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Li-ion battery switch packs four enable inputs

Posted: 27 Mar 2009 ?? ?Print Version ?Bookmark and Share

Keywords:battery switch? multiple enable input? Li-ion battery?

Maxim Integrated Products has launched the MAX14525 battery switch with four enable inputs optimized for disconnecting a Li-ion battery from its load.

The device features a low, 35m? (typ) Ron and an ultralow, 0.8?A (typ) quiescent supply current. The MAX14525 integrates all necessary components (a comparator, logic, MOSFET, etc.) and eliminates up to eight additional components with its four unique control inputs. Packaged in a tiny (2mm x 2mm) 8-pin TDFN, the MAX14525 is designed for use in cellphones, PDAs and other portable applications.

This switch is enabled from four possible inputs: a travel adapter input capable of high voltages up to 28V; an on-key input with a 3V 2 percent trigger threshold; a switch-enable input that is internally ANDed with the switched battery connection; and a factory-mode enable input.

The MAX14525 is fully specified over the -40C to +85C extended temperature range. Pricing starts at $1.10 (1000-up, FOB USA).

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