Datasheet

TJA1085 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 1 — 23 October 2012 2 of 61
NXP Semiconductors
TJA1085
FlexRay active star coupler
 Local wake-up via pin LWU
 Wake-up source recognition
 configurable per branch
 Enhanced supply voltage monitoring on V
IO
, V
CC
, V
BUF
and V
BAT
 Auto I/O level adaptation to host controller supply voltage V
IO
 Can be used in 14 V, 24 V and 48 V powered systems
 Enhanced bus error detection - detects short-circuit conditions on the bus
 Instant transmitter shut-down interface (BGE pin)
 Selective branch shut-down (partial networking)
2.3 Robustness
 Bus pins protected against 8 kV ESD pulses according to HBM and 6 kV ESD
pulses according to IEC61000-4-2
 All pins protected against 1000 V ESD according to CDM
 All pins protected against 200 V ESD according to MM
 No reverse currents from the digital input pins to V
IO
or V
CC
when the TJA1085 is not
powered up
 Bus pins short-circuit proof to battery voltage (14 V, 24 V or 48 V) and ground
 Overtemperature detection and protection
 Bus pins protected against transients in automotive environment (according to ISO
7637 class C)
2.4 Active star functional classes
 Active star - communication controller interface
 Active star - bus guardian interface
 Active star - voltage regulator control
 Active star - logic level adaptation
 Active star - host interface
 Active star - increased voltage amplitude transmitter
3. Ordering information
Table 1. Ordering information
Type number Package
Name Description Version
TJA1085HN HVQFN44 plastic thermal enhanced very thin quad flat package; no leads; 44 terminals;
body 9  9  0.85 mm
SOT1113-1