S-1004 Series BUILT-IN DELAY CIRCUIT (EXTERNAL DELAY TIME SETTING) VOLTAGE DETECTOR WITH SENSE PIN www.sii-ic.com Seiko Instruments Inc., 2014 Rev.2.1 00 The S-1004 Series is a high-accuracy voltage detector developed using CMOS technology. The detection voltage is fixed internally with an accuracy of 1.0% (V 2.2 V). It operates with current consumption of 500 nA typ. DET(S) Apart from the power supply pin, the detection voltage input pin (SENSE pin) is also prepared, so the output is stable even if the SENSE pin falls to 0 V. The release signal can be delayed by setting a capacitor externally, and the release delay time accuracy at Ta = +25C is 15%. Two output forms Nch open-drain output and CMOS output are available. Features Detection voltage: 1.0 V to 5.0 V (0.1 V step) Detection voltage accuracy: 1.0% (2.2 V V 5.0 V) DET(S) 22 mV (1.0 V V < 2.2 V) DET(S) Current consumption: 500 nA typ. Operation voltage range: 0.95 V to 10.0 V Hysteresis width: 5% 2% Release delay time accuracy: 15% (C = 4.7 nF, Ta = +25C) D Output form: Nch open-drain output (Active) CMOS output (Active) Operation temperature range: Ta = 40C to +85C Lead-free (Sn 100%), halogen-free Applications Power supply monitor for microcomputer and reset for CPU Constant voltage power supply monitor for TV, Blu-ray recorder and home appliance Power supply monitor for portable devices such as notebook PC, digital still camera and mobile phone Packages SOT-23-5 SNT-6A Seiko Instruments Inc. 1BUILT-IN DELAY CIRCUIT (EXTERNAL DELAY TIME SETTING) VOLTAGE DETECTOR WITH SENSE PIN S-1004 Series Rev.2.1 00 Block Diagrams 1. S-1004 Series NA / NB type (Nch open-drain output) SENSE Function Status Output logic Active VDD + Delay *1 *1 circuit OUT *1 V REF *1 VSS CD *1. Parasitic diode Figure 1 2. S-1004 Series CA / CB type (CMOS output) SENSE Function Status Output logic Active VDD *1 + Delay *1 circuit *1 OUT *1 V REF *1 VSS CD *1. Parasitic diode Figure 2 2 Seiko Instruments Inc.