MOSFET enhances next-gen smartphone battery, says MagnaChip

In response to demand for extended life and increased protection for batteries in high-end LTE and 5G smartphones, MagnaChip has introduced the reduced chip size low-Rss(on) low voltage (LV) MOSFET for smartphone battery protection circuit modules).

According to MagnaChip, 5G phones, in particular, need longer-lasting batteries with higher endurance than previous models to process the massive amounts of data with extremely fast download and upload capabilities. Inserted in the battery PCMs in LTE or 5G phones, the MOSFET prevents over-voltage and over-current of the batteries.

Rss(on) is 20 per cent lower than previous versions, while retaining the same chip size. It prolongs the life of smartphone batteries by decreasing current loss and improving heat dissipation. This lower Rss(on) also enables higher-power density than previous versions to prevent over-heating of the battery during a quick charge. PCM functionality is also enhanced by an electrostatic discharge (ESD) protection diode which has been added.  This diode mitigates ESDs of up to 2kV to strengthen circuit protection and prevents damage to other smartphone components.

MagnaChip has also reduced the chip size by 10 per cent (as compared to other LV MOSFETs currently in its portfolio). With this reduction in size, wafer level chip scale packaging (WLCSP) is possible, confirms MagnaChip.

MagnaChip Semiconductor designs  and manufactures analogue and mixed-signal semiconductors for communications, IoT, consumer, industrial and automotive applications.  The company’s Standard Products Group and Foundry Services Group provide a broad range of standard products and manufacturing services to customers worldwide.  MagnaChip owns a portfolio of approximately 3,000 registered patents and pending applications.

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