kak111
Advanced Member level 4
Nokia 2-mm DC Charging Interface Specification
This document specifies the electrical and mechanical charging interface between Nokia mobile devices
and power-supply accessories, specifically chargers. It also defines the charger-identification process of
these mobile devices. The specification is valid only for devices with a 2-mm charging interface.
The interface supports the following two types of two-wire chargers:
1. Constant current chargers (standard charger)
A constant current type charger may have a wide output current range and the current may change
with other parameters. The specifications for a constant current charger appear in Chapter 3,
“Electrical specification for constant current type chargers.â€
2. Special chargers
Special chargers take charging energy from a solar cell or hand-operated generator, for example.
External charging conditions have a great impact on the charging current — the waveform of the
charging current is unknown and charging can even be stopped. Battery charging time may vary
considerably. Specifications for special chargers are described in Chapter 4, “Electrical specification for
special chargers.â€
http://www.herjulf.se/solar/charge-..._Charging_Interface_Specification_v1_2_en.pdf
This document specifies the electrical and mechanical charging interface between Nokia mobile devices
and power-supply accessories, specifically chargers. It also defines the charger-identification process of
these mobile devices. The specification is valid only for devices with a 2-mm charging interface.
The interface supports the following two types of two-wire chargers:
1. Constant current chargers (standard charger)
A constant current type charger may have a wide output current range and the current may change
with other parameters. The specifications for a constant current charger appear in Chapter 3,
“Electrical specification for constant current type chargers.â€
2. Special chargers
Special chargers take charging energy from a solar cell or hand-operated generator, for example.
External charging conditions have a great impact on the charging current — the waveform of the
charging current is unknown and charging can even be stopped. Battery charging time may vary
considerably. Specifications for special chargers are described in Chapter 4, “Electrical specification for
special chargers.â€
http://www.herjulf.se/solar/charge-..._Charging_Interface_Specification_v1_2_en.pdf
