R3111x Series


Data Sheet / Flyer
Data Sheet * Flyer

The R3111x series are CMOS-based voltage detector ICs with high detector threshold accuracy and ultra-low supply current, 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.

Three output types, Nch open drain “L” type, Nch open drain “H” type and CMOS type are available.

The R3111x Series are operable at a lower voltage than that for the Rx5VL series, and can be driven by a single battery.

Seven types of packages, TO-92 (Discontinued), SOT-89, SOT-23-3, SOT-23-5, SC-82AB, SC-88A and SON1612-6 are available.

Supply Current Typ. 0.8µA (-VDET=1.5V, VDD=-VDET−0.1V)
Operating Voltage Range 0.7V to 10.0V (Topt=25°C)
Detector Threshold Range 0.9V to 6.0V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
Detector Threshold Accuracy ±2.0%
Temperature-Drift Coefficient of Detector Threshold Typ. ±100ppm/°C
Output Types Nch Open Drain "L", Nch Open Drain "H", and CMOS
Packages SON1612-6, SC-82AB, SC-88A, SOT-23-3, SOT-23-5, SOT-89, TO-92(Discontinued)
  • CPU and Logic Circuit Reset
  • Battery Checker
  • Window Comparator
  • Wave Shaping Circuit
  • Battery Back-up Circuit
  • Power Failure Detector

Data Sheet Flyer Package Info. Mark Info. Quality Assurance
R3111x Series
R3111x Series SOT-89 R3111H Reliability
SOT-23-5 R3111Nxx1x Reliability
SOT-23-3 R3111Nxx2x Reliability
SC-82AB R3111Qxx1 Reliability
SC-88A R3111Qxx2 Reliability
SON1612-6 R3111D Reliability

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