RNA51953B Datasheet | Renesas

Description RNA51953A,B are semiconductor integrated circuits designed for detecting supply voltage and resetting all types of logic circuits such as CPUs. They include a built-in delay circuit to provide the desired retardation time simply by adding an external capacitor. They fined extensive applications, including battery checking circuit, level detecting circuit and waveform shaping circuit. Features - Few external parts - Large delay time with a capacitor of small capacitance (td ≈ 100 ms, at 0.33 µF) - Low threshold operating voltage (Supply voltage to keep low-state at low supply voltage): 0.6 V (Typ) at RL = 22 kΩ - Wide supply voltage range: 2 V to 17 V - Wide application range - Ordering Information Part Name RNA51953AFPH0 RNA51953BFPH0 Package Type SOP-8 pin SOP-8 pin Package Code PRSP0008DE-C PRSP0008DE-C Package Abbreviation FP FP Taping Abbreviation (Quantity) H (2,500 pcs / Reel) H (2,500 pcs / Reel) Surface Treatment 0 (Ni/Pd/Au) 0 (Ni/Pd/Au) Application - Reset circuit of Pch, Nch, CMOS, microputer, CPU and MCU, Reset of logic circuit, Battery check circuit, switching circuit back-up voltage, level detecting circuit, waveform shaping circuit, delay waveform generating circuit, DC/DC converter, over voltage protection circuit Remended Operating Condition - Supply voltage range: 2 V to 17 V Outline and Article Indication - RNA51953A, B Type No. R953A YMWC CCC SOP-8 R953B YMWC CCC Pin No.1 Trace Code Lot No. Y : Year Code (the last digit of year) M : Month Code W : Week Code C : Control Code REJ03D0911-0100 Rev.1.00 Oct 10, 2008 Page 1 of 9 RNA51953A,B Pin Arrangement RNA51953AFP/BFP .. NC 1 NC 2 NC 3 GND 4 (Top view) NC: No Connection 8 NC 7 Power-supply 6 Output 5 Delay capacitor Outline: PRSP0008DE-C Block Diagram RNA51953A, B Powersupply A: Built-in Load B: Open Collector R1 - R2 + 1.25V 5µA Typ - 25µA Typ Output Delay capacitor Operating...