tja1080a NXP Semiconductors, tja1080a Datasheet - Page 2

• Manufacturer Part Number: tja1080a
• Description: Flexray Transceiver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TJA1080A_3
Preliminary data sheet
2.2 Low power management
2.3 Diagnosis (detection and signalling)
2.4 Protections
2.5 Functional classes according to FlexRay electrical physical layer
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specification (see
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Very low EME to support unshielded cable
Differential receiver with high common-mode range for ElectroMagnetic Immunity
(EMI)
Auto I/O level adaptation to host controller supply voltage V
Usable for 14 V and 42 V powered systems
Bus guardian interface included
Independent power supply ramp-up for V
Transceiver can be used for linear passive bus topologies as well as active star
topologies
Low power management including two inhibit switches
Very low current in Sleep and Standby modes
Local and remote wake-up
Supports remote wake-up via dedicated data frames
Wake-up source recognition
Automatic power-down (in Star-sleep mode) in star configuration
Overtemperature detection
Short-circuit on bus lines
V
Pin TXEN and pin BGE clamping
Undervoltage detection on pins V
Wake source indication
Bus pins protected against 8 kV HBM ESD pulses
Bus pins protected against transients in automotive environment (ISO 7637 class C
compliant)
Bus pins short-circuit proof to battery voltage (14 V and 42 V) and ground
Fail-safe mode in case of an undervoltage on pins V
Passive behavior of bus lines in the event that transceiver is not powered
Bus driver voltage regulator control
Bus driver - bus guardian control interface
Bus driver logic level adaption
Active star - communication controller interface
Active star - bus guardian interface
Active star voltage regulator control
BAT
power-on flag (first battery connection and cold start)
Rev. 03 — 15 January 2009
Ref.
1)
BAT
, V
CC
BAT
and V
, V
CC
IO
and V
BAT
, V
IO
CC
IO
or V
TJA1080A
FlexRay transceiver
IO
© NXP B.V. 2009. All rights reserved.
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