PF1307-03 S1F77600 Series Power Supply IC DESCRIPTION S1F77600 series comprises high-accuracy, low-consumption low-voltage detectors which work at a low voltage. Output is guaranteed until supply voltage reaches 0V. They are ICs used to prevent liquid leakage of a dry cell by detecting the voltage drop of power supply of two cells connected in series. The internal circuits of the ICs consist of reference voltage circuits, comparators, resistances for detecting voltage, hysteresis circuits, output-securing circuits (forced output Hi-Z) and output transistors. Detection voltage is of non-adjustment type, fixed inside the IC at high accuracy. Output form is selectable from P-ch open drain and N-ch open drain. The packages are of SOT89-3pin type. These ICs are best suited to the dry-cell liquid leakage prevention/protection circuit of a portable product which uses power supply of two dry cells connected in series. LINEUP Product name S1F77600Y0A0 S1F77601Y0A0 S1F77602Y0A0 S1F77603Y0A0 Output form N-ch open drain P-ch open drain N-ch open drain P-ch open drain Detection voltage 1.2V 1.2V 2.4V 2.4V Hysteresis width 0.8V 0.8V 0.3V 0.3V FEATURES Current consumption S1F77600/77601 S1F77602/77603 Operational voltage Forced output Hi-Z Detection voltage S1F77600/77601 S1F77602/77603 Accuracy of detection voltage S1F77600/77601 S1F77602/77603 Detection temperature characteristics Hysteresis width S1F77600/77601 S1F77602/77603 Release voltage Accuracy of release voltage S1F77600/77601 S1F77602/77603 Detection temperature characteristics Operational temperature Output form Shipping forms Rev.1.0 : Max. 5.0A (VDD = 3.0V, P-ch open drain) : Max. 5.5A (VDD = 3.0V, N-ch open drain) : 0.8V to 5.5V : 0.0V to 1.0V : 1.2V to 1.6V (0.05V step: mask option) : 1.7V to 2.5V (0.1V step: mask option) : 3.5% (Ta=25C) : 2.0% (Ta=25C) : -320ppm/C : 0.20V to 1.00V (0.05V step: mask option) : 0.12V to 0.30V (0.02V step: mask option) : Detection voltage + hysteresis width : 2.5% (Ta=25C) : 2.0% (Ta=25C) : -260ppm/C : -30C to +85C : P-ch open drain, N-ch open drain (mask option) : SOT89-3pin, SON-6pin (TBD) SEIKO EPSON CORPORATION S1F77600 Series TIMING CHART When P-ch open drain output Release Voltage (+VDE T) Supply Voltage (VDD ) HYS Width Detection Voltage (-VDET) Lower Limit of Operational Voltage VSS Release Voltage (+VDE T) Output P-ch Open Drain (OUT) Detection Voltage (-VDET) Lower Limit of Operational Voltage VSS Hi-Z When N-ch open drain output Release Voltage (+VDE T) Supply Voltage (VDD ) HYS Width Detection Voltage (-VDET) Lower Limit of Operational Voltage VSS Release Voltage (+VDE T) Output N-ch Open Drain (OUT) Detection Voltage (-VDET) Lower Limit of Operational Voltage VSS 2 EPSON Hi-Z Rev.1.0 S1F77600 Series PIN DESCRIPTION Pin name OUT VSS VDD I/O O I I PIN No. 1 2 3 Function Detected-voltage output pin (selectable from P-ch/N-ch open drain) Input voltage pin (-) Input voltage pin (+) BLOCK DIAGRAM VREF Output Securing Circuit VDD + - Forced Output Hi-Z if Supply Voltage is 1.0V VSS (Note) Rev.1.0 OUT P-ch open drain output N-ch open drain output (Mask option allows you to select either output form.) EPSON 3 S1F77600 Series NOTICE: No part of this material may be reproduced or duplicated in any form or by any means without the written permission of Seiko Epson. Seiko Epson reserves the right to make changes to this material without notice. Seiko Epson does not assume any liability of any kind arising out of any inaccuracies contained in this material or due to its application or use in any product or circuit and, further, there is no representation that this material is applicable to products requiring high level reliability, such as, medical products. Moreover, no license to any intellectual property rights is granted by implication or otherwise, and there is no representation or warranty that anything made in accordance with this material will be free from any patent or copyright infringement of a third party. This material or portions thereof may contain technology or the subject relating to strategic products under the control of the Foreign Exchange and Foreign Trade Control Law of Japan and may require an export license from the Ministry of International Trade and Industry or other approval from anther government agency. All other product names mentioned herein are trademarks and/or registered trademarks of their respective companies. (c)Seiko Epson Corporation 2003, All rights reserved. SEIKO EPSON CORPORATION ELECTRONIC DEVICES MARKETING DIVISION EPSON Electronic devices Website http://www.epsondevice.com/ IC Marketing & Engineering Group ED International Marketing Department 421-8 Hino, Hino-shi, Tokyo 191-8501, JAPAN Phone: 042-587-5814 FAX: 042-587-5117 First issue January, 2003 Printed June, 2003 in Japan H Rev.1.0