TC52 Dual Channel Voltage Detector Features General Description • Two Independent Voltage Detectors in One Package • Highly Accurate: ±2% • Low Power Consumption: 2.0A, Typ. • Detect Voltage Range: 1.5V to 5.0V • Operating Voltage: 1.5V to 10.0V • Output Configuration: N-Channel Open-Drain • Space-Saving 5-Pin SOT-23A Package The TC52 consists of two independent low power voltage detectors in a space-saving 5-pin SOT-23A package. Typical supply current consumption is only 2A at an input voltage of 2V. The voltage detection threshold settings are factory-programmed and guaranteed to ±2% accuracy. Threshold settings over a range of 1.5V to 5.0V are available. The TC52 is available with open drain (NMOS) configurations. Small size, high precision, low supply current, and low installed cost makes the TC52 the ideal voltage detector for a wide variety of voltage monitoring applications. Typical Applications • Battery Life Monitors and Recharge Voltage Monitors • Memory Battery Backup Circuitry • Power-On Reset Circuits • Power Failure Detection • Delay Circuitry Functional Block Diagram VIN1 + VOUT1 – Device Selection Table Part Number Package TC52-xxxxxxxxxx Temp. Range VIN2 5-Pin SOT-23A -40°C to +85°C + Other output voltages are available. Please contact Microchip Technology Inc. for details. VOUT2 – GND Package Type VREF 5-Pin SOT-23A VOUT2 VIN2 5 4 TC52 1 2 3 VOUT1 VIN1 GND 2001-2012 Microchip Technology Inc. DS21430C-page 1 TC52 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings* Input Voltage ........................................................+12V Output Current ....................................................50mA Output Voltage.......................VIN + 0.3V to VSS – 0.3V Power Dissipation 5-Pin SOT-23A ...........................................100mW Operating Temperature Range.............-40°C to +85°C Storage Temperature Range ..............-40°C to +125°C *Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. TC52 ELECTRICAL SPECIFICATIONS Electrical Characteristics: TA = 25°C, unless otherwise specified. Note 1. Symbol Parameter Min Typ Max Units Test Conditions VIN Operating Voltage 1.5 — 10.0 V VDF (T) = 1.5 to 5.0V ISS Supply Current — — — — — 1.35 1.50 1.95 2.40 3.00 3.90 4.50 5.10 5.70 6.30 A VIN1 = 1.5V VIN1 = 2.0V VIN1 = 3.0V VIN1 = 4.0V VIN1 = 5.0V IIN2 Input Current VIN2 — — — — — 0.45 0.50 0.65 0.80 1.00 1.30 1.50 1.70 1.90 2.10 A VIN1 = 1.5V VIN1 = 2.0V VIN1 = 3.0V VIN1 = 4.0V VIN1 = 5.0V VDET1 - Channel 1 Detect Voltage VT1 x 0.98 VT1 ±0.5% VT1 x 1.02 V Note 2 VDET2 - Channel 2 Detect Voltage VT2 x 0.98 VT2 ±0.5% VT2 x 1.02 V Note 2 VHYS1 Hysteresis Range 1 VDET1 - x 0.02 VDET1 - x 0.05 VDET1 - x 0.08 VHYS2 Hysteresis Range 2 VDET2 - x 0.02 VDET2 - x 0.05 VDET2 - x 0.08 IOUT Output Current 0.3 3.0 5.0 6.0 7.0 2.2 7.7 10.1 11.5 13.0 — — — — — VDET -/ (TOPR VDET -) Temperature Characteristics — ±100 — tDLY Detection Time — — 0.2 Note 1: 2: V V mA VOL = 0.5V, VIN1 = 1.0V VIN1 = 2.0V VIN1 = 3.0V VIN1 = 4.0V VIN1 = 5.0V ppm/°C -40°C TOPR 85°C msec Time from VIN = VDET - to VOUT = VOL Additional resistance between the VIN1 pin and the supply voltage may alter the electrical characteristics. VT1, VT2 are the factory-programmed voltage detection thresholds. DS21430C-page 2 2001-2012 Microchip Technology Inc. TC52 2.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 2-1. TABLE 2-1: PIN FUNCTION TABLE Pin No. (5-Pin SOT-23A) Symbol 3.0 Description 1 VOUT1 2 VIN 3 GND Ground terminal. 4 VIN2 Detect voltage 2. 5 VOUT2 Detector #1 output. Supply voltage input, detect voltage 1. Detector #2 output. DETAILED DESCRIPTION In normal steady-state operation and for either channel, when VIN > VDET -, the output is high, see Figure 3-1. (In the case of the TC52N, this is an opendrain condition.) If and when the input falls below VDET -, the output pulls down (Logic 0) to VSS. Generally, VOUT can pull down to within 0.5V of VSS at rated output current and input voltages. (Also see Section 1.0, Electrical Characteristics). FIGURE 3-1: The output, VOUT, stays valid until the input voltage falls below the minimum operating voltage, VINMIN, of 0.7V. Below this minimum operating voltage, the output is undefined. During power-up or anytime VIN has fallen below VINMIN, VOUT will remain undefined until VIN rises above VINMIN, at which time the output becomes valid. VOUT is maintained in its active low state while VINMIN < VIN < VDET +. (VDET + = VDET - + VHYST). If and when the input rises above VDET +, the output will assume its inactive state (open-drain for TC52N). TIMING DIAGRAM VINx VDET+ VHYST Release Voltage or RESET Voltage Detect Voltage VDET– Minimum Operating Voltage Ground Level VOUTx Output Voltage Ground Level 2001-2012 Microchip Technology Inc. DS21430C-page 3 TC52 4.0 APPLICATIONS INFORMATION 4.1 The circuit shown in Figure 4-1 provides both a processor supply monitor/reset function, as well as a low battery detect function. As shown, the TC52N3330ECT (N-Channel outputs) uses Detector 2 to monitor the system power supply rail. When the power supply is 10% below its nominal output voltage rating, the VOUT2 output is driven and held low. When the power supply voltage is above 3.0V nominal, VOUT2 is driven to an open circuit and the combination of R1 and C1 provides a reset time out delay. Detector 1 monitors the voltage on the main supply battery. A low battery condition is indicated when the battery voltage falls to 3.3V, at which time the main processor is interrupted to initiate a warning or system shutdown. Pin 2 (VIN1) acts as both the input to Voltage Detector #1, as well as the power supply input for the chip. As such, always assign VIN1 to monitor voltages between 1.5V and 10V. Failure to do this will result in unreliable detector operation due to an out-of-tolerance supply voltage. In high noise environments, it may be necessary to install a small input bypass capacitor (0.01F to 0.1F) from VIN1 to ground to minimize onchip power supply noise. FIGURE 4-1: Battery and Main Supply Monitor SUPPLY MONITOR AND PROCESSOR SUPERVISOR +3.3V TC105 Step Down DC/DC Converter + – 6V Battery System 3.3V VIN2 VOUT2 +C 1 – 1µF GND +3.3V TC52N3330ECT R2 47K VIN1 DS21430C-page 4 R1 47K VOUT1 RESET Processor INT 2001-2012 Microchip Technology Inc. TC52 5.0 PACKAGING INFORMATION 5.1 Package Marking Information 3 1 2 represents N-channel indication and integer part of output voltage 3 Symbol Output C N CMOS Nch represents registration serial number Symbol Detect Voltage 1 Detect Voltage 2 0P 4.5 2.7 Note: Symbols for other custom voltages set prior to shipment. 4 5.2 represents assembly lot code Taping Form Component Taping Orientation for 5-Pin SOT-23A (EIAJ SC-74A) Devices User Direction of Feed Device Marking W PIN 1 P Standard Reel Component Orientation TR Suffix Device (Mark Right Side Up) Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size 8 mm 4 mm 3000 7 in 5-Pin SOT-23A 2001-2012 Microchip Technology Inc. DS21430C-page 5 TC52 5.3 Package Dimensions Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging SOT-23A-5 .075 (1.90) REF. .071 (1.80) .059 (1.50) .122 (3.10) .098 (2.50) .020 (0.50) .012 (0.30) PIN 1 .037 (0.95) REF. .122 (3.10) .106 (2.70) .057 (1.45) .035 (0.90) .006 (0.15) .000 (0.00) .010 (0.25) .004 (0.09) 10° MAX. .024 (0.60) .004 (0.10) Dimensions: inches (mm) DS21430C-page 6 2001-2012 Microchip Technology Inc. TC52 6.0 REVISION HISTORY Revision C (December 2012) Added a note to each package outline drawing. 2001-2012 Microchip Technology Inc. DS21430C-page 7 TC52 NOTES: DS21430C-page 8 2001-2012 Microchip Technology Inc. TC52 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART CODE TC52 N 45 27 E CT XX Output Configuration: N = Open Drain Detected Voltage 1*: Ex: 45 = 4.5V Detected Voltage 2*: Ex: 27 = 2.7V Temperature: E: -40°C to +85°C Package Type and Pin Count: CT: 5-Pin SOT-23A Taping Direction: TR: Standard Taping *Other voltages are available. Please contact Microchip Technology Inc. for details. 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. Your local Microchip sales office 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. 2001-2012 Microchip Technology Inc. DS21430C-page9 TC52 NOTES: DS21430C-page10 2001-2012 Microchip Technology Inc. Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. • Microchip is willing to work with the customer who is concerned about the integrity of their code. • Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, dsPIC, FlashFlex, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, PIC32 logo, rfPIC, SST, SST Logo, SuperFlash and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor, MTP, SEEVAL and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries. Analog-for-the-Digital Age, Application Maestro, BodyCom, chipKIT, chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE, rfLAB, Select Mode, SQI, Serial Quad I/O, Total Endurance, TSHARC, UniWinDriver, WiperLock, ZENA and Z-Scale are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. GestIC and ULPP are registered trademarks of Microchip Technology Germany II GmbH & Co. & KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies. © 2001-2012, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. ISBN: 9781620768020 QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV == ISO/TS 16949 == 2001-2012 Microchip Technology Inc. Microchip received ISO/TS-16949:2009 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified. DS21430C-page 11 Worldwide Sales and Service AMERICAS ASIA/PACIFIC ASIA/PACIFIC EUROPE Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://www.microchip.com/ support Web Address: www.microchip.com Asia Pacific Office Suites 3707-14, 37th Floor Tower 6, The Gateway Harbour City, Kowloon Hong Kong Tel: 852-2401-1200 Fax: 852-2401-3431 India - Bangalore Tel: 91-80-3090-4444 Fax: 91-80-3090-4123 India - New Delhi Tel: 91-11-4160-8631 Fax: 91-11-4160-8632 Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 India - Pune Tel: 91-20-2566-1512 Fax: 91-20-2566-1513 France - Paris Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 Japan - Osaka Tel: 81-66-152-7160 Fax: 81-66-152-9310 Germany - Munich Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Atlanta Duluth, GA Tel: 678-957-9614 Fax: 678-957-1455 Boston Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088 Chicago Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075 Cleveland Independence, OH Tel: 216-447-0464 Fax: 216-447-0643 Dallas Addison, TX Tel: 972-818-7423 Fax: 972-818-2924 Detroit Farmington Hills, MI Tel: 248-538-2250 Fax: 248-538-2260 Indianapolis Noblesville, IN Tel: 317-773-8323 Fax: 317-773-5453 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 Santa Clara Santa Clara, CA Tel: 408-961-6444 Fax: 408-961-6445 Toronto Mississauga, Ontario, Canada Tel: 905-673-0699 Fax: 905-673-6509 Australia - Sydney Tel: 61-2-9868-6733 Fax: 61-2-9868-6755 China - Beijing Tel: 86-10-8569-7000 Fax: 86-10-8528-2104 China - Chengdu Tel: 86-28-8665-5511 Fax: 86-28-8665-7889 China - Chongqing Tel: 86-23-8980-9588 Fax: 86-23-8980-9500 Netherlands - Drunen Tel: 31-416-690399 Fax: 31-416-690340 Korea - Daegu Tel: 82-53-744-4301 Fax: 82-53-744-4302 Spain - Madrid Tel: 34-91-708-08-90 Fax: 34-91-708-08-91 China - Hangzhou Tel: 86-571-2819-3187 Fax: 86-571-2819-3189 Korea - Seoul Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934 China - Hong Kong SAR Tel: 852-2943-5100 Fax: 852-2401-3431 Malaysia - Kuala Lumpur Tel: 60-3-6201-9857 Fax: 60-3-6201-9859 China - Nanjing Tel: 86-25-8473-2460 Fax: 86-25-8473-2470 Malaysia - Penang Tel: 60-4-227-8870 Fax: 60-4-227-4068 China - Qingdao Tel: 86-532-8502-7355 Fax: 86-532-8502-7205 Philippines - Manila Tel: 63-2-634-9065 Fax: 63-2-634-9069 China - Shanghai Tel: 86-21-5407-5533 Fax: 86-21-5407-5066 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 China - Shenyang Tel: 86-24-2334-2829 Fax: 86-24-2334-2393 Taiwan - Hsin Chu Tel: 886-3-5778-366 Fax: 886-3-5770-955 China - Shenzhen Tel: 86-755-8864-2200 Fax: 86-755-8203-1760 Taiwan - Kaohsiung Tel: 886-7-213-7828 Fax: 886-7-330-9305 China - Wuhan Tel: 86-27-5980-5300 Fax: 86-27-5980-5118 Taiwan - Taipei Tel: 886-2-2508-8600 Fax: 886-2-2508-0102 China - Xian Tel: 86-29-8833-7252 Fax: 86-29-8833-7256 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 UK - Wokingham Tel: 44-118-921-5869 Fax: 44-118-921-5820 China - Xiamen Tel: 86-592-2388138 Fax: 86-592-2388130 China - Zhuhai Tel: 86-756-3210040 Fax: 86-756-3210049 DS21430C-page 12 Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781 Japan - Yokohama Tel: 81-45-471- 6166 Fax: 81-45-471-6122 11/27/12 2001-2012 Microchip Technology Inc.