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Torex develops push button reboot controllers for wearables

20 Jan 2015

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Torex Semiconductor Ltd has released the XC6190 series of push button reboot controllers, which are geared for system reboot by means of a signal input from external buttons. The controllers are suited for wearable devices, portable music players, game consoles, smartphones and wireless headphones.

The timer reset ICs supply a reboot signal to the system when "L" voltage is input into both the SW1 pin and the SW2 pin for the required time (reboot delay time) using two switches (physical buttons).?

On the A type, the reboot delay time (TDL) can be set within the interval 1s to 20s by changing the external resistance RT.?On the B type, TDL is fixed internally, and is 12.5s when the TS pin is at "H" level or 7.5s when the TS pin is at "L" level.?The reboot signal (TRSTB) is output for 0.4s (TYP.), and then automatically returns to the regular state.

USPN6 package

The quiescent current in the standby state is 0.01μA (TYP.), which contributes to a longer battery drive time. On internally fixed reboot delay time products, external components such as capacitors and resistors are not necessary.

USPN-6B01 package

Housed in USPN-6 and USPN-6B01 packages, the devices reduce the mounting space. UVLO is provided as a protective function to prevent malfunctioning of the ICs.

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