HomeIndustry news Chip-Scale Bi-directional MOSFET Enables Higher-Capacity Li Batteries

Chip-Scale Bi-directional MOSFET Enables Higher-Capacity Li Batteries

December 19, 2014 By admin Comments are Off , , , ,

The DMN2023UCB4 bi-directional MOSFET from Diodes Incorporatedprovides superior protection for charging 1- and 2-cell lithium batteries. Its low on-state resistance reduces power loss while its thin chip-scale packaging allows designers to use the space saved to increase battery capacity. Target end-markets include smartphones, tablets, cameras, portable media players, and similar consumer products where size, weight and battery life are all key performance factors.

Designed to minimize on-state resistance for lower power loss, the DMN2023UCB4 delivers an RDS(on) of less than 26mOhm. In addition, its dual N-channel common-drain configuration particularly suits the charging circuits required for 1- and 2-cell lithium batteries, which commonly use a low-side battery switch. For applications requiring a high-side connection Diodes also offers the DMP2100UCB9, which provides a dual P-channel common-source MOSFET design.

The above features coupled with a chip-scale package footprint of just 1.8mm x 1.8mm and a thickness of <0.4mm, make this new generation bi-directional MOSFET suited for battery management, load switch and battery protection applications where smaller form factors are important. Other features include a gate threshold voltage of less than 1V, which is important to fully enhance the channel under low voltage operation, and built-in gate protection against electrostatic discharge (ESD) voltages of >2kV. In 10k piece quantities, the DMN2023UCB4 and DMP2100UCB9 are priced respectively at $0.25 USD and $0.35 USD each.
 
source: http://www.powerpulse.net/story.php?storyID=31295

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