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written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU
®
Electrical characteristics of battery charging interface
Parameter
Minimum Typ Maximum
Unit
Charging operating temperature
0
50
°C
Maximum output
code
1635
LSB
Sampling rate
216
S/s
Input Impedance ( R )
1M
Ω
ADC1/BAT-TEMP
(pin 20 )
Input signal range
0
2
V
Voltage (for I=Imax)
4.8*
V
Voltage (for I=0)
6*
V
CHG-IN (pin 6, 8 )
DC Current
400**
800 mA
•
* To be configured as specified by the battery manufacturer
•
** : Take care ; this value has to be selected in function of the power consumption mode
used: please refer to the power consumption tables § 3.2.2.
WARNINGS:
o
The Charger DC power supply must have an output current limited to
800mA.
o
The maximum Charger output current, provided to the battery, must be
accorded to the battery electrical characteristics.
o
Li-Ion batteries must be used with the embedded PCM (Protection
Circuit Module).
o
The maximum charging voltage is up to 4,3V (Software drive)
o
At the first plug, if the battery Li-ion is locked by its PCM the charger
function doesn't work.
