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Cost-Effective Bluetooth IC for Smart Devices

21.03.2014

Toshiba Electronics Europe (TEE) has launched Bluetooth integrated circuits (ICs) that support Bluetooth Low Energy (BLE)1. The new IC TC35667FTG will find its application in a variety of wearable medical smart devices and sensors, as well as smartphone accessories, remote controls and toys.

The number of Bluetooth Smart2 devices supporting Bluetooth LE in various applications is growing rapidly. The new IC uses an original low-power design and a high-efficiency DC/DC converter to reduce peak current consumption to 6mA or less and sleep mode consumption to 100nA or less.

In addition, the TC35667FTG includes an ARM processor that allows loading and executing user programs stored in EEPROM memory. The processor supports application customization and eliminates the need for an external microcontroller. The receiver has a sensitivity of -91 dBm, and the transmitter output power can be varied from 0 to -20 dBm in 4 dB steps.

The 40x6mm QFN6 low power IC package with 0,5mm pin leads enables Bluetooth LE technology to be used in smaller devices, helping to extend battery life. The IS supports server and client functions defined using the Generic Attribute Profile (GATT).

Toshiba plans to expand its line of devices to support the use of Bluetooth Smart devices in cars.

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New controller for flyback converters 24.07.2008

STM has announced a new controller for high quality high power flyback converters that can operate in two modes: fixed frequency or quasi-resonant mode. At low load in both modes, the chip enters a controlled burst-mode state with a low frequency (several hundred Hertz) and a constant maximum current.

This is done in order to minimize the overall power requirements, in accordance with the world's energy-saving recommendations. Small controller current consumption (less than 3mA), built-in non-dissipative trigger circuit, are STM developments that improve chip utilization efficiency. The chip is available in two versions L6566A and L6566B.

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