TJA1028T/5V0/10 NXP Semiconductors, TJA1028T/5V0/10 Datasheet - Page 5

• Manufacturer Part Number: TJA1028T/5V0/10
• Description: LIN Transceivers LIN TRANSCVR INTGR VOLTAGE REGULATOR
• Manufacturer: NXP Semiconductors

Specifications of TJA1028T/5V0/10

• Operating Supply Voltage: 5 V
• Supply Current: 850 uA
• Package / Case: SO-8
• Low Level Output Voltage: 0.5 V
• Mounting Style: SMD/SMT
• Propagation Delay Time Ns: 6 us
• Factory Pack Quantity: 100

NXP Semiconductors
TJA1028
Product data sheet
7.1 LIN 2.x/SAE J2602 compliant
7.2 Operating modes
The TJA1028T/xxx/20 and TJA1028TK/xxx/20 versions are optimized for a transmission
speed of 20 kBd, the maximum specified in the LIN standard. The TJA1028T/xxx/10 and
TJA1028TK/xxx/10 versions are optimized for a transmission speed of 10.4 kBd, as
specified in SAE J2602. All versions achieve optimum ElectroMagnetic Compatibility
(EMC) performance by wave shaping the LIN output.
The TJA1028 is fully LIN 2.0, LIN 2.1, LIN 2.2 and SAE J2602 compliant. Since the LIN
physical layer is independent of higher OSI model layers (e.g. the LIN protocol), nodes
containing a LIN 2.2-compliant physical layer can be combined, without restriction, with
LIN physical layer nodes that comply with earlier revisions (i.e. LIN 1.0, LIN 1.1, LIN 1.2,
LIN 1.3, LIN 2.0 and LIN 2.1).
The TJA1028 supports four operating modes: Normal, Standby, Sleep and Off. The
operating modes, and the transitions between modes, are illustrated in
Fig 3.
Voltage regulator - on
Voltage regulator - off
RXD = floating
RSTN = LOW
(1) In Normal mode, the LIN transmitter is enabled - but if EN and/or RSTN go LOW, the LIN
(2) Until V
(3) If a wake-up event and a go-to-sleep event occur simultaneously, the device will switch directly to
LIN = off
V
BAT
OFF
T
transmitter will be disabled. Remote wake-up signalling will be activated.
Standby mode without initiating a reset.
State diagram
vj
< V
> T
th(det)poff
th(act)otp
CC
All information provided in this document is subject to legal disclaimers.
AII states
drops below 2 V.
V
OR
BAT
T
vj
> V
< T
Rev. 4 — 25 July 2012
th(det)pon AND
th(rel)otp
wake source)
LIN transceiver with integrated voltage regulator
(RXD signals
STANDBY
LIN = off
wake-up
remote
wake-up
event
EN = 1
TXD = 1 AND
EN = 1 AND
RSTN = 1
RSTN = 1
(3)
0 AND
EN = 1
RXD = V
RSTN = LOW
NORMAL
TJA1028
© NXP B.V. 2012. All rights reserved.
Figure
LIN = on
LIN = off
SLEEP
EN = 1
TXD = 0 AND
015aaa086
RSTN = 1
CC
(1)
(2)
3.
0 AND
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(3)