Semiconductor Components Industries, LLC, 2011
November, 2011
−
Rev. 0
1
Publication Order Number:
EVBUM2045/D
NCV7425EVB
NCV7425 LIN Transceiver
with Voltage Regulator and
Reset Pin Evaluation Board
User's Manual
Introduction
This document describes the NCV7425EVB board for the
ON Semiconductor NCV7425 LIN Transceiver with
Voltage Regulator and Reset pin. The functionality and
major parameters can be evaluated with the NCV7425EVB
board.
The NCV7425 is a fully featured local interconnect
network (LIN) transceiver designed to interface between a
LIN protocol controller and the physical bus.
The NCV7425 LIN device is a member of the in-vehicle
networking (IVN) transceiver family of ON Semiconductor
that integrates a LIN v2.1 physical transceiver and a
low-drop voltage regulator. It is designed to work in harsh
automotive environment and is submitted to the TS16949
qualification flow.
Evaluation Board Features
One-row Pin Header Connecting to all Circuit Signals
Enables Easy Insertion of the Evaluation Board into a
more Complex Application Setup. The Header can be
Alternatively Assembled either Perpendicular or
Parallel with the Board Plane
Oscilloscope Test-points on All Circuit Signals
Reverse Protection and Decoupling on the Main
(Battery) Supply
Decoupling on VCC Regulator Output
Additional Pull-up Resistor on the RSTN Open-drain
Output
Filtering Circuit on the Switch-monitoring WAKE
Input
On-board Local Wakeup Switch
LIN-bus Termination and Optional ESD Protection
Good Thermal Connection of the Circuit’s Exposed Pad
to the Bottom Ground Plane
NCV7425 Key Features
LIN-Bus Transceiver
LIN Compliant to Specification Revision 2.1
(Backward Compatible to Versions 2.0 and 1.3)
and SAE J2602
Bus Voltage
45 V
Transmission Rate up to 20 kBaud
Integrated Slope Control for Improved EMI
Compatibility
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
ESD Protection Level for LIN, INH, WAKE and
Vbb up to
10 kV
Voltage Regulator
Two Device Versions: Output Voltage 3.3 V or 5 V
for Loads up to 150 mA
Under-voltage Detector with a Reset Output to the
Supplied Microcontroller
Over-current Limitation
INH Output for Auxiliary Purposes (Switching of an
External Pull-up or Resistive Divider towards
Battery, Control of an External Voltage Regulator
etc.)
Typical Applications
Automotive
Industrial Network
http://onsemi.com
EVAL BOARD USER’S MANUAL
