Specifications

Wireless CPU
®
Q24 Series
Interfaces
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WM_PGM_Q24NG_PTS_001-005 November 20, 2007
h charging process Ni-Cd / Ni-M
Charger connected: CHG_IN =VBATT+0.5V
VBATT Operating
system
Charging status Switching transistor
(T)
VB TT<2V8 Not activated Trickle charge Open A
2V8<V charging 50mA typ cross the BATT<3V2 Not activated Pre-
switching transistor
3V2<VBATT
BattLevelMin
Activated Charging process is
automati
Open (T2)/Close (T1)
VBA <
cally started periodically
TT
Charging process
running
Open (T2)/Close (T1)
periodically
Activated
Charging process not
activated
VBATT is monitored
periodically (T3)
BattLev
VBATT<BattLevelMax
Deactivated Trickle charge Open
elMin<VBATT
C
ended
harging proc is Open ess>=BattLevelMax Activated
The gra marizes the g process e and disc .
Note:
ph below sum chargin (charg harge)
A ch the CHG_ of the Wir PU
®
.
Figure 8: Ni-Cd / Ni-Mh charging waveform
arger is connected to IN pin eless C
VBATT=BattLev
proces
elMax:
Charging
ended
s
VBAT :
Ch
automatically
T3
T3
T2 T2
T1 T1
T=BattLevelMin
arging process
started
T1
T2
Switc
Closed
O
hing transistor:
pen
Time
VB
BattLevelMax
BattLevelMin
AT
T
Time