TJA1028 Datasheet PDF - NXP Semiconductors

www.Datasheet-PDF.com

TJA1028
NXP Semiconductors

Part Number TJA1028
Description LIN transceiver
Page 24 Pages


TJA1028 datasheet pdf
Download PDF
TJA1028 pdf
View PDF for Mobile


No Preview Available !

TJA1028
LIN transceiver with integrated voltage regulator
Rev. 2 — 25 February 2011
Product data sheet
1. General description
The TJA1028 is a LIN 2.0/2.1/SAE J2602 transceiver with an integrated low-drop voltage
regulator. The voltage regulator can deliver up to 70 mA and is available in 3.3 V and
5.0 V variants. TJA1028 facilitates the development of compact nodes in LIN bus
systems. To support robust designs, the TJA1028 offers strong ElectroStatic Discharge
(ESD) performance and can withstand high voltages on the LIN bus. In order to minimize
current consumption, the TJA1028 supports a Sleep mode in which the LIN transceiver
and the voltage regulator are powered down while still having wake-up capability via the
LIN bus.
The TJA1028 comes in an SO8 package, and also in a 3 mm × 3 mm HVSON8 package
that reduces the required board space by over 70 %. This feature can prove extremely
valuable when board space is limited.
2. Features and benefits
www.DataSheet4U.com
„ LIN 2.0/2.1 compliant
„ SAE J2602 compliant
„ Downward compatible with LIN 1.3
„ Internal LIN slave termination resistor
„ Voltage regulator offering 5 V or 3.3 V, 70 mA capability
„ ±2 % voltage regulator accuracy over specified temperature and supply ranges
„ Voltage regulator output undervoltage detection with reset output
„ Voltage regulator is short-circuit proof to ground
„ Voltage regulator stable with ceramic, tantalum and aluminum electrolyte capacitors
„ Robust ESD performance; ±8 kV according to IEC61000-4-2 for pins LIN and VBAT
„ Pins LIN and VBAT protected against transients in the automotive environment
(ISO 7637)
„ Very low LIN bus leakage current of < 2 μA when battery not connected
„ LIN pin short-circuit proof to battery and ground
„ Transmit data (TXD) dominant time-out function
„ Thermally protected
„ Very low ElectroMagnetic Emission (EME)
„ High ElectroMagnetic Immunity (EMI)
„ Typical Standby mode current of 45 μA
„ Typical Sleep mode current of 12 μA
„ LIN bus wake-up function
„ Available in SO8 and HVSON8 packages
„ Leadless HVSON8 package with wettable sides



No Preview Available !

NXP Semiconductors
TJA1028
LIN transceiver with integrated voltage regulator
„ K-line compatible
„ Pb-free; Restriction of Hazardous Substances (RoHS) and dark green compliant
3. Ordering information
Table 1. Ordering information
Type number
Package
Name
TJA1028T/xxx/xx[1][2]
SO8
TJA1028TK/xxx/xx[1][2] HVSON8
Description
plastic small outline package; 8 leads; body width 3.9 mm
plastic thermal enhanced very thin small outline package; no leads;
8 terminals; body 3 × 3 × 0.85 mm
Version
SOT96-1
SOT782-1
[1] TJA1028T/5V0/xx and TJA1028TK/5V0/xx for the versions with the 5 V regulator; TJA1028T/3V3/xx and TJA1028TK/3V3/xx for the
versions with the 3.3 V regulator.
[2] TJA1028T/xxx/20 and TJA1028TK/xxx/20 for the normal slope versions that support baud rates up to 20 kBd; TJA1028T/xxx/10 and
TJA1028TK/xxx/10 for the low slope versions that support baud rates up to 10.4 kBd (SAE J2602).
4. Marking
Table 2. Marking codes
Type number
TJA1028T/5V0/10
TJA1028T/5V0/20
TJA1028T/3V3/10
TJA1028T/3V3/20
TJA1028TK/5V0/10
TJA1028TK/5V0/20
TJA1028TK/3V3/10
TJA1028TK/3V3/20
Marking
1028/51
1028/52
1028/31
1028/32
28/51
28/52
28/31
28/32
www.DataSheet4U.com
TJA1028
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 25 February 2011
© NXP B.V. 2011. All rights reserved.
2 of 24



No Preview Available !

NXP Semiconductors
5. Block diagram
TJA1028
LIN transceiver with integrated voltage regulator
VBAT
VOLTAGE
REFERENCE
VBAT
OVERTEMP
DETECTION
LIN
TJA1028
Fig 1. Block diagram
VREG
CONTROL
VBAT
UV
DET
VCC
UV
DET
VCC
EN
GND
RSTN
Rx
RXD
LIN
Tx
TXD
TIMEOUT
VCC
TIMER
TXD
GND
015aaa085
www.DataSheet4U.com
TJA1028
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 25 February 2011
© NXP B.V. 2011. All rights reserved.
3 of 24



No Preview Available !

NXP Semiconductors
TJA1028
LIN transceiver with integrated voltage regulator
6. Pinning information
6.1 Pinning
VBAT 1
EN 2
GND 3
LIN 4
TJA1028T
8 VCC
7 RSTN
6 TXD
5 RXD
015aaa082
a. TJA1028T/xxx/xx: SO8
Fig 2. Pin configuration diagrams
terminal 1
index area
VBAT 1
EN 2
GND 3
LIN 4
TJA1028TK
8 VCC
7 RSTN
6 TXD
5 RXD
015aaa244
Transparent top view
b. TJA1028TK/xxx/xx: HVSON8
6.2 Pin description
Table 3.
Symbol
VBAT
EN
GND
LIN
RXD
TXD
RSTN
VCC
Pin description
Pin
1
2
3[1]
4
5
6
7
8
Description
battery supply for the TJA1028
enable input
ground
LIN bus line
LIN receive data output
LIN transmit data input
reset output (active LOW)
voltage regulator output
[1] HVSON8 package die supply ground is connected to both the GND pin and the exposed center pad. The
GND pin must be soldered to board ground. For enhanced thermal and electrical performance, it is
recommended that the exposed center pad also be soldered to board ground.
7. Functional description
www.DataSheet4U.com
The TJA1028 combines the functionality of a LIN transceiver and a voltage regulator in a
single chip and offers wake-up by bus activity. The voltage regulator is designed to power
the Electronic Control Unit’s (ECU) microcontroller and its peripherals.
The TJA1028 is the interface between a LIN master/slave protocol controller and the
physical bus in a Local Interconnect Network (LIN). It is LIN 2.0/2.1/SAE J2602 compliant
and achieves optimum ElectroMagnetic Compatibility (EMC) performance by wave
shaping the LIN output.
TJA1028
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 25 February 2011
© NXP B.V. 2011. All rights reserved.
4 of 24



TJA1028 datasheet pdf
Download PDF
TJA1028 pdf
View PDF for Mobile


Related : Start with TJA102 Part Numbers by
TJA1020 LIN transceiver TJA1020
NXP
TJA1020 pdf
TJA1020T LIN transceiver TJA1020T
NXP
TJA1020T pdf
TJA1020U LIN transceiver TJA1020U
NXP
TJA1020U pdf
TJA1020_5 LIN transceiver TJA1020_5
NXP
TJA1020_5 pdf
TJA1021 Transceiver TJA1021
NXP
TJA1021 pdf
TJA1028 LIN transceiver TJA1028
NXP Semiconductors
TJA1028 pdf

Index :   0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z   

This is a individually operated, non profit site. If this site is good enough to show, please introduce this site to others.
Since 2010   ::   HOME   ::   Contact