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Torex's push button reboot controllers target wearables

Posted: 20 Jan 2015 ?? ?Print Version ?Bookmark and Share

Keywords:push button reboot controllers? timer reset ICs? UVLO?

Torex Semiconductor Ltd has rolled out the XC6190 series of push button reboot controllers aimed at wearables, portable music players, game consoles, smartphones and wireless headphones. The controllers are used for system reboot by means of a signal input from external buttons.

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 0.01A (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 IC.

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