IEC 62637-1:2011

IEC 62637-1 ®
Edition 1.0 2011-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Battery charging interface for small handheld multimedia devices –
Part 1: 2 mm barrel interface
Interface de charge de batterie pour petits appareils multimédia portables –
Partie 1: Spécification de l'interface cylindrique 2 mm

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IEC 62637-1 ®
Edition 1.0 2011-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Battery charging interface for small handheld multimedia devices –
Part 1: 2 mm barrel interface
Interface de charge de batterie pour petits appareils multimédia portables –
Partie 1: Spécification de l'interface cylindrique 2 mm

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX S
ICS 33.160.99; 97.18 ISBN 978-2-88912-597-5

– 2 – 62637-1  IEC:2011
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 – 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
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
BATTERY CHARGING INTERFACE FOR SMALL HANDHELD
MULTIMEDIA DEVICES –
Part 1: 2 mm barrel interface
FOREWORD
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