R3116x Series

0.8% Low Voltage Detector with Output Delay for Automotive Applications

Outline

Data Sheet
Data Sheet

The R3116x is a CMOS-based voltage detector IC 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.
This IC consists of a voltage reference unit, a comparator, resistors for detector threshold setting, an output driver, a hysteresis circuit and an output delay circuit. The detector threshold is internally fixed with high accuracy (±12mV: -VDET < 1.5V, ±0.8%: -VDET ≥ 1.5V) and does not require any adjustment. The release output delay time is adjustable by the capacitor connected to the CD pin.
Two output types, Nch open drain type and CMOS type are available.
In addition to SOT-23-5 package, an ultra-small DFN1212-4 package are also available for high-density mounting.

Features

Operating Voltage Range (Maximum Rating) 0.5V to 6.0V (7.0V)
Operating Temperature Range −40°C to 105°C
Supply Current Typ. 0.35µA (-VDET=1.5V, VDD=-VDET+1V)
Detector Threshold Range 0.7V to 5.0V (0.1V steps)
Detector Threshold Accuracy ±0.8% (-VDET >=1.5V)
Temperature-Drift Coefficient of Detector Threshold Typ. ±30ppm/°C
Built-in Output Delay Circuit Typ. 100ms with an external capacitor: 0.022µF
Output Delay Time Accuracy ±15% (-VDET >=1.5V)
Output Types Nch Open Drain and CMOS
Packages DFN1212-4, SOT-23-5

Applications

  • Voltage monitoring for car accessories including car audios, car navigation systems, ETC systems.

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Data Sheet Package Quality Assurance Data Suffix Composition & Content*1
R3116x Series DFN1212-4 to be prepared -AE Ni-Pd-Au (-)
SOT-23-5 to be prepared -AE Sn (Sn: 100%)
  • *1The composition of the product cannot be specified.

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Distributors

Ricoh semiconductor products are available at those dealers.

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