Table 20 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
Battery connector and interface connections & electrical characteristics
Figure 119 Battery connector
Table 21 Battery interface connections
Pin
Signal
I/O
Engine connection
Notes
1
VBAT
->
Retu
VBAT
Battery voltage
2
BSI
->
Retu
BSI
Battery size
indication
(fixed resistor
inside the
battery pack)
3
GND
GND
Ground
Table 22 Battery IF electrical characteristics
Description
Parameter
Max
Unit
Operation voltage
V
IN
4.23
VDC
Current rating
I
IN
0.9
A
Internal interfaces
Name of Connection
Connector reference
Notes
Fold unit connector
X4400
RM-42
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