DA9011.001

28 Jan 2004

1 (9)

MAS9011

Solar Cell System Manager

• Power On Indicator

• Low Battery Indicator

• Battery Overcharging

Protection

DESCRIPTION

The solar cell system manager is an analog circuit,

which monitors the supply voltage of a battery-

powered system containing solar cells. The solar

manager uses three output signals to indicate the

state of the system. Power On (PO) indicates

whether the supply voltage is high enough to run

the system. Low Battery (LB) is used to signal the

situation where the battery is low. The third signal,

SOL, is used for battery charging control. It

indicates when the battery is full and the charging

process should be stopped.

FEATURES

APPLICATIONS

•

Power On Indicator

•

Low Battery Indicator

•

Battery Overcharging Protection

•

Solar Cell Powered Watch

BLOCK DIAGRAM

LB

PO

VDD

SOL

GND

MAS9011

This is preliminary information on a new

product under development. Micro Analog

Systems Oy reserves the right to make any

changes without notice.