R3119x Series


Data Sheet / Flyer
Data Sheet * Flyer

R3119x Series are CMOS-based 36V input (absolute maximum ratings: 50V) voltage detector with high detector threshold accuracy and ultra-low supply current. Each of those ICs consists of a voltage reference unit, a comparator, resistors for detector threshold setting, an output driver and a hysteresis circuit.
There are two types: R3119xxxxA has the CD pin for setting the output delay time. R3119xxxxE has the SENSE pin.
The supply current of IC is only 3.3µA. The detector threshold is fixed in the IC and can be set with a step of 0.1V in the range of 2.3V to 12V. Detector threshold accuracy is 1.5%. The output type is Nch Open drain type.
The R3119x is offered in a small-size 6-pin DFN(PLP)1820-6 package in addition to a 5-pin SOT-23-5 package.

Supply Current Typ. 3.3μA
Operating Voltage Range 1.2V to 36.0V (CD pin type: R3119xxxxA)
2.1V to 6.0V (SENSE pin type: R3119xxxxE)
Operating Temperature Range −40°C to 105°C
Detector Threshold Range 2.3V to 12.0V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
Detector Threshold Accuracy ±1.5% (Topt=25°C)
Temperature-Drift Coefficient of Detector Threshold Typ. ±100ppm/°C
Output Delay Time (Power ON Reset Delay Time) Typ. 85ms (CD=0.01μF, CD pin type)
Output Delay Time Accuracy −50% to 80% (CD pin type: R3119xxxxA)
Output Type Nch Open Drain
Package SOT-23-5, DFN(PLP)1820-6
  • CPU and Logic Circuit Reset
  • Battery Checker
  • Battery Back-up Circuit
  • Power Failure Detector for Digital home appliances

Data Sheet Flyer Package Info. Mark Info. Quality Assurance
R3119x Series R3119N Series SOT-23-5 R3119N Reliability
DFN(PLP)1820-6 R3119K Reliability

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