Microchip Technology Voltage Supervisor SOT23, User Manual

Page 1: ... 2006 Microchip Technology Inc DS51510B Voltage Supervisor SOT23 Evaluation Board User s Guide ...

Page 2: ... is a service mark of Microchip Technology Incorporated in the U S A All other trademarks mentioned herein are property of their respective companies 2006 Microchip Technology Incorporated Printed in the U S A All Rights Reserved Printed on recycled paper Note the following details of the code protection feature on Microchip devices Microchip products meet the specification contained in their part...

Page 3: ...on and Operation 7 2 1 Introduction 7 2 2 Features 7 2 3 Getting Started 8 2 4 Voltage Supervisor SOT23 Evaluation Board Description 12 2 5 Evaluating the Device 13 Appendix A Schematic and Layouts 15 A 1 Introduction 15 A 2 Schematics and PCB Layout 15 A 3 Board Schematic 1 16 A 4 Board Layout Top Layer With Silk Screen 17 Appendix B Bill Of Materials BOM 19 Appendix C Microchip Analog SOT 23 Dev...

Page 4: ...Voltage Supervisor SOT23 Evaluation Board User s Guide DS51510B page iv 2006 Microchip Technology Inc NOTES ...

Page 5: ...Appendix A Schematic and Layouts Shows the schematic and layout diagrams for the Voltage Supervisor SOT23 Evaluation Board Appendix B Bill Of Materials BOM Lists the parts used to build the Volt age Supervisor SOT23 Evaluation Board Appendix C Microchip Analog SOT 23 Device Compatibility Explains how this board PCB may be used with other Microchip Analog devices in the SOT 23 3 package NOTICE TO C...

Page 6: ...ip web site at www microchip com DEVICES AND DATA SHEET LITERATURE NUMBERS DOCUMENTATION CONVENTIONS Description Represents Examples Arial font Italic characters Referenced books MPLAB IDE User s Guide Emphasized text is the only compiler Device Literature Device Literature Device Literature MCP100 DS11187 MCP809 DS11194 TC1277 DS21383 MCP101 DS11187 MCP810 DS11194 TC1278 DS21384 MCP102 DS21906 TC...

Page 7: ...ng guides latest Microchip press releases listing of seminars and events listings of Microchip sales offices distributors and factory representatives CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels Distributor or Representative Local Sales Office Field Application Engineer FAE Technical Support Development Systems Information Line Customers should conta...

Page 8: ...Voltage Supervisor SOT23 Evaluation Board User s Guide DS51510B page 4 2006 Microchip Technology Inc NOTES ...

Page 9: ...d Voltage Detectors in the SOT 23 3 3 pin SOT 23 package The Voltage Supervisor SOT23 Evaluation Board PCB supports the four different SOT 23 3 pinouts for the product family This board has been made generic so that other devices may be supported with this board 1 3 WHAT THE VOLTAGE SUPERVISOR SOT23 EVALUATION BOARD KIT INCLUDES This Voltage Supervisor SOT23 Evaluation Board Kit includes Five Volt...

Page 10: ...Voltage Supervisor SOT23 Evaluation Board User s Guide DS51510B page 6 2006 Microchip Technology Inc NOTES ...

Page 11: ...s see Appendix C Microchip Analog SOT 23 Device Compatibility This board has been made generic so that other devices may be supported with this board However the silk screen markings are designed for ease of use with the voltage supervisor devices 2 2 FEATURES The Voltage Supervisor SOT23 Evaluation Board has the following features Connection terminals may be either through hole or surface mount F...

Page 12: ...ltage detectors that use the Option 3 pinout For other Microchip Analog Devices please refer to Appendix C Microchip Analog SOT 23 Device Compatibility FIGURE 2 1 VOLTAGE SUPERVISOR SOT23 EVALUATION BOARD SCHEMATIC 1 2 3 1 2 3 1 2 3 VSS VDD C1 1 C2 1 R1 1 R2 1 R3 1 U1 U1 U1 Option 1 Option 4 Option 2 1 2 3 U1 Option 3 VOUT Note 1 Components C1 C2 R1 R2 and R3 are placed to support different device...

Page 13: ...tion 2 RESET L Push Pull C1 0 1 µF MCP102 Option 4 RST L Push Pull MCP121 Option 4 RST L Open Drain with Internal Pull up MCP131 Option 4 RST L Open Drain R1 100 kΩ TC1275 Option 4 RESET L Push Pull C1 0 1 µF TC1276 Option 4 RESET L Open Drain C1 0 1 µF R1 47 kΩ TC1277 Option 4 RESET H Push Pull C1 0 1 µF TC1278 Option 4 RESET H Open Drain with Internal Pull up TC1279 Option 4 RESET L Open Drain w...

Page 14: ...r R1 is a pull up resistor that may need to be installed for devices with an open drain output Though resistor R2 is not currently required it was placed for possible future requirements Resistor R3 too is not required but may be useful if this board is to be interfaced into existing circuits If resistor R3 is to be installed remember to cut the trace that shorts out R3 Capacitors C1 and C2 are by...

Page 15: ...Microchip Technology Inc DS51510B page 11 TABLE 2 2 OPTIONAL PASSIVE COMPONENTS Device Comment C1 Power Supply Bypass Capacitor C2 Output Filter Capacitor R1 Pull up Resistor R2 Pull down Resistor R3 Inline Resistance of Device output ...

Page 16: ...digital volt meter DVM is required The type of equipment used will determine the evaluation that may be performed 2 4 3 SOT 23 3 Footprints There are four SOT 23 3 pinout options that the Voltage Supervisor SOT23 Evaluation Board PCB supports Figure 2 3 shows these four pinouts Some devices may use dif ferent nomenclature for the pin names such as GND instead of VSS VIN instead of VDD and RESET or...

Page 17: ...ogram ablity into the input signal that the device will be subjected to This also allows a particular waveform to be repeated such as a 60 Hz sine wave that varies from 1V to 5V Digital Multi Meter D M M VOUT Used to indicate the output state Low or High of the Voltage Supervisor Voltage Detector Oscilloscope VOUT Allows the device conditions and response to be better evaluated due to the ability ...

Page 18: ...Voltage Supervisor SOT23 Evaluation Board User s Guide DS51510B page 14 2006 Microchip Technology Inc NOTES ...

Page 19: ... SOT23 Evaluation Board Diagrams included in this appendix Board Schematic Digital Circuitry Board Top Layer A 2 SCHEMATICS AND PCB LAYOUT Figure A 3 shows the schematic of the Voltage Supervisor SOT23 Evaluation Board Figure A 4 shows the layout for the top layer of the Voltage Supervisor SOT23 Evaluation Board The layer order is shown in Figure A 1 FIGURE A 1 LAYER ORDER Top Layer Power Ground a...

Page 20: ...Voltage Supervisor SOT23 Evaluation Board User s Guide DS51510B page 16 2006 Microchip Technology Inc A 3 BOARD SCHEMATIC 1 M ...

Page 21: ...Schematic and Layouts 2006 Microchip Technology Inc DS51510B page 17 A 4 BOARD LAYOUT TOP LAYER WITH SILK SCREEN ...

Page 22: ...Voltage Supervisor SOT23 Evaluation Board User s Guide DS51510B page 18 2006 Microchip Technology Inc NOTES ...

Page 23: ...ler Capacitor Surface mount 805 package Optional Application dependent User specified 0 R1 Output Pull up resistor Surface mount 805 package Optional Application dependent User specified 0 R2 Output Pull down resistor Surface mount 805 package Optional Application dependent User specified 0 R3 Output inline resistor Surface mount 805 package Optional Application dependent User specified 0 VDD VSS ...

Page 24: ...Voltage Supervisor SOT23 Evaluation Board User s Guide DS51510B page 20 2006 Microchip Technology Inc NOTES ...

Page 25: ...luation Board PCB supports Figure C 1 shows these four pinouts Other Microchip analog devices may be used with this PCB if the power and ground pins match one of these four options Though these devices may use different nomenclature for the pin names as long as the power and ground signals match one of the four options this PCB should be able to be used to evaluate that device Table C 1 shows the ...

Page 26: ...nd CL will depend on the LDO used and the load of the circuit Look at both the worst case amplitude load requirements for a loaded and unloaded system As the output response of the LDOs become faster the selection of a smaller cheaper output load capacitor CL becomes possible for the same system performance FIGURE C 2 LDO EVALUATION SYSTEM Device Device Family Supported on Comment Recommended Comp...

Page 27: ...Microchip Analog SOT 23 Device Compatibility 2006 Microchip Technology Inc DS51510B page 23 NOTES ...

Page 28: ... 21 5407 5066 China Shenyang Tel 86 24 2334 2829 Fax 86 24 2334 2393 China Shenzhen Tel 86 755 8203 2660 Fax 86 755 8203 1760 China Shunde Tel 86 757 2839 5507 Fax 86 757 2839 5571 China Wuhan Tel 86 27 5980 5300 Fax 86 27 5980 5118 China Xian Tel 86 29 8833 7250 Fax 86 29 8833 7256 ASIA PACIFIC India Bangalore Tel 91 80 4182 8400 Fax 91 80 4182 8422 India New Delhi Tel 91 11 4160 8631 Fax 91 11 4...