R3118N Series AEC-Q100 Compliant Low VD with Individual SENSE Pin and Delay Function for Automotive Applications No. EC-242-210412 OUTLINE The R3118x is a voltage detector IC with individual sense pin, high detector threshold accuracy and delay time, 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 the IC consists of a voltage reference unit, a hysteresis comparator, resistors net for detector threshold setting, an output driver transistor, and a delay circuit. V supply pin for the IC and voltage supervisory sense pin are individual, therefore the output pin can keep DD level even if the sense pin voltage is going down to 0 V, or there is no indefinite range for the sense pin. Since a delay circuit is built-in, by connecting an external capacitor, any output delay time can be set. In the R3118x, detector released delay time can be set, and detector delay time is not influenced by the external capacitor for the delay time. The detector threshold is fixed with high accuracy internally and does not require any adjustment. The tolerance of the detector threshold is 22.5 mV (V < 1.6 V) or 1.5% (V 1.6 V). DET S DET S Minimum detector threshold voltage is 0.6 V, ultra-low voltage detector threshold can be set. Output delay time for the detector release can be set with high accuracy. The tolerance of the IC side is 30%. Two output types, Nch. open drain type and CMOS type are available. If the sense pin voltage becomes to equal or lower than the detector threshold voltage, the output voltage becomes, and if the sense pin voltage becomes to released voltage, the output voltage becomes after the set delay time. The R3118x supports SOT-23-5 package. (1) FEATURES Operating Voltage Range (Maximum Rating) .................. 1.0 V to 6.0 V (7.0 V) (2) .............................................................. Typ. 0.4 A (V +V , V = 6 V) Supply Current SENSE DET DD Operating Temperature Range ........................................ R3118Nxxxx-AE: 40C to 85C R3118Nxxxx-KE: 40C to 125C Detector Threshold Range 0.6 V to 5.0 V (0.1 V step) Accuracy Detector Threshold 1.5% (-VDET S 1.6 V), 22.5 mV (-VDET S < 1.6 V) Temperature-Drift Coefficient of Detector Threshold Typ. 30 ppm/C Accuracy Detector Released 30% Temperature-Drift Coefficient of Detector Released Typ. 0.16 ppm/C Output Types Nch Open Drain and CMOS Packages SOT-23-5 APPLICATIONS Voltage monitoring for electronic control units such as EV inverter and battery charge control unit (1) Ta = 25C, unless otherwise specified. (2) Consumption current through SENSE pin is not included. 1 R3118N No. EC-242-210412 SELECTION GUIDE The detector threshold and the output type for the IC can be selected at the users request. Selection Guide Product Name Package Quantity per Reel Pb Free Halogen Free R3118Nxx1-TR- E SOT-23-5 3,000 pcs Yes Yes xx : The detector threshold can be designated in the range from 0.6 V(06) to 5.0 V(50) in 0.1 V step. : Designation of Output Type (A) Nch Open Drain (C) CMOS : Quality Class Operating Temperature Range Test Temperature A 40C to 85C 25C, High K 40C to 125C Low, 25C, High BLOCK DIAGRAMS SENSE SENSE VDD VDD DOUT Delay Delay DOUT Circuit Circuit Vref VREF GND GND CD CD R3118xxxxA (Nch. Open Drain Output) R3118xxxxC (CMOS Output) Block Diagram Block Diagram 2