Torex Semiconductor, Ltd. has developed the XC6190 series of push button reboot controllers, which are used for system reboot by means of a signal input from external buttons such as on a wearable device. With an operating voltage range of 1.75- to 6-Vdc, these controllers feature a low quiescent current in the standby state of 0.01µA (typical). On internally-fixed reboot delay time products, external components such as capacitors and resistors are not necessary, and this allows a smaller mounting area. Target applications include: Wearable devices, Portable music players, Portable game consoles, Wireless headphones and headsets, Mobile communication devices, Smartphones and feature phones, and various applications equipped with buttons.
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The XC6190 series are timer reset ICs that 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.
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