New Industry Products

ON Semiconductor Introduces NCP800 Battery Protection IC

June 04, 2001 by Jeff Shepard

ON Semiconductor (Phoenix, AZ) has introduced a new protection IC for one-cell lithium-ion and lithium-polymer battery packs. The new NCP800 offers internally trimmed precision charge and discharge voltage limits.

In order to maintain cell operation within specified limits, the NCP800 senses cell voltage and discharge current, and correspondingly controls the state of two n-channel MOSFET switches. These switches reside in series with the negative terminal of the cell and the negative terminal of the battery pack. During a fault condition, the NCP800 open-circuits the pack by turning off one of these MOSFET switches. ON Semiconductor designed the protection IC with an automatic reset from discharge current faults. The device operates in a low-current standby state when the cells are discharged.

The NCP800 is offered in the TSOP-6 package with samples and production quantities currently available. The suggested resale price is $0.41 per 12,000 units.