S-801 Series ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR WITH DELAY CIRCUIT (INTERNAL DELAY TIME SETTING) www.sii-ic.com Seiko Instruments Inc., 2000-2010 Rev.4.0 00 The S-801 Series is a series of high-precision voltage detectors with a built-in delay time generator of fixed time developed using CMOS process. The detection voltage is fixed internally, with an accuracy of 2.0 %. Internal oscillator and counter timer can delay the release signal without external parts. Three delay times 50 ms, 100 ms, and 200 ms are available. Two output forms, Nch open-drain and CMOS output, are available. Features Ultra-low current consumption 1.3 A typ. (at V =3.5 V) DD High-precision detection voltage 2.0 % Hysteresis characteristics 60 mV typ. Detection voltage 2.2 V to 6.0 V (0.1 V step) Three delay times A type 50 ms typ. B type 100 ms typ. C type 200 ms typ. ON/OFF switching function of delay time (DS pin) Operating voltage range 0.95 V to 10.0 V Output forms Nch open-drain output (Active Low) CMOS output (Active Low) *1 Lead-free, Sn 100%, halogen-free *1. Refer to Product Name Structure for details. Applications Power monitor for portable equipment such as notebook computers, digital still cameras, PDA, and cellular phones. Constant voltage power monitor for cameras, video equipment and communication devices. Power monitor for microcomputers and reset for CPUs. Packages SOT-23-5 SNT-4A Seiko Instruments Inc. 1 ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR WITH DELAY CIRCUIT (INTERNAL DELAY TIME SETTING) S-801 Series Rev.4.0 00 Block Diagrams 1. Nch Open-drain Output Products VDD Delay circuit + Oscillator OUT counter *1 *1 timer *1 V REF VSS DS *1. Parasitic diode Figure 1 2. CMOS Output Products VDD *1 Delay circuit + OUT Oscillator counter *1 timer *1 *1 V REF VSS DS *1. Parasitic diode Figure 2 2 Seiko Instruments Inc.