■ OUTLINE The R3111 Series are voltage detector ICs with high detector threshold accuracy and ultra-low supply current by CMOS process, which can be operated at an extremely low voltage and is used for system reset as an example. Each of these ICs consists of a voltage reference unit, a comparator, resistors for detector threshold setting, an output driver and a hysteresis circuit. The detector threshold is fixed with high accuracy internally and does not require any adjustment. Two output types, Nch open drain type and CMOS type are available. ■ FEATURES ● Ultra-low Supply Current...............................................TYP.0.8µA (VDD=1.5V) ● Wide Range of Operating Voltage....................................... 0.7 to 10.0V(Topt=25°C) ● Detector Threshold....................... Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V is possible. ● High Accuracy Detector Threshold...................................... ±2.0% ● Low Temperature-Drift Coefficient of Detector Threshold............ TYP. ±100ppm/°C ● Two Output Types .......................................... Nch Open Drain and CMOS ● Four Types of Packages...... TO-92, SOT-89(Mini-power Mold), SOT-23-5 (Mini mold), SC-82AB ■ APPLICATIONS ● CPU and Logic Circuit Reset ● Battery Checker ● Window Comparator ● Wave Shaping Circuit ● Battery Back-up Circuit ● Power Failure Detector
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