描述 Description

This monolithic integrated circuit is an analog latch device with digital reset.? It was specifically designed to provide pulse-by-pulse current limiting for switch-mode power supply systems, but many other applications are also feasible.? Its function is to provide a latching switch action upon sensing an input threshold voltage, with reset accomplished by an external clock signal.? This device can be interfaced directly with many kinds of pulse width modulating control IC's, including the SG1524, SG1525A, and SG1527A.The input threshold for the latch circuit is 100mV, which can be referenced either to ground or to a wide-ranging positive voltage.? There are high and low-going output signals available, and both the supply voltage and clock signal can be taken directly from an associated PWM control chip.With delays in the range of 200 nanoseconds, this latch circuit is ideal for fast reaction sensing to provide overall current limiting, short circuit protection, or transformer saturation control.

簡介

SG3549M屬于集成電路（IC）的監(jiān)控器。由制造生產的SG3549M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、復位計時器、定序器、簡單復位/上電復位、智能開/關控制器、系統(tǒng)管理器、電壓檢測器和看門狗電路。