R3117xxx1/2 Series

LOW VOLTAGE DETECTOR with SENSE pin

Notice
If the SENSE pin voltage of R3117xxx1A/C and R3117Qxx2A/C make the gradual curve by rasing 0.5V/ms or less, it may cause noise when the output voltage is switched from low to high.Please use R3117xxx3A/C and R3117Qxx4A/C Series for new designs instead of these products to avoid the above problem.
Data Sheet / Flyer
Data Sheet * Flyer

The R3117x 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.
The tolerance of the detector threshold is ±15mV (-VDET <= 1.5V) or ±1.0% (1.5V< -VDET). Since the sense pin is separated from the VDD pin of the IC, therefore, even if the sense pin voltage becomes to 0V, the output voltage keeps its "L" level.
Two output types, Nch open drain type and CMOS type are available.
Three types of packages, SOT-23-5, SC-88A, and DFN(PLP)1010-4 are available.

Supply Current Typ. 0.29μA (VDD=6.0V)
Consumption current through SENSE pin is not included.
Operating Voltage Range 1.0V to 6.0V (-40°C <= Topt <= 105°C)
Detector Threshold Range 0.7V to 5.0V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
Accuracy Detector Threshold ±1.0% (-VDET >= 1.6V), ±15mV (-VDET<1.6V)
Temperature-Drift Coefficient of Detector Threshold Typ. ±30ppm/°C
Output Types Nch Open Drain and CMOS
Packages DFN(PLP)1010-4, SC-88A, SOT-23-5
* Topt=25°C, unless otherwise noted.
  • 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
Data
R3117xxx1/2
Series
R3117x
Series
SC-88A R3117Qxx2x Reliability
SOT-23-5 R3117Nxx1x Reliability
DFN(PLP)1010-4 R3117Kxx1x Reliability

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