Specifications

Wireless CPU
®
Q24 Series
Interfaces
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prior written agreement.
WM_PGM_Q24NG_PTS_001-005 November 20, 2007
Li-Ion battery and tunable parameters
Parameters Default value Min Max Unit
T1 90 70 90 min
T2 90 60 90 min
T3 5000 100 10000 ms
BattLevelMin 3400 3400 3800 mV
BattLevelMax 4200 4000 5000 mV
DedicatedVoltStart 4000 4000 4199 mV
ChargingCurrent 500 500 800 mA
MaxVoltPulse 4608 4200 4608 mV
TdeltaTemp 3 1 5 mm
Max_Battery_Temp_Volt
2171 (≈3ûC) 1816 (≈14ûC) 2256 (≈ 0ûC)
mV
Max_Battery_Temp_Volt
908 (≈42û) 831 (≈45ûC) 1233 (≈31ûC)
mV
Li-Ion charging process
Charger connected: CHG_IN =VBATT+0.5V
VBATT
Operating
system
Charging status Switching transistor
(T)
VBATT<2V8
Not
activated
ge Open
Trickle char
2V8<VBATT<3V2
Not
t
Pre-charging 50mA typ cross the
switching transistor activa ed
3V2<VBATT<BattLevelMin
Activ ocess is
automatically started
Close
ated Fast charging pr
Fast cha
running
Close (<T1) rging process BattLevelMin<VBATT
VBATT< BattLevelMax
Ac
Charging e no
activated
VBATT is monitored
periodically (T3)
tivated
proc ss t
Deactivated Trickle charge Open
>=BattLevelMax
Activated If after “n” periods
(1<n<100) of charge
(nx0.1s), the VBATT
Open: Timing
increases regularly
from 0.1s to
voltage is measured
higher than
“BattLevelMax”, the
battery charge is stopped.
10s
Close: 1s
Open and close being
periodical