NCP803 Very Low Supply Current 3−Pin Microprocessor Reset Monitor The NCP803 is a cost−effective system supervisor circuit designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. No external components are required. The reset output is driven active within 10 sec of VCC falling through the reset voltage threshold. Reset is maintained active for a minimum of 140 msec after VCC rises above the reset threshold. The NCP803 has an open drain active−low RESET output. The output of the NCP803 is guaranteed valid down to VCC = 1.0 V and is available in a SOT−23 package. The NCP803 is optimized to reject fast transient glitches on the VCC line. Low supply current of 1.0 A (VCC = 3.2 V) make this device suitable for battery powered applications. http://onsemi.com MARKING DIAGRAM 3 3 SOT−23 (TO−236) CASE 318 1 xxxM 1 2 xxx M 2 = Specific Device Code = Date Code = Pb−Free Package Features • Precision VCC Monitor for 2.5 V, 3.0 V, 3.3 V, and 5.0 V Supplies • Precision Monitoring Voltages from 1.6 V to 4.9 V Available • • • • • • • • in 100 mV Steps 140 msec Guaranteed Minimum RESET Output Duration RESET Output Guaranteed to VCC = 1.0 V Low 1.0 µA Supply Current VCC Transient Immunity Small SOT−23 Package No External Components Wide Operating Temperature: −40°C to 105°C Pb−Free Packages are Available PIN CONFIGURATION GND 1 3 RESET VCC 2 SOT−23 (Top View) NOTE: SOT−23 is equivalent to JEDEC (TO−236) Typical Applications • • • • ORDERING INFORMATION Computers Embedded Systems Battery Powered Equipment Critical µP Power Supply Monitoring Device NCP803SNxxxT1 NCP803SNxxxT3 SOT−23 3000/Tape & Reel NCP803 C = 100 nF NCP803SNxxxT3G SOT−23 10000/Tape & Reel (Pb−Free) µP †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. RESET GND SOT−23 10000/Tape & Reel VCC Rpull−up RESET Shipping† NCP803SNxxxT1G SOT−23 3000/Tape & Reel (Pb−Free) VCC VCC Package GND 0 NOTE: The “xxx” denotes a suffix for Vcc voltage threshold options − see page 5 for more details. 0 Figure 1. Typical Application Diagram *The “T3” suffix refers to a 13 inch reel. DEVICE MARKING INFORMATION See general marking information in the device marking section on page 5 of this data sheet. Semiconductor Components Industries, LLC, 2005 April, 2005 − Rev. 5 1 Publication Order Number: NCP803/D NCP803 PIN DESCRIPTION ÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. Symbol 1 GND 2 RESET 3 VCC Description Ground RESET output remains low while VCC is below the reset voltage threshold, and for 240 msec (typ.) after VCC rises above reset threshold. Supply Voltage: C = 100 nF is recommended as a bypass capacitor between VCC and GND. ABSOLUTE MAXIMUM RATINGS (Note 1) Rating Symbol Value Unit VCC 6.0 V −0.3 to (VCC + 0.3) V Input Current, VCC 20 mA Output Current, RESET 20 mA Supply Voltage (VCC to GND) RESET dV/dt (VCC) 100 V/µsec RJA 491 °C/W Operating Temperature Range TA −40 to +105 °C Storage Temperature Range Tstg −65 to +150 °C Lead Temperature (Soldering, 10 Seconds) Tsol +260 °C Thermal Resistance, Junction to Air Latch−up performance: ILatch−up Negative mA 150 Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 1. This device series contains ESD protection and exceeds the following tests: Human Body Model 4000 V per MIL−STD−883, Method 3015. Machine Model Method 400 V. 2. The maximum package power dissipation limit must not be exceeded. TJ(max) TA with TJ(max) = 150°C PD RJA http://onsemi.com 2 NCP803 ELECTRICAL CHARACTERISTICS TA = −40°C to +105°C unless otherwise noted. Typical values are at TA = +25°C. (Note 3) Symbol Characteristic VCC Range TA = 0°C to +70°C TA = −40°C to +105°C Min Typ Max 1.0 1.2 − − 5.5 5.5 Unit V Supply Current VCC = 3.3 V TA = −40°C to +85°C TA = 85°C to +105°C VCC = 5.5 V TA = −40°C to +85°C TA = 85°C to +105°C ICC Reset Threshold (Note 4) VTH µA − − 0.5 − 1.2 2.0 − − 0.8 − 1.8 2.5 V NCP803SN463 TA = +25°C TA = −40°C to +85°C TA = +85°C to +105°C 4.56 4.51 4.40 4.63 − − 4.70 4.75 4.88 NCP803SN438 TA = +25°C TA = −40°C to +85°C TA = +85°C to +105°C 4.31 4.27 4.16 4.38 − − 4.45 4.49 4.60 NCP803SN308 TA = +25°C TA = −40°C to +85°C TA = +85°C to +105°C 3.04 3.00 2.92 3.08 − − 3.11 3.15 3.23 NCP803SN293 TA = +25°C TA = −40°C to +85°C TA = +85°C to +105°C 2.89 2.85 2.78 2.93 − − 2.96 3.00 3.08 NCP803SN263 TA = +25°C TA = −40°C to +85°C TA = +85°C to +105°C 2.59 2.55 2.50 2.63 − − 2.66 2.70 2.76 NCP803SN232 TA = +25°C TA = −40°C to +85°C TA = +85°C to +105°C 2.29 2.26 2.20 2.32 − − 2.35 2.38 2.45 NCP803SN160 TA = +25°C TA = −40°C to +85°C TA = +85°C to +105°C 1.58 1.56 1.52 1.60 − − 1.62 1.64 1.68 Reset Temperature Coefficient − 30 − VCC to Reset Delay VCC = VTH to (VTH − 100 mV) − 10 − µsec 140 240 460 msec VOL − − 0.3 V ILEAK − − 1 µA Reset Active Timeout Period RESET Output Voltage Low VCC = VTH − 0.2 V 1.6 V VTH 2.0 V, ISINK = 0.5 mA 2.1 V VTH 4.0 V, ISINK = 1.2 mA 4.1 V VTH 4.9 V, ISINK = 3.2 mA RESET Leakage Current VCC VTH, RESET De−asserted 3. Production testing done at TA = 25°C, over temperature limits guaranteed by design. 4. Contact your ON Semiconductor sales representative for other threshold voltage options. http://onsemi.com 3 ppm/°C NCP803 TYPICAL CHARACTERISTICS 1.8 1.4 VTH = 1.60 V 1.2 105°C SUPPLY CURRENT (A) SUPPLY CURRENT (A) 1.6 1.4 1.2 85°C 1.0 25°C 0.8 0.6 0°C 0.4 −40°C 85°C 1.0 0.8 25°C 0.6 0°C 0.4 −40°C 0.2 0.2 0 0.5 1.5 2.5 3.5 4.5 0 0.5 5.5 1.5 2.5 SUPPLY VOLTAGE (V) 105°C VTH = 4.90 V 1.2 0.999 85°C 1.0 VTH = 1.60 V 1.000 NORMALIZED VTH VOLTAGE SUPPLY CURRENT (A) 5.5 1.001 VTH = 3.08 V 0.998 VTH = 4.90 V 0.997 0.8 0°C 0.6 25°C 0.996 0.995 0.4 −40°C 0.2 0 0.5 1.5 2.5 3.5 4.5 0.994 0.993 −40 5.5 −20 0 20 40 60 80 100 120 SUPPLY VOLTAGE (V) TEMPERATURE (°C) Figure 4. Supply Current vs. Supply Voltage Figure 5. Normalized Reset Threshold Voltage vs. Temperature POWER−DOWN RESET TIMEOUT (S) 280 POWER−UP RESET TIMEOUT (mS) 4.5 Figure 3. Supply Current vs. Supply Voltage 1.6 270 260 250 VTH = 4.90 V 240 230 VTH = 3.08 V 220 VTH = 1.60 V 210 200 −40 3.5 SUPPLY VOLTAGE (V) Figure 2. Supply Current vs. Supply Voltage 1.4 105°C VTH = 3.08 V −20 0 20 40 60 80 100 120 350 300 VTH = 4.90 V 250 200 150 100 VTH = 3.08 V 50 0 −40 VTH = 1.60 V −20 0 20 40 60 80 TEMPERATURE (°C) TEMPERATURE (°C) Figure 6. Power−up Reset Timeout vs. Temperature Figure 7. Power−down Reset Timeout vs. Temperature (Overdrive = 20 mV) http://onsemi.com 4 100 NCP803 TAPING FORM Component Taping Orientation for 3L SOT−23 (JEDEC−236) Devices USER DIRECTION OF FEED DEVICE MARKING PIN 1 Standard Reel Component Orientation (Mark Right Side Up) Tape & Reel Specifications Table Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size SOT−23 8 mm 4 mm 3000 7 inches SOT−23 8 mm 4 mm 10000 13 inches MARKING AND THRESHOLD INFORMATION Semicond ctor Part # ON Semiconductor VTH* Marking (Note 5) NCP803SN160T1 1.60 SCQM NCP803SN160T1G 1.60 SCQM NCP803SN232T1 2.32 SQRM NCP803SN232T1G 2.32 SQRM NCP803SN263T1 2.63 SQCM NCP803SN263T1G 2.63 SQCM NCP803SN293T1 2.93 SQDM NCP803SN293T1G 2.93 SQDM NCP803SN293T3 2.93 SQDM NCP803SN293T3G 2.93 SQDM NCP803SN308T1 3.08 SQEM NCP803SN308T1G 3.08 SQEM NCP803SN438T1 4.38 SQFM NCP803SN438T1G 4.38 SQFM NCP803SN463T1 4.63 SQGM NCP803SN463T1G 4.63 SQGM NOTE: The “G” suffix indicates Pb−Free package available. *Contact your ON Semiconductor sales representative for other threshold voltage options. 5. M = Monthly Date Code http://onsemi.com 5 NCP803 PACKAGE DIMENSIONS SOT−23 (TO−236) CASE 318−08 ISSUE AL NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS. MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL. 4. 318−01 THRU −07 AND −09 OBSOLETE, NEW STANDARD 318−08. A L 3 1 V B S 2 DIM A B C D G H J K L S V G C D H K J INCHES MIN MAX 0.1102 0.1197 0.0472 0.0551 0.0350 0.0440 0.0150 0.0200 0.0701 0.0807 0.0005 0.0040 0.0034 0.0070 0.0140 0.0285 0.0350 0.0401 0.0830 0.1039 0.0177 0.0236 MILLIMETERS MIN MAX 2.80 3.04 1.20 1.40 0.89 1.11 0.37 0.50 1.78 2.04 0.013 0.100 0.085 0.177 0.35 0.69 0.89 1.02 2.10 2.64 0.45 0.60 STYLE 8: PIN 1. ANODE 2. NO CONNECTION 3. CATHODE SOLDERING FOOTPRINT* 0.95 0.037 0.95 0.037 2.0 0.079 0.9 0.035 0.8 0.031 SCALE 10:1 mm inches *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. 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American Technical Support: 800−282−9855 Toll Free USA/Canada ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder Japan: ON Semiconductor, Japan Customer Focus Center 2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051 Phone: 81−3−5773−3850 http://onsemi.com 6 For additional information, please contact your local Sales Representative. NCP803/D