R3117x Series Voltage Detector with SENSE pin The R3117x Series are CMOS-based voltage detector ICs. Since R3117x has a SENSE pin for monitoring voltage separately from the power pin, its reset signal does not become unstable as long as power supply is secured and the "L" can be maintained. In addition to SOT-23-5 and SC-88A packages, a 1mm square DFN(PLP)1010-4 package is also available. ) These products are suitable for automotive applications too. Please refer to our "Car Electronics Products Catalog" or contact us. If the SENSE pin voltage of R3117xxx1A/C and R3117Qxx2A/C make the gradual curve by raising 0.5V/ms or less, it may cause noise when the output voltage is switched from low to high. Please use R3117xxx3A/C and R3117Qxx4A/C Series for new designs instead of these products to avoid the above problem. * R3117xxx3A/C and R3117Qxx4A/C Series may cause the malfunction (miss detection), in the case of its VDD pin voltage changes very rapidly. Please check the details in the datasheet. * FEATURES * Supply Current (ISS) ************************ Typ. 0.29A (VSENSE=-VDET x 1.1) * Operating Voltage Range (VDD) ****** 1.0V to 6.0V * Detector Threshold Range (-VDET) ****** 0.7V to 5.0V (internally fixed) * Reset Signal *********************************** "L" * Detector Threshold Accuracy ********* 1% (-VDET1.6V) * Temp. coeff. of Detector Threshold ***** Typ. 30ppm/C * Output Type *********************************** Nch. Open Drain and CMOS * Packages *************************************** DFN(PLP)1010-4, SC-88A, SOT-23-5 (The above shows specification at Topt=25C. Design assurance value at -40C Topt 85C is also available. For details, please refer to the datasheet.) BLOCK DIAGRAMS R3117xxxxA R3117xxxxC (Nch. open drain output) (CMOS output) SENSE SENSE VDD DOUT VDD DOUT Vref Vref GND GND SELECTION GUIDES Halogen Free Package TIMING CHART Supply Voltage Q'ty per Reel Part No. R3117K.xx.1. -TR DFN(PLP)1010-4 10,000 pcs R3117K.xx.3. -TR R3117Q.xx.2. -TR-FE SC-88A 3,000 pcs R3117Q.xx.4. -TR-FE R3117N.xx.1. -TR-FE SOT-23-5 3,000 pcs R3117N.xx.3. -TR-FE (VDD) Minimum Operating VDDL Voltage Detector Threshold Hysteresis Released Voltage +VDET Detector Threshold -VDET Detector Threshold Hysteresis SENSE Pin Voltage (VSENSE) GND Pull-up Voltage Supply Voltage (VDD) Output Voltage (VOUT) .xx. : Specify the detector threshold within the range of 0.7V (.07.) to 5.0V (.50.) in 0.1V steps. .. : Select the output type from (.A.) Nch. open drain or (.C.) CMOS. GND tPHL R3117xxxxA tPLH tPHL R3117xxxxC tPLH PACKAGES DFN(PLP)1010-4 Top View 4 SC-88A 5 Bottom View 3 3 SOT-23-5 4 5 4 4 1 2 1 2 3 4 2 1 DOUT SENSE GND VDD 1 1 2 3 4 5 2 1 3 VDD NC GND SENSE DOUT 1 2 3 4 5 2 3 DOUT VDD GND NC SENSE ) The tab is substrate level (GND). APPLICATIONS * Microcontroller and logic circuit reset * Battery checker * Window comparator No.EK-186-111001 * 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. Therefore, before deciding to use the products, please refer to Ricoh sales representatives for the latest information thereon. 2. The materials in this document may not be copied or otherwise reproduced in whole or in part without prior written consent of Ricoh. 3. 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