ON Semiconductor NCV7425EVB User Manual

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
 Semiconductor Components Industries, LLC, 2011
November, 2011 − Rev. 0
EVAL BOARD USER'S MANUAL
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
1
http://onsemi.com
Publication Order Number:
EVBUM2045/D