MCP120/130 Microcontroller Supervisory Circuit with Open Drain Output FEATURES PACKAGES • Holds microcontroller in reset until supply voltage reaches stable operating level • Resets microcontroller during power loss • Precision monitoring of 3V, 3.3V and 5V systems • 7 voltage trip points available • Active low RESET pin • Open drain output • Internal pull-up resistor (5 kΩ) for MCP130 • Holds RESET for 350 ms (typical) • RESET to VCC = 1.0V • Accuracy of ±125 mV for 5V systems and ±75 mV for 3V systems over temperature • 45 µA typical operating current • Temperature range: - Industrial (I): -40°C to +85°C TO-92 WITH ‘F’ BONDOUT RST VSS VSS VDD VDD RST MCP120 MCP130 MCP130 TO-92 with ‘G’ Bondout VDD DESCRIPTION The Microchip Technology Inc. MCP120/130 is a voltage supervisory device designed to keep a microcontroller in reset until the system voltage has reached the proper level and stabilized. It also operates as protection from brown-out conditions when the supply voltage drops below a safe operating level. Both devices are available with a choice of seven different trip voltages and both have open drain outputs. The MCP130 has an internal 5 kΩ pullup resistor. Both devices have active low RESET pins. The MCP120/130 will assert the RESET signal whenever the voltage on the VDD pin is below the trip-point voltage. TO-92 with ‘D’ Bondout TO-92 with ‘H’ Bondout VDD VSS RST MCP120 MCP130 RST VSS MCP120 SOT-23-3 150mil SOIC RST VSS VDD RST VDD NC VSS MCP120 MCP130 1 2 3 4 8 7 6 5 NC NC NC NC MCP120 MCP130 BLOCK DIAGRAM VDD Comparator + - Delay Circuit Output Driver 5kΩ internal pull-up on MCP130 only RESET Bandgap Reference 2001 Microchip Technology Inc. DS11184D-page 1 MCP120/130 1.0 ELECTRICAL CHARACTERISTICS 1.1 Maximum Ratings* *Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. VDD........................................................................ 7.0V All inputs and outputs w.r.t. VSS .....-0.6V to VDD +1.0V Storage temperature .......................... -65°C to +150°C Ambient temp. with power applied ..... -65°C to +125°C ESD protection on all pins ..................................... ≥ 2 kV DC AND AC CHARACTERISTICS All parameters apply at the specified temp and voltage ranges unless otherwise noted. Parameter Operating Voltage Range VDD Value to RESET VDD = 1.0 - 5.5V Industrial (I): -40°C to +85°C Symbol Min. Typ. Max. Units VDD 1.0 — 5.5 V VDDMIN 1.0 — — V IDD — 45 60 µA VDD Trip Point MCP1X0-270 MCP1X0-300 MCP1X0-315 MCP1X0-450 MCP1X0-460 MCP1X0-475 MCP1X0-485 VTRIP 2.55 2.85 3.0 4.25 4.35 4.50 4.60 2.625 2.925 3.075 4.375 4.475 4.625 4.725 2.7 3.0 3.15 4.50 4.60 4.75 4.85 V RESET Low Level Output Voltage MCP1X0-270 MCP1X0-300 MCP1X0-315 VOL — — 0.4 V — — 0.6 VDD-0.7 — — V — 5 — kΩ Operating Current MCP1X0-450 MCP1X0-460 MCP1X0-475 MCP1X0-485 RESET High MCP130-xxx Level Output (All VTRIP Points) Voltage (MCP130 Only) VOH Pull-up Resistor (MCP130 Only) — 1 — µA VHYS — 50 — mV VDD Detect to RESET Inactive tRPU 150 350 700 ms VDD Detect to RESET tRPD — 10 — µs Note: VDD = 5.5V (no load) IOL = 3.2 mA, VDD = VTRIPMIN IOL = 8.5 mA, VDD = VTRIPMIN Threshold Hysteresis Output Leakage (MCP120 Only) Test Conditions IOH = 50 µA,VDD > VTRIPMAX VDD ramped from VTRIPMAX + 250 mV down to VTRIPMIN 250 mV Typical values are for 25°C and VDD = 5.0V 2001 Microchip Technology Inc. DS11184D-page 2 MCP120/130 VTRIP VDD tRPU tRPD RESET VOH VOH Figure 1-1: MCP120/130 Timing Diagram 2001 Microchip Technology Inc. DS11184D-page 3 MCP120/130 APPLICATIONS INFORMATION 2.1 The Need for Supervisory Circuits For many of today’s microcontroller applications, care must be taken to prevent low power conditions that can cause many different system problems. The most common causes are brown-out conditions where the system supply drops below the operating level momentarily, and the second, is when a slowly decaying power supply causes the microcontroller to begin executing instructions without enough voltage to sustain SRAM and producing indeterminate results. 5V SUPPLY VOLTAGE 2.0 VTRIPMAX VTRIPMIN (VTRIPMIN - VDD) Transient Duration 0 TIME 0 VDD VDD Microcontroller Bypass Capacitor VDD VSS RST 10 TA = +25°C MCLR or RESET VSS Figure 2-1: 2.2 Typical Application TRANSIENT DURATION (µS) MCP120 8 6 Transients above the curve will cause a reset 4 2 0 Transients below the curve will NOT cause a reset 0 1 2 3 VTRIP - VDD (V) 4 5 Negative Going VDD Transients Many system designers implementing POR circuits are concerned about the minimum pulse width required to cause a reset. Figure 2-2 shows typical transient voltage below the trip point (VTRIP - VDD) vs. transient duration. It shows that the farther below the trip point the transient pulse goes, the duration of the pulse required to cause a reset gets shorter. A 0.1 µF bypass cap mounted as close as possible to the VDD pin provides additional transient immunity. DS11184D-page 4 Figure 2-2: Typical Transient Response 2001 Microchip Technology Inc. MCP120/130 Effect of Temperature on Timeout Period (tRPU) The timeout period (tRPU) determines how long the device remains in the reset condition. This is controlled by an internal RC timer and is effected by both VDD and temperature. The graph shown in Figure 2-3 shows typical response for different VDD values and temperatures. TIMEOUT PERIOD (tRPU) (ms) 700 600 1.002 NORMALIZED THRESHOLD* (VTRIP) 2.3 1.000 0.998 0.996 0.994 0.992 0.997 -40 VDD = 6V -20 0 500 VDD = 5V 300 Figure 2-5: VDD = 4V 200 100 800 -20 0 20 40 60 80 VDD = 2.5V 100 700 VDD = 1.5V VOL (mV) tRPU vs. Temperature 60 OPERATING CURRENT (µA) 80 Normalized VTRIP vs. Temperature 600 50 60 VDD = 3V TEMPERATURE (°C) Figure 2-3: 40 * Multiply value at 25°C by this factor to determine the value at temperature 400 100 -40 20 TEMPERATURE (°C) VDD = 3.5V 500 400 VDD = 4.5V 300 200 VDD = 5V VDD = 5.5V 100 TA = +25°C 40 0 0 30 2 VDD = 3V 4 6 8 10 12 14 16 18 20 IOL (mA) VDD = 4V 20 Figure 2-6: VOL vs. IOL 10 0 -40 1.3 -20 0 20 40 60 80 100 TEMPERATURE (°C) IDD vs. Temperature NORMALIZED IOL* Figure 2-4: 1.2 1.1 1.00 0.9 0.8 0.7 -40 -20 0 20 40 60 TEMPERATURE (°C) 80 100 * Multiply value at 25°C by this factor to determine the value at temperature Figure 2-7: 2001 Microchip Technology Inc. Normalized IOL vs. Temperature DS11184D-page 5 MCP120/130 3.0 PACKAGING INFORMATION 3.1 Package Marking Information 3-Lead Plastic Transistor Outline (TO-92) Example: XXXXXX XXXXXX XXXXXX MCP120 XXXXXX XXXXXX YWWNNN YWWNNN 8-Lead Plastic Small Outline (SOIC) Example: XXXXXXXX XXXXYYWW MCP120 XXXXYYWW NNN NNN 3-Lead Plastic Small Outline Transistor (SOT23) Example: XXNN PKNN SOT23 PARTS LABELING: The table below identifies the first 2 characters (XX) in the 4-character field (XXNN) for marking of the 3-Lead SOT23 package. Mark * Mark Part Number SJ MCP120T-270I/TT PJ MCP130T-270I/TT SK MCP120T-300I/TT PK MCP130T-300I/TT SL MCP120T-315I/TT PL MCP130T-315I/TT SM MCP120T-450I/TT PM MCP130T-450I/TT SN MCP120T-460I/TT PN MCP130T-460I/TT SO MCP120T-475I/TT PO MCP130T-475I/TT SP MCP120T-485I/TT PP MCP130T-485I/TT Legend: XX...X YY WW NNN Note: Part Number Customer specific information* Year code (last 2 digits of calendar year) Week code (week of January 1 is week ‘01’) Alphanumeric traceability code In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line thus limiting the number of available characters for customer specific information. Standard OTP marking consists of Microchip part number, year code, week code, and traceability code. For OTP marking beyond this, certain price adders apply. Please check with your Microchip Sales Office. For QTP devices, any special marking adders are included in QTP price. DS11184D-page 6 2001 Microchip Technology Inc. MCP120/130 3.2 Package Detail Information 3-Lead Plastic Transistor Outline (TO) (TO-92) E1 D n 1 L 1 2 3 α B p c A R Units Dimension Limits n p β MIN INCHES* NOM MAX MILLIMETERS NOM 3 1.27 3.30 3.62 4.45 4.71 4.32 4.64 2.16 2.29 12.70 14.10 0.36 0.43 0.41 0.48 4 5 2 3 MIN Number of Pins 3 Pitch .050 Bottom to Package Flat A .130 .143 .155 Overall Width E1 .175 .186 .195 Overall Length D .170 .183 .195 Molded Package Radius R .085 .090 .095 Tip to Seating Plane L .500 .555 .610 c Lead Thickness .014 .017 .020 Lead Width B .016 .019 .022 α 4 5 6 Mold Draft Angle Top β Mold Draft Angle Bottom 2 3 4 *Controlling Parameter Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: TO-92 Drawing No. C04-101 2001 Microchip Technology Inc. MAX 3.94 4.95 4.95 2.41 15.49 0.51 0.56 6 4 DS11184D-page 7 MCP120/130 3-Lead Plastic Small Outline Transistor (TT) (SOT23) E E1 2 B p1 n D p 1 α c A φ β A2 A1 L Units Dimension Limits n p Number of Pins Pitch Outside lead pitch (basic) Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Overall Length Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter § Significant Characteristic MIN p1 A A2 A1 E E1 D L φ c B α β .035 .035 .000 .083 .047 .110 .014 0 .004 .015 0 0 INCHES* NOM 3 .038 .076 .040 .037 .002 .093 .051 .115 .018 5 .006 .017 5 5 MAX .044 .040 .004 .104 .055 .120 .022 10 .007 .020 10 10 MILLIMETERS NOM 3 0.96 1.92 0.89 1.01 0.88 0.95 0.01 0.06 2.10 2.37 1.20 1.30 2.80 2.92 0.35 0.45 0 5 0.09 0.14 0.37 0.44 0 5 0 5 MIN MAX 1.12 1.02 0.10 2.64 1.40 3.04 0.55 10 0.18 0.51 10 10 Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: TO-236 Drawing No. C04-104 DS11184D-page 8 2001 Microchip Technology Inc. MCP120/130 8-Lead Plastic Small Outline (SN) – Narrow, 150 mil (SOIC E E1 p D 2 B n 1 h α 45° c A2 A φ β L Units Dimension Limits n p Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Overall Length Chamfer Distance Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter § Significant Characteristic A A2 A1 E E1 D h L φ c B α β MIN .053 .052 .004 .228 .146 .189 .010 .019 0 .008 .013 0 0 A1 INCHES* NOM 8 .050 .061 .056 .007 .237 .154 .193 .015 .025 4 .009 .017 12 12 MAX .069 .061 .010 .244 .157 .197 .020 .030 8 .010 .020 15 15 MILLIMETERS NOM 8 1.27 1.35 1.55 1.32 1.42 0.10 0.18 5.79 6.02 3.71 3.91 4.80 4.90 0.25 0.38 0.48 0.62 0 4 0.20 0.23 0.33 0.42 0 12 0 12 MIN MAX 1.75 1.55 0.25 6.20 3.99 5.00 0.51 0.76 8 0.25 0.51 15 15 Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: MS-012 Drawing No. C04-057 2001 Microchip Technology Inc. DS11184D-page 9 MCP120/130 ON-LINE SUPPORT Microchip provides on-line support on the Microchip World Wide Web (WWW) site. The web site is used by Microchip as a means to make files and information easily available to customers. To view the site, the user must have access to the Internet and a web browser, such as Netscape or Microsoft Explorer. Files are also available for FTP download from our FTP site. Systems Information and Upgrade Hot Line The Systems Information and Upgrade Line provides system users a listing of the latest versions of all of Microchip's development systems software products. Plus, this line provides information on how customers can receive any currently available upgrade kits.The Hot Line Numbers are: 1-800-755-2345 for U.S. and most of Canada, and 1-480-792-7302 for the rest of the world. Connecting to the Microchip Internet Web Site The Microchip web site is available by using your favorite Internet browser to attach to: www.microchip.com The file transfer site is available by using an FTP service to connect to: ftp://ftp.microchip.com The web site and file transfer site provide a variety of services. Users may download files for the latest Development Tools, Data Sheets, Application Notes, User’s Guides, Articles and Sample Programs. A variety of Microchip specific business information is also available, including listings of Microchip sales offices, distributors and factory representatives. Other data available for consideration is: • Latest Microchip Press Releases • Technical Support Section with Frequently Asked Questions • Design Tips • Device Errata • Job Postings • Microchip Consultant Program Member Listing • Links to other useful web sites related to Microchip Products • Conferences for products, Development Systems, technical information and more • Listing of seminars and events DS11184D-page 10 2001 Microchip Technology Inc. MCP120/130 READER RESPONSE It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip product. If you wish to provide your comments on organization, clarity, subject matter, and ways in which our documentation can better serve you, please FAX your comments to the Technical Publications Manager at (480) 792-7578. Please list the following information, and use this outline to provide us with your comments about this Data Sheet. To: Technical Publications Manager RE: Reader Response Total Pages Sent From: Name Company Address City / State / ZIP / Country Telephone: (_______) _________ - _________ FAX: (______) _________ - _________ Application (optional): Would you like a reply? Device: MCP120/130 Y N Literature Number: DS11184D Questions: 1. What are the best features of this document? 2. How does this document meet your hardware and software development needs? 3. Do you find the organization of this data sheet easy to follow? If not, why? 4. What additions to the data sheet do you think would enhance the structure and subject? 5. What deletions from the data sheet could be made without affecting the overall usefulness? 6. Is there any incorrect or misleading information (what and where)? 7. How would you improve this document? 8. How would you improve our software, systems, and silicon products? 2001 Microchip Technology Inc. DS11184D-page 11 MCP120/130 NOTES: DS11184D-page 12 2001 Microchip Technology Inc. MCP120/130 NOTES: 2001 Microchip Technology Inc. DS11184D-page 13 MCP120/130 PRODUCT IDENTIFICATION SYSTEM To order or to obtain information (e.g., on pricing or delivery), please refer to the factory or the listed sales offices. PART NO. X Device RESET/ RESET VTRIP Voltage Device: X Bondout Temperature Option Range MCP120: MCP120T: MCP130: MCP130T: RESET/RESET VTRIP Voltage Bondout Option: (TO-92 Only) X /XX Package Supervisor circuit with open drain output Supervisor circuit with open drain output (tape & reel) Supervisor circuit with open drain output and internal pull-up resistor Supervisor circuit with open drain output and internal pull-up resistor (tape & reel) 270 300 315 450 460 475 485 = = = = = = = 2.55 ≤ VTRIP ≤ 2.70 2.85 ≤ VTRIP ≤ 3.00 3.00 ≤ VTRIP ≤ 3.15 4.25 ≤ VTRIP ≤ 4.50 4.35 ≤ VTRIP ≤ 4.60 4.50 ≤ VTRIP ≤ 4.75 4.60 ≤ VTRIP ≤ 4.85 D F G H = = = = D Bond Option (see bond option chart) F Bond Option G Bond Option H Bond Option Examples: a) MCP120–270I/SN = VTRIP range of 2.55V 2.70V, Industrial Temp., SOIC package b) MCP120–300DI/TO = VTRIP range of 2.85V 3.00V, Bonding Option D, Industrial Temp., TO-92 package c) MCP120T–315I/TT = VTRIP range of 3.00V 3.15V, Industrial Temp., SOT-23 package d) MCP130–450I/SN = VTRIP range of 4.25V 4.50V, Industrial Temp., SOIC package e) MCP130–460FI/TO = VTRIP range of 4.35V 4.60V, Bonding Option F, Industrial Temp., TO-92 package f) MCP130T–475I/TT = Tape & Reel, VTRIP range of 4.50V - 4.75V, Industrial Temp., SOT-23 package TO-92 with ‘D’ Bondout RST VSS VDD Temperature Range: I Package: SN TO TT -40°C to +85°C (only offered in I) = = = = SOIC (8-lead, 150 mil body) TO-92 (3-lead) [offered in bags only] SOT-23 (3-lead) [offered in tape & reel only] MCP120 MCP130 TO-92 with ‘G’ Bondout VDD RST VSS MCP120 TO-92 with ‘F’ Bondout VSS VDD RST MCP130 TO-92 with ‘H’ Bondout VDD VSS RST MCP120 MCP130 Sales and Support Data Sheets Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recommended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following: 1. 2. 3. Your local Microchip sales office The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277 The Microchip Worldwide Site (www.microchip.com) Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products. DS11184D-page 14 2001 Microchip Technology Inc. MCP120/130 “All rights reserved. Copyright © 2001, Microchip Technology Incorporated, USA. Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. Use of Microchip’s products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights. The Microchip logo and name are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. All rights reserved. All other trademarks mentioned herein are the property of their respective companies. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights.” Trademarks The Microchip name, logo, PIC, PICmicro, PICMASTER, PICSTART, PRO MATE, KEELOQ, SEEVAL, MPLAB and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. Total Endurance, ICSP, In-Circuit Serial Programming, FilterLab, MXDEV, microID, FlexROM, fuzzyLAB, MPASM, MPLINK, MPLIB, PICDEM, ICEPIC, Migratable Memory, FanSense, ECONOMONITOR, SelectMode and microPort are trademarks of Microchip Technology Incorporated in the U.S.A. Serialized Quick Term Programming (SQTP) is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2001, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Microchip received QS-9000 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona in July 1999. The Company’s quality system processes and procedures are QS-9000 compliant for its PICmicro® 8-bit MCUs, KEELOQ® code hopping devices, Serial EEPROMs and microperipheral products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001 certified. 2001 Microchip Technology Inc. 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Le Colleoni 1 20041 Agrate Brianza Milan, Italy Tel: 39-039-65791-1 Fax: 39-039-6899883 United Kingdom Arizona Microchip Technology Ltd. 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44 118 921 5869 Fax: 44-118 921-5820 01/30/01 All rights reserved. © 2001 Microchip Technology Incorporated. Printed in the USA. 2/01 Printed on recycled paper. Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. Use of Microchip’s products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, except as maybe explicitly expressed herein, under any intellectual property rights. The Microchip logo and name are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. All rights reserved. All other trademarks mentioned herein are the property of their respective companies. DS11184D-page 16 2001 Microchip Technology Inc.