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R3117N351C Dataheets PDF



Part Number R3117N351C
Manufacturers RICOH
Logo RICOH
Description LOW VOLTAGE DETECTOR
Datasheet R3117N351C DatasheetR3117N351C Datasheet (PDF)

R3117x SERIES LOW VOLTAGE DETECTOR with SENSE pin NO.EA-186-080617 OUTLINE 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 .

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R3117x SERIES LOW VOLTAGE DETECTOR with SENSE pin NO.EA-186-080617 OUTLINE 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. FEATURES∗ • Supply Current ......................................................................Typ. 0.29µA (VDD=6.0V) Consumption current through SENSE pin is not included. • Range of Operating Voltage..................................................1.0V to 6.0V (-40°C <= Topt <= 105°C) • Detector Threshold Range....................................................Stepwise setting with a step of 0.1V in the range of 0.7V to 5.0V • 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 ..............................................................................SOT-23-5, DFN(PLP)1010-4, SC-88A ∗ Topt=25°C, unless otherwise noted. APPLICATIONS • CPU and Logic Circuit Reset • Battery Checker • Window Comparator • Wave Shaping Circuit • Battery Back-up Circuit • Power Failure Detector 1 R3117x BLOCK DIAGRAMS Nch Open Drain Output (R3117xxxxA) SENSE CMOS Output (R3117xxxxC) SENSE VDD DOUT VDD DOUT Vref Vref GND GND SELECTION GUIDE The package type, the detector threshold, the output type and the taping type for the ICs can be selected at the users’ request. The selection can be made with designating the part number as shown below; R3117xxxxx-xx-x ← Part Number ↑ ↑ ↑↑ ↑ ↑ a b a' c d e Code a, a' b c d e Contents Designation of Package Type; DFN(PLP)1010-4 : R3117Kxx1x-xx-x SOT-23-5 : R3117Nxx1x-xx-x SC-88A : R3117Qxx2x-xx-x Setting Detector Threshold (-VDET); Stepwise setting with a step of 0.1V in the range of 0.7V to 5.0V is possible. Designation of Output Type; A: Nch Open Drain C: CMOS Designation of Taping Type ; TR (Refer to Taping Specifications; TR type is the standard direction.) Designation of Composition of pin plating -F : Lead free solder plating (SOT-23-5, SC-88A) None: Au plating (DFN(PLP)1010-4) 2 PIN CONFIGURATIONS • DFN(PL.


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