EN 62637-1:2011

Battery charging interface for small handheld multimedia devices - Part 1: 2 mm barrel interface

IEC 62637-1:2011 defines a charging interface between small handheld multimedia devices and power-supply accessories, specifically chargers. Devices, which could be based on this standard may vary over time, but have to comply with the limited power available. The interface is a 2 mm barrel type charging interface. The French version of this standard has not been voted upon. This bilingual version (2011-07) replaces the English version.

Batterie-Ladeschnittstelle für kleine tragbare Multimedia-Geräte - Teil 1: 2-mm-Zylinder-Schnittstellen-Spezifikation

Interface de charge de batterie pour petits appareils multimédia portables – Partie 1: Spécification de l'interface cylindrique 2 mm

La CEI 62637-1:2011 définit une interface de charge entre de petits appareils multimédia portables et des accessoires d'alimentation, en particulier des chargeurs. Les appareils selon la présente norme peuvent varier dans le temps, mais ils doivent rester dans la limite de la puissance disponible. L'interface est une interface de charge de type cylindrique 2 mm. La version française de cette norme n'a pas été soumise au vote. La présente version bilingue,publiée en 2011-07, correspond à la version anglaise.

Vmesnik za polnjenje baterij majhnih ročnih večpredstavnostnih naprav - 1. del: Specifikacija 2-milimetrskih cevastih vmesnikov (IEC 62637-1:2011)

Ta del IEC 62637 določa vmesnik polnjenja med majhnimi ročnimi večpredstavnostnimi napravami in dodatki za napajanje, zlasti polnilniki. Naprave, ki lahko temeljijo na tem standardu, se lahko v času spreminjajo, vendar morajo ustrezati omejenemu napajanju, ki je na voljo. Ta vmesnik je 2-milimetrski cevasti vmesnik za polnjenje. Ta standard ne vključuje celega polnilnika niti ne vključuje notranjih funkcij naprave. Polnilniki in naprave morajo sledili veljavnim EMC in varnostnim standardom.

General Information

• Status: Published
• Publication Date: 05-May-2011
• Withdrawal Date: 03-May-2014
• ICS: 33.160.99 - Other audio, video and audiovisual equipment
• ICS: 97.180 - Miscellaneous domestic and commercial equipment
• Technical Committee: CLC/TC 100X - Audio, video and multimedia systems and equipment and related sub-systems
• Drafting Committee: IEC/TC 100 - IEC_TC_100
• Parallel Committee: IEC/TC 100 - IEC_TC_100
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 06-May-2011
• Completion Date: 06-May-2011
• Ref Project: SIST EN 62637-1:2011 - Battery charging interface for small hand held multimedia devices - Part 1: 2mm barrel interface specification (IEC 62637-1:2011)

Overview

EN 62637-1:2011 - Battery charging interface for small handheld multimedia devices (Part 1: 2 mm barrel interface) defines the electrical and mechanical charging interface between small handheld multimedia devices and their power-supply accessories (chargers). The standard specifies a 2 mm barrel-type charging connector and the interface limits that ensure safe, reliable charging while accommodating limited available power. It does not cover the entire charger design or internal device functions; applicable EMC and safety standards remain mandatory.

Key topics and technical requirements

EN 62637-1:2011 focuses on interface-level requirements to enable interoperable chargers and accessories. Main technical topics include:

• Connector and mechanical requirements - physical details of the 2 mm barrel plug and receptacle, polarity conventions and mechanical durability considerations.
• Electrical specification - limits and behaviour required at the charger output such as permitted output capacitance, transient voltage/current limits, and output settling times.
• Output quality - maximum permitted ripple voltage and high‑frequency voltage components to avoid interference with device operation.
• Charging window and current behaviour - defined voltage/current window, maximum currents, and current linearity expectations for chargers.
• Accessory interface - electrical and functional requirements for accessories placed between charger and device, including contact specifications, boot-up behaviour and charger identification signals.
• Test aids and annexes - guidance on artificial loads, coupling/decoupling networks and informative connector detail drawings to support design and verification.

Applications and practical value

This standard is intended for designers and manufacturers who need a consistent, interoperable charging solution for low-power handheld multimedia products such as:

• Mobile phones, MP3 players and portable radios
• Small handheld TV receivers and GPS navigators
• Portable gaming devices and digital cameras

Benefits of adopting EN 62637-1 include simplified accessory compatibility, predictable charging performance across suppliers, reduced design rework and clearer requirements for EMC and electrical robustness.

Who should use this standard

• Hardware and accessory designers (chargers, device power inputs, cables)
• Product engineers integrating charging functions into small multimedia devices
• Test and certification labs performing interface compliance checks
• Procurement and regulatory teams specifying interoperable charging systems

Related standards

• IEC 62637-2 - Part 2: 2 mm barrel type interface conformance testing (test methods supporting Part 1)
• Bibliographic reference: IEC 61076-2-102 is noted as harmonized in related documentation

Adopting EN 62637-1:2011 helps ensure a predictable, interoperable 2 mm barrel battery charging interface for small handheld multimedia devices, improving user experience and simplifying accessory ecosystems.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2011
9PHVQLN]DSROQMHQMHEDWHULMPDMKQLKURþQLKYHþSUHGVWDYQRVWQLKQDSUDYGHO
6SHFLILNDFLMDPLOLPHWUVNLKFHYDVWLKYPHVQLNRY,(&
Battery charging interface for small hand held multimedia devices - Part 1: 2mm barrel
interface specification (IEC 62637-1:2011)
Batterie-Ladeschnittstelle für kleine tragbare Multimedia-Geräte - Teil 1: 2-mm-Zylinder-
Schnittstellen - Spezifikation (IEC 62637-1:2011)
Interface de charge de batterie pour petits appareils multimédia portables – Partie 1:
Spécification de l'interface cylindrique 2 mm (CEI 62637-1:2011)
Ta slovenski standard je istoveten z: EN 62637-1:2011
ICS:
29.200 8VPHUQLNL3UHWYRUQLNL Rectifiers. Convertors.
6WDELOL]LUDQRHOHNWULþQR Stabilized power supply
QDSDMDQMH
33.160.99 Druga avdio, video in Other audio, video and
avdiovizuelna oprema audiovisual equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 62637-1
NORME EUROPÉENNE
May 2011
EUROPÄISCHE NORM
ICS 33.160.99; 97.180
English version
Battery charging interface for small handheld multimedia devices - Part 1:
2 mm barrel interface
(IEC 62637-1:2011)
Interface de charge de batterie pour petits Batterie-Ladeschnittstelle für kleine
appareils multimédia portables – Partie 1: tragbare Multimedia-Geräte -
Spécification de l'interface cylindrique Teil 1: 2-mm-Zylinder-Schnittstellen-
2 mm Spezifikation
(CEI 62637-1:2011) (IEC 62637-1:2011)

This European Standard was approved by CENELEC on 2011-05-04. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62637-1:2011 E
Foreword
The text of document 100/1673/CDV, future edition 1 of IEC 62637-1, prepared by technical area 1,
Terminals for audio, video and data services and contents, of IEC TC 100, Audio, video and multimedia
systems and equipment, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 62637-1 on 2011-05-04.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2012-02-04
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2014-05-04
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62637-1:2011 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 61076-2-102:2002 NOTE  Harmonized as EN 61076-2-102:2002 (not modified).
__________
- 3 - EN 62637-1:2011
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 62637-2 - Battery charging interface for small handheld EN 62637-2 -
multimedia deviced -
Part 2: 2mm barrel type interface
conformance testing
IEC 62637-1 ®
Edition 1.0 2011-03
INTERNATIONAL
STANDARD
Battery charging interface for small handheld multimedia devices –
Part 1: 2 mm barrel interface
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
S
ICS 33.160.99; 97.180 ISBN 978-2-88912-398-8

– 2 – 62637-1  IEC:2011(E)
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Abbreviations and symbols . 7
4 Specifications for 2 mm barrel interface . 7
4.1 General . 7
4.2 Temperature . 8
4.3 Voltage . 8
5 Electrical specification for 2 mm barrel type chargers . 8
5.1 Charger output capacitance . 8
5.2 Maximum transient voltage and current values . 8
5.3 Maximum output ripple voltage . 9
5.4 High-frequency voltage components at the charger output . 10
5.5 Feel current of AC chargers . 11
5.6 Charging voltage/current window . 11
5.7 Current linearity for chargers . 12
6 Accessories connected between the 2 mm barrel charger and the mobile device . 13
6.1 Accessory interfaces . 13
6.2 Electrical specifications for accessories . 14
6.3 Booting up the mobile device when connected to an accessory . 14
6.4 Charger identification . 14
7 Charger identification method for the 2 mm barrel interface . 15
8 Connectors for the 2 mm barrel interface . 15
8.1 Connectors . 15
8.2 Charging voltage polarity . 15
Annex A (normative) Artificial load . 17
Annex B (normative) Coupling/decoupling network . 18
Annex C (informative) Additional information on connectors for 2 mm barrel interface . 19
Bibliography . 21

Figure 1 – Scope of the charging interface standard . 6
Figure 2 – Maximum permitted charger output capacitance . 8
Figure 3 – Maximum duration of charging current overshoot and maximum voltage
undershoot . 9
Figure 4 – Maximum peak-to-peak ripple voltage . 10
Figure 5 – Maximum high-frequency output voltage components. 11
Figure 6 – Charging current/voltage window for 2 mm barrel type chargers . 12
Figure 7 – Current linearity specification example . 13
Figure 8 – Accessory/device interface . 14
Figure 9 – Charger identification voltages . 15
Figure 10 – General view of the 2 mm barrel charging plug . 16
Figure A.1 – Artificial load . 17
Figure B.1 – Coupling/decoupling network . 18

62637-1  IEC:2011(E) – 3 –
Figure C.1 – 2 mm barrel charging plug – Details. 19
Figure C.2 – 2 mm barrel charging receptacle – Details . 19
Figure C.3 – Bending durability . 20

Table 1 – Limits for maximum voltage and settling time . 9
Table 2 – Maximum ripple voltage in different frequency ranges . 10
Table 3 – Maximum conducted interference . 10
Table 4 – Electrical specification for accessory contacts . 14

– 4 – 62637-1  IEC:2011(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
BATTERY CHARGING INTERFACE FOR SMALL HANDHELD
MULTIMEDIA DEVICES –
Part 1: 2 mm barrel interface
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62637-1 has been prepared by technical area 1: Terminals for
audio, video and data services and content, of IEC technical committee 100: Audio, video and
multimedia systems and equipment.
The text of this standard is based on the following documents:
CDV Report on voting
100/1673/CDV 100/1749/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

62637-1  IEC:2011(E) – 5 –
A list of all parts of the IEC 62637 series, under the general title Battery charging interface for
small handheld multimedia devices, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

– 6 – 62637-1  IEC:2011(E)
BATTERY CHARGING INTERFACE FOR SMALL HANDHELD
MULTIMEDIA DEVICES –
Part 1: 2 mm barrel interface
1 Scope
This part of IEC 62637 defines a charging interface between small handheld multimedia
devices and power-supply accessories, specifically chargers. Devices, which could be based
on this standard may vary over time, but have to comply with the limited power available .
The interface is a 2 mm barrel type charging interface. This standard does not include the
whole charger nor does it include the internal functions of the device. Chargers and devices
shall follow the applicable EMC and safety standards. The scope of this part of IEC 62637 is
illustrated in Figure 1.
Charger Battery
Mobile device
Operational, safety and
Operational, safety, Operational, safety and reliability
reliability standards
reliability standards standards,
National / International
National / International National / International Standards
Standards
Standards
EM SW
Charger HW component
Battery specifications
specifications specification EM IC
including protection circuitry
Protection Protection / sa
...