APX809-31SAG-7

NOT RECOMMENDED FOR NEW DESIGN USE APX809S/810S APX809/810 3-PIN MICROPROCESSOR RESET CIRCUITS Description Pin Assignments The APX809/810 are used for microprocessor (µP) supervisory circuits to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with 5V, 3.3V, 3.0V powered circuits. (Top View) GND 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 240ms after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The APX809/810 have push pull outputs. The APX809 have an active low VCC RESET (RESET) RESET output, while the SOT23 (SA Package) APX810 has an active high 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 1V. Low supply current makes the APX809/810 ideal for use in portable equipment. The APX809/810 is available in a 3-pin SOT23 package. (Top View) RESET (RESET) Features  VCC   Precision Monitoring of 2.5V, 3V, 3.3V, and 5V Power-Supply Voltages Fully Specified Over Temperature Available in Three Output Configurations  Push-Pull         Push-Pull RESET Active High (APX810) 200ms Typ Power-On Reset Pulse Width 30µA Supply Current (Typ.) Guaranteed Reset Valid to VCC = 1V No External Components SOT23: Available in “Green” Molding Compound (No Br, Sb) Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: GND RESET Active Low (APX809) SOT23 (SR Package) Applications      Computers Controllers Intelligent Instruments Critical µP and µC Power Monitoring Portable/Battery Powered Equipment 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain 1V. Once VCC exceeds the reset threshold, an internal timer keeps RESET low for the reset timeout period; after this interval, RESET goes high. If a brownout condition occurs (VCC dips below the RESET reset threshold), RESET goes low. Any time VCC goes below the reset threshold, the internal timer resets to zero, and RESET goes low. The internal timer starts after VCC returns above the reset threshold, and When VCC falls below 1V, the APX809 RESET remains low for the reset timeout period. RESET output no longer sinks current — it becomes an open circuit. Therefore, high-impedance CMOS logic inputs connected to RESET can drift to undetermined voltages. This presents no problem in most applications since most µP and other circuitry is inoperative with VCC below 1V. However, in applications where RESET must be valid down to 0V, adding a pull down resistor to RESET causes any stray leakage currents to flow to ground, holding RESET low. R1’s value is not critical; 100k are large enough not to load RESET and small enough to pull RESET to ground. For the APX810 if RESET is required to remain valid for VCC < 1V. Benefits of Highly Accurate Reset Threshold Most µP supervisor ICs has reset threshold voltages between 5% and 10% below the value of nominal supply voltages. This ensures a reset will not occur within 5% of the nominal supply, but will occur when the supply is 10% below nominal. When using ICs rated at only the nominal supply ±5%, this leaves a zone of uncertainty where the supply is between 5% and 10% low, and where the reset may or may not be asserted. Ordering Information APX 8 XX - XX XX G - 7 Enable 09 : Active-Low 10 : Active-High Voltage 46 44 40 31 29 26 23 : 4.63 : 4.38 : 4.00 : 3.08 : 2.93 : 2.63 : 2.25 Package Green Packing SA/SR : SOT23 G : Green 7 : Tape & Reel 7” Tape and Reel Package Code Packaging (Note 5) Quantity Part Number Suffix APX809-XXSAG-7 SA SOT23 3000/Tape & Reel -7 APX810-XXSAG-7 SA SOT23 3000/Tape & Reel -7 APX809-XXSRG-7 SR SOT23 3000/Tape & Reel -7 APX810-XXSRG-7 SR SOT23 3000/Tape & Reel -7 Part Number Note: 5. Pad layout as shown in Diodes Incorporated’s package outline PDFs, which can be found on our website at http://www.diodes.com/package-outlines.html. APX809/810 Document number: DS31322 Rev. 5 - 3 5 of 8 www.diodes.com March 2017 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN USE APX809S/810S APX809/810 Marking Information (1) SOT23 ( Top View ) 3 XX Y W X 1 2 XX : Identification code Y : Year 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : A~Z : Green Device Package Identification Code APX809-46SA SOT23 X2 APX809-44SA SOT23 X3 APX809-40SA SOT23 X4 APX809-31SA SOT23 X5 APX809-29SA SOT23 X6 APX809-26SA SOT23 X7 APX809-23SA SOT23 X8 APX810-46SA SOT23 XA APX810-44SA SOT23 XB APX810-40SA SOT23 XC APX810-31SA SOT23 XD APX810-29SA SOT23 XE APX810-26SA SOT23 XF APX810-23SA SOT23 XG APX809-46SR SOT23 Y2 APX809-44SR SOT23 Y3 APX809-40SR SOT23 Y4 APX809-31SR SOT23 Y5 APX809-29SR SOT23 Y6 APX809-26SR SOT23 Y7 APX809-23SR SOT23 Y8 APX810-46SR SOT23 YA APX810-44SR SOT23 YB APX810-40SR SOT23 YC APX810-31SR SOT23 YD APX810-29SR SOT23 YE APX810-26SR SOT23 YF APX810-23SR SOT23 YG APX809/810 Document number: DS31322 Rev. 5 - 3 6 of 8 www.diodes.com March 2017 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN USE APX809S/810S APX809/810 Package Outline Dimensions Please see http://www.diodes.com/package-outlines.html for the latest version. SOT23 All 7° H K1 GAUGE PLANE 0.25 J K a M A L C L1 B D F G SOT23 Dim Min Max Typ A 0.37 0.51 0.40 B 1.20 1.40 1.30 C 2.30 2.50 2.40 D 0.89 1.03 0.915 F 0.45 0.60 0.535 G 1.78 2.05 1.83 H 2.80 3.00 2.90 J 0.013 0.10 0.05 K 0.890 1.00 0.975 K1 0.903 1.10 1.025 L 0.45 0.61 0.55 L1 0.25 0.55 0.40 M 0.085 0.150 0.110 a 0° 8° -All Dimensions in mm Suggested Pad Layout Please see http://www.diodes.com/package-outlines.html for the latest version. SOT23 Y C Y1 X APX809/810 Document number: DS31322 Rev. 5 - 3 Dimensions C X X1 Y Y1 Value (in mm) 2.0 0.8 1.35 0.9 2.9 X1 7 of 8 www.diodes.com March 2017 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN USE APX809S/810S APX809/810 IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 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LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. 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