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SmartBond SoC lengthens battery life

23 May 2013  | Julien Happich

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Dialogue Semiconductor has recently staked a claim to the world's lowest power and smallest Bluetooth Smart System-on-Chip (SoC). The SmartBond is touted to more than double the battery life of an app-enabled smartphone accessory or computer peripheral.

Designed to connect keyboards, mice and remote controls wirelessly to tablets, laptops or Smart TVs, the part number DA14580 will enable consumers to use innovative apps on their smartphones and tablets connected with watches, wristbands and smart tags, to "self-track" their health and fitness levels and locate lost keys.

According to Dialog, SmartBond's unique low power architecture draws just 3.8mA at transmission and reception, 50 per cent less than other Bluetooth Smart solutions on the market, with a deep sleep current of under 600nA. This means a 225mAh coin-cell battery in a product sending 20B of data per second would last 4 years and 5 months in comparison to just 2 years with previous generations of Bluetooth Smart technology.

The DA14580 features a power management block, including a DC-DC converter and all the necessary LDOs, reducing the need for external components and the overall bill of materials. By precisely switching on and off power delivery to each block on the chip, Dialogue is able to reduce energy consumption to a bare minimum.

SmartBond works at much lower voltages than was previously possible, down to 0.9V, enabling the use of just one alkaline or NiMH cell AA battery instead of two in computer or smart TV peripherals. The DA14580 comes in three different form factors, the smallest Wafer-Level Chip-Scale package measures 2.5x2.5x0.5mm.

Datasheet for the DA14580 can be downloaded here.

Visit Dialogue Semiconductor at www.dialogue-semiconductor.com

- Julien Happich
  EDN




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