R3112x Series Low Input VD with Delay Function The R3112x Series are CMOS-based voltage detector ICs with the built-in output delay circuit, which can operate at low voltage. The delay time can be set with an external capacitor. FEATURES * Supply Current (ISS1) ***********************Typ. 0.5A (VDD=-VDET+1V, R3112x15x) * Operating Voltage Range (VDD) ******0.7V to 6.0V (Topt=25C) * Detector Threshold Range (-VDET)*****0.9V to 5.0V (internally fixed) * Output Delay *********************************Typ. 100ms delay set with a 0.022F external * Detector Threshold Accuracy ******* 2% * Temp. coeff. of Detector Threshold *** Typ. 100ppm/C * Two Output Types ************************** Nch. Open Drain and CMOS * Packages**************************************** SON1612-6, SC-82AB, capacitor SC-88A, SOT-23-5 * Reset Signal ***********************************"L" BLOCK DIAGRAMS R3112xxxxA R3112xxxxC (Nch. open drain output) (CMOS output) VDD OUT VDD RD RD OUT Vref Vref GND GND CD CD SELECTION GUIDES Package SON1612-6 SC-82AB SC-88A SOT-23-5 TIMING CHART Quantity per Reel 4,000 pcs 3,000 pcs 3,000 pcs 3,000 pcs Part No. R3112D.xx.1. -TR-F R3112Q.xx.1. -TR-F R3112Q.xx.2. -TR-F R3112N.xx.1. -TR-F .xx. : Specify the detector threshold within the range 0.9V (.09.) to 5.0V (.50.) in 0.1V steps. . : Select the output type from (.A.) Nch. open drain or (.C.) CMOS. Release Voltage +VDET Supply Voltage Detector Threshold -VDET (VDD ) Minimum Operating VDDL Voltage GND Hysteresis Hysteresis Pull-up Voltage Output Voltage (VOUT) GND tPHL tD tPHL R3112xxxxA PACKAGES (Top View) SON1612-6 6 5 4 SC-82AB 4 3 tD R3112xxxxC HOW TO DETERMINE DELAY TIME SC-88A 5 SOT-23-5 4 5 4 Letting the capacity of an external capacitor CD (F), the delay time (tD) is found from the following equation: tD=0.69 x 6.5 x 10 x CD (s) 6 1 1 1 2 3 4 5 6 2 3 OUT GND CD NC GND VDD 1 1 2 3 4 2 VDD GND CD OUT 1 1 2 3 4 5 2 2 3 3 VDD NC GND CD OUT 1 2 3 4 5 OUT VDD GND NC CD APPLICATIONS * Microcontroller and logic circuit reset * Battery checker * Window comparator No.EK-091-091101 * Wave shaping circuit * Battery back-up circuit * Power failure detector CMOS Voltage Detector 1. The products and the product specifications described in this document are subject to change or discontinuation of production without notice for reasons such as improvement. 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