High-precision Battery Protection IC for Smartphones And Portables

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Diodes Incorporated introduced a solution that provides protection for single-cell lithium-ion (Li+) or lithium-polymer battery packs. The AP9101C can turn off external MOSFET switches when detecting over-charge voltage, over-discharge voltage, over-charge current, over-discharge current and more. This capability is particularly important in consumer markets for products such as smart phones, cameras and similar portable devices.

High-precision voltage detection over the full -40°C to +85°C temperature range enhances maximum cell lifetime and safe operation during charge and discharge cycles. The AP9101C also features a built-in time delay circuit that allows the various protection functions to be implemented with fewer components and requiring no external capacitors.

The new device provides design flexibility with or without power-down mode and can be quickly customised to protect different cell specifications in various applications. A low quiescent current of 3μA in normal mode, and just 0.1μA when powered down, delivers useful power saving benefits.

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The AP9101C is offered with standard SOT25 and SOT26 package options.

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