描述 Description

TC1270 and TC1271 are cost-effective system supervisor circuits designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. A manual reset input is provided to override the reset monitor, and is suitable for use as a push-button reset. No external components are required. The reset output is driven active within 20μsec (4μsec for F version) of VCC falling through the reset voltage threshold. RESET is maintained active for a minimum of 140msec after VCC rises above the reset threshold. The TC1271 has an active-high RESET output while the TC1270 has an active-low RESET output. The output of the TC1270 is valid down to VCC = 1V. Both devices are available in a 4-Pin SOT-143 package. The TC1270/1 are optimized to reject fast transient glitches on the VCC line. Low supply current of 7μA (VCC = 3.3V) makes these devices suitable for battery powered applications.

特性 Features

?Precision VCC Monitor for 1.8V, 2.7V, 3.0V, 3.3V, 5.0V ?Nominal Supplies ?Manual Reset Input ?140msec Minimum RESET???RESET Output Duration ?RESET Output Valid to VCC = 1.0V (TC1270)???VCC Transient Immunity ?No External Components ?Replacement for MAX811/812 and Offers a Lower Threshold Voltage Option

簡介

TC1270屬于集成電路（IC）的監(jiān)控器。由制造生產(chǎn)的TC1270監(jiān)控器PMIC 監(jiān)控器用于監(jiān)視和/或控制電路中的電壓軌，能夠連接微控制器以維持一定的功率限值。監(jiān)控器類型包括電池備用電路、監(jiān)控器、多電壓監(jiān)控器、電源監(jiān)控器、穩(wěn)壓器/監(jiān)控器、復(fù)位計(jì)時(shí)器、定序器、簡單復(fù)位/上電復(fù)位、智能開/關(guān)控制器、系統(tǒng)管理器、電壓檢測器和看門狗電路。