â 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.
â FEATURES
â Ultra-low Supply Current...............................................TYP.0.8µA (VDD=1.5V)
â Wide Range of Operating Voltage....................................... 0.7 to 10.0V(Topt=25°C)
â Detector Threshold....................... Stepwise setting with a step of 0.1V in the range of
0.9V to 6.0V is possible.
â High Accuracy Detector Threshold...................................... ±2.0%
â Low Temperature-Drift Coefficient of Detector Threshold............ TYP. ±100ppm/°C
â Two Output Types .......................................... Nch Open Drain and CMOS
â Four Types of Packages...... TO-92, SOT-89(Mini-power Mold), SOT-23-5 (Mini mold), SC-82AB
â APPLICATIONS
â CPU and Logic Circuit Reset
â Battery Checker
â Window Comparator
â Wave Shaping Circuit
â Battery Back-up Circuit
â Power Failure Detector
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