TJA1028T/5V0/10 NXP Semiconductors, TJA1028T/5V0/10 Datasheet - Page 6

• 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
7.2.3.1 The LIN transceiver in Normal mode
7.2.1 Off mode
7.2.2 Standby mode
7.2.3 Normal mode
7.2.4 Sleep mode
The TJA1028 switches to Off mode from all other modes if the battery supply voltage
drops below the power-off detection threshold (V
exceeds the overtemperature protection activation threshold (T
The voltage regulator and the LIN physical layer are disabled in Off mode, and pin RSTN
is forced LOW.
Standby mode is a low-power mode that guarantees very low current consumption.
The TJA1028 switches from Off mode to Standby mode as soon as the battery supply
voltage rises above the power-on detection threshold (V
junction temperature is below the overtemperature protection release threshold
(T
The TJA1028 switches to Standby mode from Normal mode during the mode select
window if TXD is HIGH and EN is LOW (see
A remote wake-up event will trigger a transition to Standby mode from Sleep mode. The
remote wake-up event will be signalled by a continuous LOW level on pin RXD.
In Standby mode, the voltage regulator is on, the LIN physical layer is disabled and
remote wake-up detection is active. The wake-up source is indicated by the level on RXD
(LOW indicates a remote wake-up).
If the EN pin is pulled HIGH while the TJA1028 is in Standby mode (with RSTN = 1) or
Sleep mode, the device will enter Normal mode. The LIN physical layer and the voltage
regulator are enabled in Normal mode.
The LIN transceiver is activated when the TJA1028 enters Normal mode.
In Normal mode, the transceiver can transmit and receive data via the LIN bus. The
receiver detects data streams on the LIN pin and transfers them to the microcontroller via
pin RXD. LIN recessive is represented by a HIGH level on RXD, LIN dominant by a LOW
level.
The transmit data streams of the protocol controller at the TXD input are converted by the
transmitter into bus signals with optimized slew rate and wave shaping to minimize EME.
A LOW level at the TXD input is converted to a LIN dominant level while a HIGH level is
converted to a LIN recessive level.
Sleep mode features extremely low power consumption.
The TJA1028 switches to Sleep mode from Normal mode during the mode select window
if TXD and EN are both LOW (see
The voltage regulator and the LIN physical layer are disabled in Sleep mode. Pin RSTN is
forced LOW. Remote wake-up detection is active.
vj
< T
th(rel)otp
).
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 25 July 2012
Section
LIN transceiver with integrated voltage regulator
7.2.5), provided RSTN = 1.
Section
th(det)poff
7.2.5), provided RSTN = 1.
BAT
) or the junction temperature
> V
th(act)otp
th(det)pon
).
TJA1028
© NXP B.V. 2012. All rights reserved.
), provided the
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