TJA1029 Просмотр технического описания (PDF) - NXP Semiconductors.
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TJA1029 Datasheet PDF : 24 Pages
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TJA1029
LIN 2.2A/SAE J2602 transceiver with TXD dominant timeout
Rev. 1 — 8 January 2013
Product data sheet
1. General description
The TJA1029 is the interface between the Local Interconnect Network (LIN) master/slave
protocol controller and the physical bus in a LIN network. It is primarily intended for
in-vehicle subnetworks using baud rates up to 20 kBd and is compliant with LIN 2.0,
LIN 2.1, LIN 2.2, LIN 2.2A and SAE J2602. The TJA1029 is pin-compatible with the
TJA1020, TJA1021, TJA1022 and TJA1027.
The protocol controller generates the transmit data stream. The TJA1029 converts the
data stream into an optimized bus signal shaped to minimize ElectroMagnetic Emissions
(EME). The LIN bus output pin is pulled HIGH via an internal termination resistor. For a
master application, connect an external resistor in series with a diode between pin VBAT
and pin LIN. The receiver detects a receive data stream on the LIN bus input pin and
transfers it via pin RXD to the microcontroller.
Power consumption is very low in Sleep mode. However, the TJA1029 can still be woken
up via pins LIN and SLP_N. An integrated TXD dominant time-out function prevents the
bus being driven to a permanent dominant state.
2. Features and benefits
2.1 General
Compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A and SAE J2602
Baud rate up to 20 kBd
Very low ElectroMagnetic Emissions (EME)
Very low current consumption in Sleep mode with remote LIN wake-up
Input levels compatible with 3.3 V and 5 V devices
Integrated termination resistor for LIN slave applications
Passive behavior in unpowered state
Operational during cranking pulse: full operation from 5 V upwards
Undervoltage detection
K-line compatible
Available in SO8 and HVSON8 packages
Leadless HVSON8 package (3.0 mm 3.0 mm) with improved Automated Optical
Inspection (AOI) capability
Dark green product (halogen free and Restriction of Hazardous Substances (RoHS)
compliant)
Pin-compatible subset of the TJA1020, TJA1021 and TJA1022
Pin-compatible with the TJA1027
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