System module block diagram
Energy management
Battery and charging
BL-5F battery
The phone is powered by a 3-pole BL-5F 950 mAh battery (Li-Ion). The three poles of the battery are named
VBAT, BSI and GND, where the BSI line is used to recognize the battery capacity. This is done by means of an
internal battery pull down resistor.
Figure 30 Battery pin order
The battery temperature is estimated by measuring separate battery temperature NTC via the BTEMP line of
EM ASIC (N2200). This resistor is located on the main PWB, at a place where the phone temperature is closest
to the battery temperature.
Battery connector
The battery connector is a blade connector. It has three blades;
•
BSI (Battery size indicator)
RM-627
System Module
Issue 1
COMPANY CONFIDENTIAL
Page 5 – 7
Copyright © 2010 Nokia. All rights reserved.
Содержание RM-627
Страница 111: ...4 RF troubleshooting Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page 4 1 Copyright 2010 Nokia All rights reserved ...
Страница 141: ...5 System Module Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page 5 1 Copyright 2010 Nokia All rights reserved ...
Страница 159: ...Glossary Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page Glossary 1 Copyright 2010 Nokia All rights reserved ...