Ultra Start 16xx Manual de usuario descargar pdf (Pagina 13)

MEB/0404

BOR Is Very Important

•MSP430 BOR is always-on and

zero

power

Battery

Insertion

VCC/BOR

VSS

MCU

Brown-out

The MSP430 introduced the industry’s first ultra-low power BOR protection feature.

•The brown-out reset (BOR) function forces a MCU into reset both on power-up when VCC rises

and when VCC falls below normal operating range, but not fully to ground.

•While BOR protection is not unique, the MSP430 features a unique low-power implementation

that is in the nA range. This makes BOR practical for all applications including those that are

extremely low power. The MSP430 BOR function is so low power that it is always-on and active

even in all low-power modes. This ensures the most reliable performance possible.

•Competitor’s BOR protection is in the 10-50uA range, which is not usable in ultra-low power

battery powered applications. This leaves the application vulnerable to BOR conditions.

•The screen shot shows a typical battery insertion and real example of brownout.

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Ultra Start 16xx Manual de usuario Pagina 13