© 1997 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA 91320

BATTERY

CHARGE CONTROLLER

SC1766

Janaury 30, 1998

TYPICAL APPLICATIONS

Step-Down High-Side Current Sense Battery Charger

NOTE:

RSENSE = 0.1 ohm, CHARGE CURRENT = 0.5A ±10%, V

RSENSE = 0.05 ohm, CHARGE CURRENT = 1.0A ±10%, V

RSENSE = 0.033 ohm, CHARGE CURRENT = 1.5A ±10%, V

EFFICIENCY > 90%, MEASURED AT CS- NODE

NOTE: +V

proximately 1A, adjustable through R7. Trickle charge current is adjustable through R12.

Step-Down Rechargeable Battery Charger