New Industry Products

Fairchild Unveils Solution for Li-Ion Battery Pack Protection Designs

December 12, 2011 by Jeff Shepard

Designers of mobile products routinely face the challenge of reducing space as well as improving efficiency in every aspect of their design. In devices that use a one-cell Li-Ion battery pack, such as ultraportable applications, this is an area of particular importance.

To help designers meet the challenge of reducing design space and increasing efficiency, Fairchild Semiconductor developed the FDMB2307NZ PowerTrench® MOSFET. This device provides the increased efficiency needed in a form factor that significantly reduces design space.

Designed specifically for Li-Ion battery pack protection circuits and other ultraportable applications, the FDMB2307NZ features dual N-channel common drain MOSFETs, enabling bidirectional current flow.

By using advanced PowerTrench processes, the FDMB2307NZ provides high power density and a maximum Rss(on) of 16.5mΩ at VGS = 4.5V, ID = 8A, resulting in lower conduction losses, lower voltage drop, less power dissipation and increased overall design efficiency when compared to competitive solutions. The FDMB2307NZ also provides excellent thermal performance, resulting in cooler system operation, further increasing efficiency.

The device’s 2 x 3mm² MicroFET™ package provides designers with one of the smallest MLP solutions available - 40 percent smaller than existing legacy solutions - saving significant board space in their design. RoHS-compliant, the device also provides HBM ESD protection >2kV.

The units are priced at US $0.46 in 1,000 quantity pieces with a delivery of 8-12 weeks ARO.