CCS Technical Documentation Engine module
Company confidential RH-18/36/38
Issue 1 10/03 Nokia Corporation. Page 13
DC Characteristics
Supply Voltage Ranges
Table 3: Absolute Maximum Ratings
Following voltages are the normal and extreme voltages for the battery:
Table 4: Battery voltage range
1
According to the GSM specifications, a GSM-device must work correctly if it is powered
by his nominal voltage +/-15%. The UEM hardware shut down is from 3.10V and below.
The Energy Managment of the phone is shutting down the phone at 3.20V in order to
perform a correct shutdown of the phone. Above 3.20V + tolerances, at 3.21V, the phone
is still fullfilling all the GSM requirements. The Nominal voltage is therefore set at 3.80V.
During fast charging of an empty battery voltages between 4.20 and 4.60 might appear
for a short while.
Signal Rating
Battery Voltage 0... 4.39V (VBAT)
Charger Input Voltage -0.3... 9.2VRMS (16,9 Vpeak)
Signal Min. Nom Max Note
VBAT 3.21V 3.80V 4.39V 1
Vcoff+ 3.0V 3.1 3.2 HW off to on
Vcoff- 2.7V 2.8V 2.9V HW on to off
Vmstr+ 2.0V 2.1V 2.2V UEM off to on
Vmstr- 1.8V 1.9V 2.0V UEM on to off
Sw shutdown - 3.1V - In Call
Sw shutdown - 3.2V - In Idle
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