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NCV7420 fiches techniques PDF

ON Semiconductor - LIN Transceiver

Numéro de référence NCV7420
Description LIN Transceiver
Fabricant ON Semiconductor 
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NCV7420 fiche technique
NCV7420
LIN Transceiver with 3.3 V
or 5 V Voltage Regulator
General Description
The NCV7420 is a fully featured local interconnect network (LIN)
transceiver designed to interface between a LIN protocol controller
and the physical bus. The transceiver is implemented in I3T
technology enabling both high−voltage analog circuitry and digital
functionality to co−exist on the same chip.
The NCV7420 LIN device is a member of the in−vehicle
networking (IVN) transceiver family of ON Semiconductor that
integrates a LIN v2.0/2.1 physical transceiver and either a 3.3 V or a
5 V voltage regulator.
The LIN bus is designed to communicate low rate data from control
devices such as door locks, mirrors, car seats, and sunroofs at the
lowest possible cost. The bus is designed to eliminate as much wiring
as possible and is implemented using a single wire in each node. Each
node has a slave MCU−state machine that recognizes and translates
the instructions specific to that function. The main attraction of the
LIN bus is that all the functions are not time critical and usually relate
to passenger comfort.
www.onsemi.com
PIN CONFIGURATION
14
1
VBB
LIN
GND
SOIC−14
D SUFFIX
CASE 751AP
GND
WAKE
INH
OTP_ZAP
1
2
3
4
5
6
7
14
13 VCC
RxD
12
TxD
11
GND
10
STB
9
EN
8
TEST
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 19 of this data sheet.
KEY FEATURES
LIN−Bus Transceiver
LIN compliant to specification revision 2.0 and 2.1
(backward compatible to version 1.3) and J2602
I3T high voltage technology
Bus voltage ±45 V
Transmission rate up to 20 kBaud
Protection
Thermal shutdown
Indefinite short−circuit protection on pins LIN and
WAKE towards supply and ground
Load dump protection (45 V)
Bus pins protected against transients in an automotive
environment
System ESD protection level for LIN, WAKE and VBB
up to ±12 kV
Voltage Regulator
Output voltage 5 V / ~50 mA or 3.3 V / ~50 mA
Wake−up input
Enable inputs for standby and sleep mode
INH output for auxiliary purposes (switching of an
external pull−up or resistive divider towards battery,
control of an external voltage regulator etc.)
EMI Compatibility
Integrated slope control
Meets most demanding EMS/EME requirements
Modes
Normal mode: LIN communication in either low (up to
10 kBaud) or normal slope
Sleep mode: VCC is switched “off” and no
communication on LIN bus
Standby mode: VCC is switched “on” but there is no
communication on LIN bus
Wake−up bringing the component from sleep mode into
standby mode is possible either by LIN command or
digital input signal on WAKE pin. Wake−up from LIN
bus can also be detected and flagged when the chip is
already in standby mode.
Quality
NCV Prefix for Automotive and Other Applications
Requiring Unique Site and Control Change Require−
ments; AEC−Q100 Qualified and PPAP Capable
These Devices are Pb−Free, Halogen Free/BFR Free
and are RoHS Compliant
© Semiconductor Components Industries, LLC, 2015
May, 2015 − Rev. 9
1
Publication Order Number:
NCV7420/D

PagesPages 20
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