■ OUTLINE
The R3112 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, resistor net for detector threshold setting, an output driver, a hysteresis circuit, and an output delay 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.
Two types of packages, SOT-23-5 and ultra small SC-82AB can be selected so that high density mounting on boards is possible.

■ FEATURES
● Built-in Output Delay Circuit• • • • • • • • • • •TYP. 100ms with an external capacitor: 0.022µF
● Ultra-low Supply Current• • • • • • • • • • •TYP. 1.0µA (VDD=3.5V)
● Wide Range of Operating Voltage • • • • • •0.7∼6.0V(Topt=25°C)
● Detector Threshold • • • • • • • • •Stepwise setting with a step of 0.1V in the range of 0.9V to 5.0V 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
● Two Types of Packages • • • • • • • • • • 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