TC54 Series VOLTAGE DETECTOR FEATURES GENERAL DESCRIPTION Precise Detection Thresholds .... Standard 2.0% Custom 1.0% Small Packages ......3-Pin SOT-23A, 3-Pin SOT-89, 3-Pin TO-92 Low Current Drain ..................................... Typ. 1A Wide Detection Range .......................... 1.1V to 6.0V Wide Operating Voltage Range ............ 0.7V to 10V APPLICATIONS Battery Voltage Monitoring Microprocessor Reset System Brownout Protection Switching Circuit in Battery Backup Level Discriminator PIN CONFIGURATIONS *3-Pin SOT-23A 3-Pin SOT-89 3-Pin TO-92 ORDERING INFORMATION VIN 2 1 2 3 TC54 TC54 TC54 VSS VOUT 2 3 VIN VSS VOUT VOUT 1 *3-Pin SOT-23A is equivalent to EIAJ SC-59 Output form: N = Nch Open Drain C = CMOS Output 1.0% Tol. 2.0% Tol. Extra Feature Code: Fixed: 0 Tolerance: 1 = 1.0% (custom) 2 = 2.0% (standard) FUNCTIONAL BLOCK DIAGRAM 2 PART CODE TC54 V X XX X X X XX XXX Detected Voltage: Ex: 15 = 1.5V; 60 = 6.0V Ex: 11 = 1.1V; 60 = 6.0V VIN VSS 3 1 The TC54 Series are CMOS voltage detectors, suited especially for battery-powered applications because of their extremely low 1A operating current and small surfacemount packaging. Each part is laser trimmed to the desired threshold voltage which can be specified from 1.1V to 6.0V, in 0.1V steps for a 2% and 1.5V to 6.0V for a 1% tolerance. The device includes a comparator, low-current highprecision reference, laser-trimmed divider, hysteresis circuit and output driver. The TC54 is available with either an opendrain or complementary output stage. In operation, the TC54's output (VOUT) remains in the logic HIGH state as long as VIN is greater than the - specified threshold voltage (VDET ). When VIN falls below - VDET, the output is driven to a logic LOW. V OUT remains - LOW until VIN rises above VDET by an amount VHYST, whereupon it resets to a logic HIGH. TC54VC only VIN Temperature: E: - 40C to + 85C Package Type and Pin Count: CB: 3-Pin SOT-23A*, MB: 3-Pin SOT-89, ZB: 3-Pin TO-92 VOUT - 1 + VREF VSS Taping Direction: TR: Standard Taping RT: Reverse Taping No Suffix: TO-92 Bulk * 3-Pin SOT-23A is equivalent to EIAJ SC-59. 3 TC54VN has open-drain output. TC54VC has complementary output. (c) 2001 Microchip Technology Inc. DS21434A TC54-13 8/23/99 VOLTAGE DETECTOR TC54 Series * Static-sensitive device. Unused devices must be stored in conductive material. Protect devices from static discharge and static fields. 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 operational sections of the specifications is not implied. Exposure to Absolute Maximum Rating Conditions for extended periods may affect device reliability. ABSOLUTE MAXIMUM RATINGS* Supply Voltage VIN ......................................................12V Output Voltage: CMOS ............. (VSS - 0.3) to (VIN + 0.3 ) Open Drain ................ (VSS - 0.3) to 12V Output Current ......................................................... 50mA Power Dissipation: (TA 70C) 3-Pin SOT-23A ...............................................240mW 3-Pin SOT-89 .................................................. 400mW 3-Pin TO-92 .................................................... 440mW Operating Temperature .......................... - 40C to + 85C Storage Temperature ........................... - 65C to + 150C Soldering Temperature (10 sec) ............................. 300C ELECTRICAL CHARACTERISTICS: TA = 25C, unless otherwise specified. Symbol Parameter Test Conditions VIN ISS Operating Voltage Quiescent Current - VDET - VDET Threshold Voltage VHYST Hysteresis Range IOUT Output Current - TC (VDET ) Tempco of - (VDET ) Min = 0.8 to 6.0V VIN = 2.1V 3.0V 4.0V 5.0V Typ 0.7 -- VOL = 0.5V TC54VC Only: VOH = VIN - 2.1V - 40C TA 85C VIN = 2.1V 3.0V 4.0V 5.0V VIN = 8.0V - (VDET ) x 0.98 - (VDET ) x 0.02 -- -- 1.0 1.3 1.6 2.0 -- - (VDET ) x 0.05 7.7 10.1 11.5 13.0 - 10.0 100 Max Unit 10.0 3.0 3.4 3.8 4.2 - (VDET ) x 1.02 - (VDET ) x 0.08 -- V A V V mA ppm/C PIN DESCRIPTION Pin No. Symbol 1 VOUT 2 3 VIN VSS TC54-13 8/23/99 Description - Digital output. This output goes low when VIN drops below VDET and returns high when VIN - rises above VDET + VHYST. (See timing chart). Analog input. This pin is both the power supply input and the voltage to be monitored. Ground terminal. 2 (c) 2001 Microchip Technology Inc. DS21434A VOLTAGE DETECTOR TC54 Series DESCRIPTION OF OPERATION TIMING CHART + VDET VIN - DETECT VOLTAGE VDET Refer to the Timing Chart below. In normal steady-state - operation, when VIN > VDET , the output will be at a logic high. In the case of the TC54V, this is an open-drain condition. If - , the output will pull down and when the input falls below VDET (Logic 0) to VSS. Generally, VOUT can pull down to within 0.5V of VSS at rated output current and input voltage. (See the Electrical Characteristics section). The output, VOUT, will stay valid until the input voltage falls below the Minimum Operating Voltage, VIN(MIN), of 0.7V. Below this minimum operating voltage, the output is undefined. During power-up or anytime VIN has fallen below VIN (MIN), VOUT will remain undefined until VIN rises above VIN(MIN), at which time the output will become valid. VOUT + . will be in its active low state while VIN(MIN) < VIN < VDET + - (VDET = VDET + VHYST). If and when the input rises above + , the output will assume its inactive state. (High for VDET TC54VC, open-drain for TC54VN). RELEASE RESET OR VOLTAGE VOLTAGE VHYST MINIMUM OPERATING VOLTAGE GROUND LEVEL OUTPUT VOLTAGE GROUND LEVEL APPLICATIONS Refer to TelCom Semiconductor Application Note #2, Using the TC54 Voltage Detector. MARKING 3-Pin TO-92 3-Pin SOT-89 3-Pin SOT-23A 1 2 3 4 5 6 7 8 9 10 11 12 = output (Nch or CMOS) plus first voltage digit 1 2 3 4 5 6 Nch L M N P R S CMOS B C D E F H D ex: CMOS 3.x = , & = 54x (fixed) = output (C = CMOS, N = Nch) = first voltage digit (2-6) = first voltage decimal (0-9) = first voltage decimal (0-9) D 4 ex: CMOS 3.4 = = extra feature code : fixed : 0 = detecting accuracy 1 = 1.0% (custom), 2 = 2.0% (standard) & = assembly lot number , , & = assembly lot number (c) 2001 Microchip Technology Inc. DS21434A 3 TC54-13 8/23/99 VOLTAGE DETECTOR TC54 Series TAPING FORMS Component Taping Orientation for 3-Pin SOT-23A(EIAJ SC-59) Devices PIN 1 User Direction of Feed User Direction of Feed Device Marking Device Marking W PIN 1 P Standard Reel Component Orientation for TR Suffix Device (Mark Right Side Up) Reverse Reel Component Orientation for RT Suffix Device (Mark Upside Down) 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 3-Pin SOT-23A Component Taping Orientation for 3-Pin SOT-89 User Direction of Feed User Direction of Feed Device Marking Device Marking W PIN 1 P Standard Reel Component Orientation for TR Suffix Device (Mark Right Side Up) Reverse Reel Component Orientation for RT Suffix Device (Mark Upside Down) Carrier Tape, Reel Size, and Number of Components Per Reel Package 3-Pin SOT-89 TC54-13 8/23/99 Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size 12 mm 8 mm 1000 7 in 4 (c) 2001 Microchip Technology Inc. DS21434A VOLTAGE DETECTOR TC54 Series TAPING FORMS (Cont.) Component Taping Orientation for 3-Pin TO-92 Devices User Direction of Feed P Mark Face MARK FACE MARK FACE MARK FACE Cover Tape Carrier Tape W Standard Reel Component Orientation for TR Suffix Device Reverse Reel Component Orientation for RT Suffix Device Carrier Tape, Number of Components Per Reel and Reel Size Package 3-Pin TO-92 (c) 2001 Microchip Technology Inc. DS21434A Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size 18 mm 12.7 mm 1000 14 in 5 TC54-13 8/23/99 VOLTAGE DETECTOR TC54 Series TAPING FORMS (Cont.) Component Taping Orientation for 3-Pin TO-92 (Cont.) Marked Face Seal Tape Back Tape PACKAGE DIMENSIONS 3-Pin SOT-23A (EIAJ SC-59) .020 (0.50) .012 (0.30) .071 (1.80) .055 (1.40) .118 (3.00) .098 (2.50) PIN 1 .075 (1.90) REF. .122 (3.10) .106 (2.70) .051 (1.30) .035 (0.90) .010 (0.25) .004 (0.09) 10 MAX. .006 (0.15) .000 (0.00) .022 (0.55) .014 (0.35) Dimensions: inches (mm) TC54-13 8/23/99 6 (c) 2001 Microchip Technology Inc. DS21434A VOLTAGE DETECTOR TC54 Series PACKAGE DIMENSIONS (Cont.) 3-Pin SOT-89 .181 (4.60) .173 (4.39) .063 (1.60) .055 (1.40) .071 (1.80) .063 (1.60) .102 (2.59) .090 (2.29) .167 (4.24) .019 (0.48) .014 (0.36) PIN 1 .031 (0.79) MIN. .022 (0.56) .016 (0.41) .017 (0.43) .014 (0.36) .063 (1.60) .055 (1.40) 3-Pin TO-92 .165 (4.19) .125 (3.18) .210 (5.33) .170 (4.32) .500 (12.70) MIN. .205 (5.21) .175 (4.45) .105 (2.67) .080 (2.03) .105 (2.67) .095 (2.41) .018 (0.46) .015 (0.38) .135 (3.43) MIN. .055 (1.40) .045 (1.14) .018 (0.46) .015 (0.38) Dimensions: inches (mm) (c) 2001 Microchip Technology Inc. DS21434A 7 TC54-13 8/23/99 VOLTAGE DETECTOR TC54 Series WORLDWIDE SALES AND SERVICE AMERICAS New York Corporate Office 150 Motor Parkway, Suite 202 Hauppauge, NY 11788 Tel: 631-273-5305 Fax: 631-273-5335 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: 480-792-7627 Web Address: http://www.microchip.com Rocky Mountain 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7966 Fax: 480-792-7456 ASIA/PACIFIC (continued) San Jose Microchip Technology Inc. 2107 North First Street, Suite 590 San Jose, CA 95131 Tel: 408-436-7950 Fax: 408-436-7955 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-334-8870 Fax: 65-334-8850 Taiwan Atlanta 6285 Northam Drive, Suite 108 Mississauga, Ontario L4V 1X5, Canada Tel: 905-673-0699 Fax: 905-673-6509 500 Sugar Mill Road, Suite 200B Atlanta, GA 30350 Tel: 770-640-0034 Fax: 770-640-0307 Microchip Technology Taiwan 11F-3, No. 207 Tung Hua North Road Taipei, 105, Taiwan Tel: 886-2-2717-7175 Fax: 886-2-2545-0139 ASIA/PACIFIC Austin EUROPE China - Beijing Australia Analog Product Sales 8303 MoPac Expressway North Suite A-201 Austin, TX 78759 Tel: 512-345-2030 Fax: 512-345-6085 Boston 2 Lan Drive, Suite 120 Westford, MA 01886 Tel: 978-692-3848 Fax: 978-692-3821 Boston Analog Product Sales Unit A-8-1 Millbrook Tarry Condominium 97 Lowell Road Concord, MA 01742 Tel: 978-371-6400 Fax: 978-371-0050 Toronto Microchip Technology Beijing Office Unit 915 New China Hong Kong Manhattan Bldg. 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