ST3S01PHD Datasheet, PDF (1/17 Pages) STMicroelectronics – BATTERY CHARGE I.C.

ST3S01PHD
BATTERY CHARGE I.C.
s DEDICATED I.C. FOR 1 LI-ION CELL OR 3
NI-MH CELLS
s 5 DIFFERENT OPERATING MODES
s 150 mA PRECHARGE CURRENT
s VERY LOW DROP CHARGE SWITCH
(130mV @ 800mA)
s VERY LOW DROP REVERSE SWITCH
(130mV @ 800mA)
s 5.7V OVER BATTERY OVER VOLTAGE
PROTECTION
s CHARGER DETECTION MODE
s (V_CHARGE-V_BATT) DETECTION MODE
DESCRIPTION
This specification describes a dedicated I.C.
which allows to charge 1 Lilon cell or 3 Nimh cells.
The principle used to charge the batteries is the
pulsed current, the monitoring is operated by the
micro-controller of the application. This IC
integrates one Power Switch and achieves the
SO-8
exposed pad
charge batteries in two different modes charge or
precharge.
One of this operating mode (charge or precharge)
can be selected in a static or pulsed way by one I/
O from a micro-controller. The IC can supply
power to accessories controlled by this I.C. in
Reverse mode. The I.C. is available in the smaller
and surface mounted SO-8 (exposed pad version)
package.
SCHEMATIC DIAGRAM
September 2003
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