RS809-2.93YSF3

RS809 Supply Voltage Supervisor with Reset Circuits 1 FEATURES 3 DESCRIPTIONS • • Operating Voltage Range: 1.0V to 5.5V Low Power Consumption: 40µA (Max) • Precision Supply-Voltage Monitor: 2.63V, 2.93V, 3.08V, 4.00V, 4.65V • Guaranteed 𝐑𝐄𝐒𝐄𝐓 Valid at VCC= 1.0V • 200ms Reset Pulse Width • • Voltage Monitor for Power-Fail or LowBattery Warning Operating Temperature Range: -40°C to +125°C ̅̅̅̅̅̅̅̅̅ Output Push-pull, 𝐑𝐄𝐒𝐄𝐓 • Available in Green Package: SOT23 • The RS809 microprocessor (µP) supervisory circuits reduce the complexity and number of components required to monitor power-supply and battery function in µP systems. This device significantly improves system reliability and accuracy compared to separate ICs or discrete components. These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 200ms after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The RS809 have push-pull outputs. The RS809 have an active-low RESET output. The reset comparator is designed to ignore fast transients on VCC, and the outputs are guaranteed to be in the correct logic state for VCC down to 1.0V. 2 APPLICATIONS • • Computers SOC , DSP or Micro controllers • Embedded Systems • Industrial Equipment • Intelligent Instruments • • Critical µP Power Monitoring Wireless Communications Systems Low supply current makes the RS809 ideal for use in portable equipment. The RS809 is available in Green SOT23 package. It operates over an ambient temperature range of -40°C to +125°C. Device Information (1) (1) PART NUMBER PACKAGE BODY SIZE (NOM) RS809 SOT23(3) 1.30mm×2.92mm For all available packages, see the orderable addendum at the end of the data sheet. 4 TYPICAL APPLICATION RS3005 IN OUT Vcc Vcc FPGA,ASIC,DSP RS809 RESET GND REV A.4 RESET GND 1 / 14 www.run-ic.com RS809 Table of Contents 1 FEATURES ...................................................................................................................................................... 1 2 APPLICATIONS ............................................................................................................................................... 1 3 DESCRIPTIONS ............................................................................................................................................... 1 4 TYPICAL APPLICATION ................................................................................................................................. 1 5 Revision History ............................................................................................................................................. 3 6 PACKAGE/ORDERING INFORMATION (1) ..................................................................................................... 4 7 PIN CONFIGURATIONS .................................................................................................................................. 5 8 SPECIFICATIONS ........................................................................................................................................... 6 8.1 Absolute Maximum Ratings (1) ................................................................................................................... 6 8.2 ESD Ratings............................................................................................................................................... 6 8.3 Thermal Information: .................................................................................................................................. 6 8.4 ELECTRICAL CHARACTERISTICS .......................................................................................................... 7 8.5 TYPICAL OPERATING CHARACTERISTICS........................................................................................... 8 9 Function Block Diagram .............................................................................................................................. 10 10 Detailed Description ................................................................................................................................... 10 11 Application and Implementation ............................................................................................................... 11 11.1 Ensuring a Valid RESET Output Down to VCC=0V ................................................................................ 11 11.2 Reset Timing .......................................................................................................................................... 11 12 PACKAGE OUTLINE DIMENSIONS ........................................................................................................... 12 13 TAPE AND REEL INFORMATION .............................................................................................................. 13 2 / 14 www.run-ic.com RS809 5 Revision History Note: Page numbers for previous revisions may different from page numbers in the current version. Version Change Date A.1 2021/08/09 A.2 2022/05/09 A.3 2022/05/10 A.4 2022/11/25 Change Item Initial version completed 1. Update PACKAGE MARKING on Page 5@RevA.1 2. Update Operating Temperature Range :-40°C to +125°C Update TYPICAL OPERATING CHARACTERISTICS 1. Update TYPICAL OPERATING CHARACTERISTICS 2. Update PACKAGE/ORDERING INFORMATION 3 / 14 www.run-ic.com RS809 6 PACKAGE/ORDERING INFORMATION (1) PRODUCT RS809 ORDERING NUMBER TEMPERATURE RANGE PACKAGE LEAD PACKAGE MARKING (2/3) PACKAGE OPTION RS809-1.63YSF3 -40°C ~+125°C SOT23 809A Tape and Reel,3000 RS809-2.63YSF3 -40°C ~+125°C SOT23 809B Tape and Reel,3000 RS809-2.93YSF3 -40°C ~+125°C SOT23 809C Tape and Reel,3000 RS809-3.08YSF3 -40°C ~+125°C SOT23 809D Tape and Reel,3000 RS809-4.00YSF3 -40°C ~+125°C SOT23 809E Tape and Reel,3000 RS809-4.40YSF3 -40°C ~+125°C SOT23 809F Tape and Reel,3000 RS809-4.65YSF3 -40°C ~+125°C SOT23 809G Tape and Reel,3000 NOTE: (1) This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the right-hand navigation. (2) There may be additional marking, which relates to the lot trace code information (data code and vendor code), the logo or the environmental category on the device. (3) A, B, C, D, E, F, G represents different Reset Thresholds. 4 / 14 www.run-ic.com RS809 7 PIN CONFIGURATIONS (TOP VIEW) GND 1 RS809 RESET 3 VCC 2 SOT23 PIN DESCRIPTION PIN NAME FUNCTION 1 GND 2 ̅̅̅̅̅̅̅̅̅ RESET 3 VCC Ground, reference for all signals. Active-Low Reset Output remains low while VCC is below the reset threshold, and for at least 200ms after VCC rises above the reset threshold. Power Supply Voltage that is monitored. SOT23 5 / 14 www.run-ic.com RS809 8 SPECIFICATIONS 8.1 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) (1)(2) VCC VI (1) (2) (3) (4) Supply voltage range Input voltage range (2) (2) MIN MAX UNIT -0.5 6.0 V -0.5 6.0 V -0.5 6.0 V -0.5 VCC+0.5 V -20 mA Vo Voltage range applied to any output in the high-impedance or power-off state Vo Voltage range applied to any output in the high or low state (2)(3) IIK Input clamp current VI