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Industry’s Smallest Low-Power Controllers for Portables

Thu, 06/13/2013 - 5:34pm
MDT Staff

Texas Instruments Incorporated (TI) introduced two tiny push-button reset controllers for space-constrained, power-sensitive applications such as pedometers, fitness bands, cell phones and tablets. The dual-channel TPS3420 and TPS3421 feature low power consumption and a selectable reset time delay to improve system stability. For more information, samples and evaluation modules, visit www.ti.com/tps3420-pr.

Push-button reset controllers are required for portable electronics with an embedded battery. In practice, the user presses and holds one or two external keys for a specific period of time, which turns the portable device off or generates a reset. The TPS3420 and TPS3421 use a long input delay to provide the intended system reset and avoid reset from short push-button or key presses. This reset configuration enables differentiation between software interrupts and hard system resets. The timers are the first in a family of new push-button controllers from TI to ensure a hard and full system reset when needed to increase efficiency.

For more information, visit www.ti.com.

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