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/Title (EVBUM2484DB - NCV7748 Evaluation Board User's Manual)
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Acrobat Distiller 19.0 (Windows)
BroadVision, Inc.
2019-11-08T14:18:33+08:00
2019-11-08T14:16:53+08:00
2019-11-08T14:18:33+08:00
application/pdf
EVBUM2484DB - NCV7748 Evaluation Board User's Manual
ON Semiconductor
The NCV7748 is an octal low-side relay driver for automotive
applications targeted for use in a Power Distribution Box (PDB).
Communication to the device is through a LIN bus compliant to SAE
J2602 and LIN 2.x. All drivers have passive output clamps for limiting
output voltage spikes during flyback events during inductive relay
turn-off events.
This evaluation board is intended for evaluation of the output
drivers, and highlights many of the features of the device.
The NCV7748 has two types of low-side drivers. One is intended to
run outside of the module and the other is targeted for use inside the
module. All outputs have Overcurrent Detection, but the output
drivers intended for use external to the module (OUT4, OUT8) have
added Open Load detection and individual Overtemperature (Thermal
Shutdown) detection. The evaluation board includes NEC EX2
automotive relay loads, with the option to disconnect these loads and
use customer defined external loads.
Output control is interfaced with the use of dip switches and
a push-button. Output Control Commands as well as Output errors can
be read from the LCD display. Truth tables are included in silk screen
on the PCB for ease of use for both command control and error
deciphering.
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