NSW-6
System Module SE2
PAMS Technical Documentation
Page 9
Issue 1 12/99
Nokia Mobile Phones Ltd.
Battery Connector
Battery contact signals
Pin
Name
Min
Typ
Max
Unit
Notes
4
BVOLT
3.0
3.6
4.5
5 0
V
Battery voltage
Maximum voltage in call state with charger
5.0
5.3
Maximum voltage in call state with charger
Maximum voltage in idle state with charger
3
BSI
0
2.85
V
Battery size indication
Phone has 100kohm pull up resistor.
SIM Card removal detection
(Threshold is 2.4V@VBB=2.8V)
18
1%
kohm
Battery indication resistor (Ni battery)
20
22
24
kohm
Battery indication resistor (service battery)
33+/1
kohm
Battery indication resistor (4.1V 600 mAh Lith-
ium battery)
47+/–
10%
kohm
Battery indication resistor (Flash adapter)
2
BTEMP
0
1.4
V
Battery temperature indication
Phone has a 100k (+–5%) pullup resistor,
Battery package has a NTC pulldown resistor:
47k+–5%@+25C , B=4050+–3%
2.1
1
10
3
20
V
ms
Phone power up by battery (input)
Power up pulse width
1.9
90
100
2.85
200
V
ms
Battery power up by phone (output)
Power up pulse width
1
BGND
0
0
V
Battery ground
Charging Connector
Contact
Line Symbol
Function
DC–jack side contact
(DC–plug ring)
L_GND
Charger ground
DC–jack center pin
VIN
Charger input voltage
DC–jack side contact
(DC–plug jacket)
CHRG_CTRL
Charger control output (from phone)