The TC54 Series are CMOS voltage detectors, suited especially for battery-powered applications because of their extremely low 1uA operating current and small surface-mount packaging. Each part is laser trimmed to the desired threshold voltage which can be specified from 1.1V to 6.0V,for a 2% tolerance. The device includes a comparator, low-current high-precision reference, laser-trimmeddivider,hysteresiscircuit and output driver. The TC54 is available with either an open-drain or complementary output stage. In operation, the TC54's output (VOUT) remains in the logic HIGH state as long as VIN is greater than the specified threshold voltage (V – DET).When VIN falls below V – DET, the output is driven to a logic LOW. VOUT remains LOW until VIN rises above V – DET by an amount VHYST, whereupon it resets to a logic HIGH.

  Precise Detection Thresholds..Standard ± 2.0%

  Low Current Drain ...............................Typ. 1uA

  Wide Detection Range ..........................1.1V to 6.0V

  Wide Operating Voltage Range ................0.7V to 10V