IEC TS 60747-19-2:2021

IEC TS 60747-19-2 ®
Edition 1.0 2021-05
TECHNICAL
SPECIFICATION
Semiconductor devices –
Part 19-2: Smart sensors – Indication of specifications of sensors and power
supplies to drive smart sensors for low power operation
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IEC TS 60747-19-2 ®
Edition 1.0 2021-05
TECHNICAL
SPECIFICATION
Semiconductor devices –
Part 19-2: Smart sensors – Indication of specifications of sensors and power

supplies to drive smart sensors for low power operation

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.080.99 ISBN 978-2-8322-9803-9

– 2 – IEC TS 60747-19-2:2021  IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 Indication of specifications of low-power smart sensors . 8
4.1 Datasheet description of current consumption – time characteristics . 8
4.2 Datasheet description of information regarding under voltage lock out circuit . 10
5 Indication of specifications of power supplies to drive smart sensors . 10
Annex A (informative) Practical example of datasheet description of specifications of
smart sensors . 12
Annex B (informative) Hardware configuration examples of a power supply to drive
smart sensor(s) in a smart sensing unit . 14
Annex C (informative) Supplementary explanations of various signals among the
storage device, the battery and the power generation device . 16
Annex D (informative) Practical example of datasheet description of specifications of
power supply to drive smart sensor(s) . 18

Figure 1 – Block diagram of components in a smart sensing unit . 5
Figure 2 – Example of detailed block diagram of a smart sensing unit . 6
Figure 3 – Example of datasheet description of current consumption–time
characteristics (timing chart) with continuous periodic operations of the low-power
smart sensor . 9
Figure A.1 – Practical example of datasheet description of specifications of smart
accelerometer . 13
Figure B.1 – Hardware configuration examples of a power supply to drive smart
sensor(s) in a smart sensing unit . 15
Figure C.1 – Practical examples of hardware configurations of several signal lines
among the storage, the battery and the power generation device . 17

Table 1 – Example of datasheet description of current consumption–time
characteristics table with continuous periodic operations of the low-power smart sensor . 10
Table D.1 – Practical example of datasheet description of specifications of power
supply to drive smart sensor(s) . 18

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SEMICONDUCTOR DEVICES –
Part 19-2: Smart sensors – Indication of specifications of sensors
and power supplies to drive smart sensors for low power operation

FOREWORD
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rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC TS 60747-19-2 has been prepared by subcommittee 47E: Discrete semiconductor devices,
of IEC technical committee 47: Semiconductor devices. It is a Technical Specification.
The text of this Technical Specification is based on the following documents:
DTS Report on voting
47E/693/DTS 47E/742/RVDTS
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Technical Specification is English.

– 4 – IEC TS 60747-19-2:2021  IEC 2021
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 60747 series, published under the general title Semiconductor
devices, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
INTRODUCTION
The development of smart sensors which integrate analogue-to-digital conversion and digital
processing of the captured sensor signal(s) is in progress. A smart sensing unit, which
comprises a smart sensor; a terminal module, to control the smart sensor and perform wireless
communication; and a power supply for the smart sensor and the terminal module, can send
the output data of the smart sensor wirelessly to the outside. Here, the power supply may be a
plug-in power supply, a battery, an energy harvester, or their combination. A smart sensing
network where a large number of smart sensing units are located in manufacturing factories,
offices, and stores has been examined. With this network, environmental monitoring, sensing
operational situations of manufacturing equipment and sensing other various events contribute
to the realization of the following outcomes by analysing the collected sensing data. Namely,
energy saving, improvement in factory productivity such as operation rate, shortening of
production lead time, preventive equipment maintenance, and product quality improvement can
be achieved.
However, as to the three components of the smart sensing unit, namely, smart sensor, terminal
module, and power supply, standardization regarding control schemes to connect the
components mutually and regarding indication of specifications of the components has not been
sufficiently established yet. This issue leads to the present situation, where the development of
each component in the smart sensing unit has not proceeded efficiently. (Figure 1 shows the
block diagram of the components in the smart sensing unit and Figure 2 shows an example of
the detailed block diagram of the smart sensing unit.)

Key:
1 smart sensing unit
2 smart sensor
3 terminal module
4 power supply
5 electrical connections
Figure 1 – Block diagram of components in a smart sensing unit

– 6 – IEC TS 60747-19-2:2021  IEC 2021

Key:
1 smart sensing unit 8 data processing circuit
2 smart sensor 9 wireless communication circuit
3 sensor element 10 autonomous power supply module
4 analogue-to-digital converting circuit 11 power generation element
5 digital processing circuit 12 power storage element
6 terminal module 13 power management circuit
7 smart sensor control unit 14 electrical connections
Figure 2 – Example of detailed block diagram of a smart sensing unit
The IEC 60747-19 series aims to address this issue. The IEC 60747-19 series comprises two
parts and its structure is currently conceived as follows:
Part 19-1 – Control scheme of smart sensors
Part 19-2 – Indication of specifications of sensors and power supplies to drive smart sensors
for low power operation
Part 19-1 specifies a control scheme of the smart sensor from the terminal module in the smart
sensing unit. Generally, the manufacturers of sensors have incorporated into the sensors
various parameters and cond
...