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Charger connector and charging interface connections & electrical characteristics
Figure 115 Charger connector
Table 21 Charging interface connections
Pin
Signal
I/O
Engine connection
Notes
1
Vchar
In
Tahvo
VCharIn1, 2
Charging
voltage /
charger
detection,
Center pin
2
Charge GND
Ground
Charger ground
Table 22 Charging IF electrical characteristics
Description
Parameter
Min
Max
Unit
Notes
Vchar
V Charge
0
9
V
Center pin
Vchar
I Charge
0.85
A
Center pin
Charge GND
0.85
A
Threshold for
charging, rising
(TAHVO)
V
MSTR+
2.1
V
Typical value
Threshold for
charging,
falling (TAHVO)
V
MSTR-
1.9
V
Typical value
RM-57/58
System Module
Nokia Customer Care
Issue 1
Company Confidential
Page 9–33
Copyright ©2005 Nokia. All Rights Reserved.
Summary of Contents for RM-57
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