tja1080 NXP Semiconductors, tja1080 Datasheet - Page 42

• Manufacturer Part Number: tja1080
• Description: Flexray Transceiver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
15. Appendix
TJA1080_2
Product data sheet
15.1.1 Power-up supply sequence
15.1 Errata: known issues of the TJA1080
For further information on temperature profiles, refer to Application Note AN10365
“Surface mount reflow soldering description” .
For proper initialization of the internal state machine the V
first when powering-up the TJA1080. When V
switched on with a delay of at least 60 s with respect to V
In case the rise time of the V
shall be switched on with a delay time of at least 60 s after V
case the rise time of the V
V
The rise time of the V
undervoltage detection time t
would be detected and the TJA1080 would enter Standby mode. Similarly, the rise time of
the V
t
If the voltage on all three supply pins V
during a running application, the power sequence as mentioned above has to be applied
again.
det(uv)(VIO)
Fig 15. Temperature profiles for large and small components
CC
and V
IO
voltage should be below the minimum value of the V
MSL: Moisture Sensitivity Level
temperature
.
IO
is needed.
CC
Rev. 02 — 12 July 2007
voltage should be below the minimum value of the V
= minimum soldering temperature
BAT
BAT
maximum peak temperature
det(uv)(VCC)
minimum peak temperature
voltage t
= MSL limit, damage level
voltage from 0 V to 6.5 V is below 10 ms, V
r(VBAT)
BAT
. Otherwise, an undervoltage condition at V
, V
is longer than 10 ms, no delayed switching of
CC
BAT
and V
reaches 6.5 V, V
IO
of the TJA1080 drops under 4 V
BAT
BAT
IO
undervoltage detection time
voltage has to be applied
.
BAT
temperature
peak
has reached 6.5 V. In
CC
FlexRay transceiver
and V
© NXP B.V. 2007. All rights reserved.
TJA1080
001aac844
IO
CC
CC
may be
time
and V
CC
42 of 48
IO