ZIOL2201 datasheet(91/92 Pages) RENESAS

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ZIOL2xxx Datasheet

April 26, 2016

Number

Failure

IC Supply

IC function

Reverse

interconnection

of the 24V

power supply

to L+ and L-.

The reverse polarity protection diodes

prevent a power supply of the IC.

No power – no function.

Reverse

interconnection

of the 24V

power supply

to L+ and L-

but in addition

to that is the

24V power

supply falsely

interconnected

to COM/AUX.

Also in

combination

with F1 or F2.

The IC is permanently powered via

the COM/AUX external protection

diodes (and internal parasitic diodes).

A similar situation is if the IC gets

“supply power” via incoming (toggling)

cable signals.

The LF function will detect this as

LINE_FAULT event and will raise an

exception. This exception can be signaled

to the µC via the INT_L signal if

configured accordingly.

Customer recommendation:

Subsequently the µC shall stop any

communication and shall handle (e.g.

signal) the power fail situation.

The voltage of

the regular

24V power

supply drops

under 8V

The control circuit of the IC is

powered regularly but the HV driver

may cause malfunction since the

voltage at the VDD pin dropped below

8V.

The UV function will detect this as

UNDER_VOLTAGE event and will raise

an exception unconditionally.

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DISCLAIMER Integrated Device Technology, Inc. (IDT) reserves the right to modify the products and/or specifications described herein at any time, without notice, at IDT's sole discretion. Performance

specifications and operating parameters of the described products are determined in an independent state and are not guaranteed to perform the same way when installed in customer products. The

information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of IDT's products for any particular purpose, an

implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property

rights of IDT or any third parties.

IDT's products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be

reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.

Integrated Device Technology, IDT and the IDT logo are trademarks or registered trademarks of IDT and its subsidiaries in the United States and other countries. Other trademarks used herein are the

property of IDT or their respective third party owners. For datasheet type definitions and a glossary of common terms, visit www.idt.com/go/glossary. All contents of this document are copyright of Integrated

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