Microchip's TC54 series of voltage detectors are designed to supersede a variety of discrete comparator circuits and bipolar technology voltage detectors. These voltage detectors are especially suited for application in battery powered systems because of their extremely low 1µA operating current. Each part is laser programmed to the desired trip point voltage over the range of 1.1V to 6.0V in 100mV steps. For complete design flexibility, complementary or open-drain output versions are available. TC54 package options include surface mount SOT-23A and SOT-89 or through-hole TO-92 types. AN779 Using the Microchip TC54 Voltage Detector INTRODUCTION OPERATION Microchip's TC54 series of voltage detectors are designed to The TC54 equivalent circuit is shown in Figure 1. The internal supersede a variety of discrete comparator circuits and bipolar precision temperature-compensated reference and comparator technology voltage detectors. circuit consistently monitor VIN for an under-voltage condition. When such a condition occurs, the output is fo……