BQ24700_14 Datasheet, PDF (24/32 Pages) Texas Instruments – NOTEBOOK PC BATTERY CHARGE CONTROLLER

bq24700, bq24701
ą
NOTEBOOK PC BATTERY CHARGE CONTROLLER
AND SELECTOR WITH DPM
SLUS452B – APRIL 2001 – REVISED NOVEMBER 2002
APPLICATION INFORMATION
selector/ALARM timing example
The selector and ALARM timing example in Figure 10 illustrates the battery conditioning support.
NOTE:For manual selection of wall power as the main power source, both the ACPRES and
ACSEL signals must be a logic high.
ACPRES
ACSEL
ACDRV
BATDRV
ALARM
bq24701 ONLY
BATTERY
DEPLETE
CONDITION
UDG–00122
ACSEL
(ACPRES)
tBATSEL
ACDRV
BATDRV
tACSEL
BATDEP< 1 V
tACSEL
BATDRV
ACDRV
tBATSEL
Figure 10. Battery Selector and ALARM Timing Diagram
UDG–00120
24
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265