TJA1028TK/3V3/20,1 NXP Semiconductors, TJA1028TK/3V3/20,1 Datasheet - Page 7

• Manufacturer Part Number: TJA1028TK/3V3/20,1
• Description: LIN Transceivers LIN XCVR INTEGRATED VOLT REG
• Manufacturer: NXP Semiconductors

Specifications of TJA1028TK/3V3/20,1

• Rohs: yes
• Factory Pack Quantity: 6000

NXP Semiconductors
TJA1028
Product data sheet
7.2.5 Transition from Normal to Sleep or Standby mode
7.3.1 Battery (pin V
7.3.2 Voltage regulator (pin V
7.3 Power supplies
When EN is driven LOW in Normal mode, the TJA1028 disables the transmit path. The
mode select window opens t
after EN goes LOW (see
The TXD pin is sampled in the mode select window. A transition to Standby mode is
triggered if TXD is HIGH, or to Sleep mode if TXD is LOW.
To avoid complicated timing in the application, EN and TXD can be pulled LOW at the
same time without having any effect on the LIN bus. In order to ensure that the remote
wake-up time (t
pulled LOW at least t
The user must ensure the appropriate level is present on pin TXD while the mode select
window is open.
The TJA1028 contains a single supply pin, V
protect the device against negative voltages. The operating range is from 4.5 V to 28 V.
The TJA1028 can handle voltages up to 40 V (max). If the voltage on pin V
V
voltage regulator and disabling the LIN transmitter. The TJA1028 exits Off mode as soon
as the voltage rises above V
The TJA1028 contains a voltage regulator supplied via pin V
70 mA. It is designed to supply the microcontroller and its periphery via pin V
Fig 4.
th(det)poff
operating
mode
TXD
EN
, the TJA1028 switches to Off mode, shutting down the internal logic and the
TXD is sampled during the mode select window. The TJA1028 switches to Standby (TXD HIGH) or
Sleep (TXD LOW) mode after sampling.
Transition from Normal to Sleep/Standby mode
Normal
wake(dom)LIN
All information provided in this document is subject to legal disclaimers.
BAT
)
d(EN-TXD)
Normal with TXD
path blocked
Rev. 4 — 25 July 2012
t
msel(min)
Figure
) is not reset on a transition to Sleep mode, TXD should be
CC
msel(min)
th(det)pon
after EN goes LOW. This is guaranteed by design.
)
4).
, provided the junction temperature is below T
after EN goes LOW, and remains open until t
LIN transceiver with integrated voltage regulator
mode select window
t
msel(max)
BAT
. An external diode is needed in series to
TXD level in mode select window
Sleep or Standby depending on
BAT
, which delivers up to
TJA1028
© NXP B.V. 2012. All rights reserved.
BAT
CC
015aaa087
falls below
.
msel(max)
th(rel)otp
7 of 24
.