BAT
CC
IO
Node configuration: If the UV
(pins INH1 and INH2 are switched off) regardless of the voltage present on pins EN
and STBN. If the undervoltage recovers the wake flag will be set and the transceiver
will enter the mode determined by the voltages on pins EN and STBN.
Star configuration: The TJA1080A in star configuration is able to transmit and receive
data as long as V
undervoltage on V
Node configuration: If the UV
mode (pin INH2 is switched off) regardless of the voltage present on pins EN and
STBN. If the undervoltage recovers or the wake flag is set mode switching via pins EN
and STBN is possible.
Star configuration: If the UV
mode.
Node configuration: If the voltage on pin V
flag is reset) pins EN, STBN, TXD and BGE are set LOW (internally) and pin TXEN is
set HIGH (internally). If the UV
(pins INH1 and INH2 are switched off). If the undervoltage recovers or the wake flag is
set, mode switching via pins EN and STBN is possible.
undervoltage
undervoltage
undervoltage
All information provided in this document is subject to legal disclaimers.
CC
or pin V
CC
Rev. 5 — 24 February 2011
BAT
and V
CC
.
IO
, V
remains above 4.75 V or the voltage on pin V
IO
IO
VCC
are within their operating ranges, regardless of the
and V
VBAT
VCC
VIO
flag is set the transceiver will enter the Star-sleep
flag is set the transceiver will enter the Standby
flag is set the transceiver will enter Sleep mode
flag is set the transceiver will enter Sleep mode
BAT
CC
CC
, V
breaks down, a reset signal will be given to the
, V
IO
IO
IO
and/or V
is lower than V
or V
BAT
BAT
, depending on which voltage is
, the transceiver will enter a
uvd(VIO)
TJA1080A
FlexRay transceiver
(even if the UV
© NXP B.V. 2011. All rights reserved.
BAT
remains
22 of 49
VIO