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| MAX809 Series, MAX810 Series Very Low Supply Current 3-Pin Microprocessor Reset Monitors The MAX809 and MAX810 are cost-effective system supervisor circuits 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 MAX810 has an active-high RESET output while the MAX809 has an active-low RESET output. The output of the MAX809 is guaranteed valid down to VCC = 1.0 V. Both devices are available in a SOT-23 package. The MAX809/810 are optimized to reject fast transient glitches on the VCC line. Low supply current of 1.0 A (VCC = 3.2 V) makes these devices suitable for battery powered applications. Features http://onsemi.com MARKING DIAGRAMS 3 1 2 3 SOT-23 (TO-236) CASE 318 1 3 See specific device marking information on page 8. 1 xx, xxx m y w = Specific Device Code = Date Code = Year = Work Week xxyw 2 xxxm 2 * 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 Supply Current VCC Transient Immunity Small SOT-23 Package No External Components Wide Operating Temperature: -40C to 105C Computers Embedded Systems Battery Powered Equipment Critical P Power Supply Monitoring VCC VCC MAX809/810 RESET RESET GND VCC PROCESSOR RESET INPUT GND PIN CONFIGURATION GND 1 3 RESET** (RESET)*** VCC 2 SOT-23* (Top View) Typical Applications NOTE: * SOT-23 is equivalent to JEDEC (TO-236) ** RESET is for MAX809 *** RESET is for MAX810 ORDERING INFORMATION Device MAX809xTR MAX809SNxxxT1 MAX810xTR Package SOT-23 SOT-23 SOT-23 Shipping 3000 Tape/Reel 3000 Tape/Reel 3000 Tape/Reel NOTE: The "x" and "xxx" denotes a suffix for Vcc voltage threshold options - see page 8 for more details. DEVICE MARKING INFORMATION Figure 1. Typical Application Diagram See general marking information in the device marking section on page 8 of this data sheet. (c) Semiconductor Components Industries, LLC, 2002 1 January, 2002 - Rev. 4 Publication Order Number: MAX809S/D MAX809 Series, MAX810 Series PIN DESCRIPTION A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAA A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAA A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAA A 1 2 2 3 GND Ground RESET (MAX809) RESET output remains low while VCC is below the reset voltage threshold, and for 240 msec (typ.) after VCC rises above reset threshold RESET output remains high while VCC is below the reset voltage threshold, and for 240 msec (typ.) after VCC rises above reset threshold Supply Voltage (typ.) RESET (MAX810) VCC Pin No. Symbol Description ABSOLUTE MAXIMUM RATINGS* (Note 1) Rating Supply Voltage (VCC to GND) RESET Input Current, VCC Output Current, RESET dV/dt (VCC) Thermal Resistance, Junction to Air Symbol VCC Value 6.0 -0.3 to (VCC + 0.3) 20 20 100 Unit V V mA mA V/sec C/W C RqJA TA 491 -40 to +105 Operating Temperature Range (Data given for MAX809 threshold levels: 1.60 V, 2.32 V, 2.93 V, 4.63 V and 4.90 V) Operating Temperature Range (Data given for MAX809 threshold levels: 2.63 V, 3.08 V, 4.00 V and 4.38 V; MAX810 threshold levels: 2.63 V, 2.93 V, 3.08 V, 4.38 V and 4.63 V) Storage Temperature Range Lead Temperature (Soldering, 10 Seconds) Latch-up performance: Positive Negative TA -40 to +85 C Tstg Tsol ILatch-up -65 to +150 +260 200 200 C C mA *Maximum Ratings are those values beyond which damage to the device may occur. 1. This device series contains ESD protection and exceeds the following tests: Human Body Model 2000 V per MIL-STD-883, Method 3015. Machine Model Method 350 V. 2. The maximum package power dissipation limit must not be exceeded. TJ(max) * TA with TJ(max) = 150C PD + RqJA ELECTRICAL CHARACTERISTICS TA = -40C to +105C unless otherwise noted. Typical values are at TA = +25C. (Note 3) The following data is given for MAX809 threshold levels: 1.60 V, 2.32 V, 2.93 V, 4.63 V and 4.90 V. Characteristic VCC Range TA = 0C to +70C TA = -40C to +105C Supply Current VCC = 3.3 V TA = -40C to +85C TA = 85C to +105C VCC = 5.5 V TA = -40C to +85C TA = 85C to +105C ICC - - - - 0.5 - 0.8 - 1.2 2.0 1.8 2.5 Symbol Min 1.0 1.2 Typ - - Max 5.5 5.5 A Unit V 3. Production testing done at TA = 25C, over temperature limits guaranteed by design. http://onsemi.com 2 MAX809 Series, MAX810 Series ELECTRICAL CHARACTERISTICS (continued) TA = -40C to +105C unless otherwise noted. Typical values are at TA = +25C. (Note 4) The following data is given for MAX809 threshold levels: 1.60 V, 2.32 V, 2.93 V, 4.63 V and 4.90 V. Characteristic Reset Threshold (Note 5) MAX809SN490 TA = +25C TA = -40C to +85C TA = +85C to +105C MAX809LTR TA = +25C TA = -40C to +85C TA = +85C to +105C MAX809STR TA = +25C TA = -40C to +85C TA = +85C to +105C MAX809SN232 TA = +25C TA = -40C to +85C TA = +85C to +105C MAX809SN160 TA = +25C TA = -40C to +85C TA = +85C to +105C Reset Temperature Coefficient VCC to Reset Delay VCC = VTH to (VTH - 100 mV) Reset Active Timeout Period RESET Output Voltage Low VCC = VTH - 0.2 V 1.6 V v VTH v 2.0 V, ISINK = 0.5 mA 2.1 V v VTH v 4.0 V, ISINK = 1.2 mA 4.1 V v VTH v 4.9 V, ISINK = 3.2 mA RESET Output Voltage High VCC = VTH + 0.2 V 1.6 V v VTH v 2.4 V, ISOURCE = 200 A 2.5 V v VTH v 4.9 V, ISOURCE = 500 A VOL Symbol VTH 4.83 4.78 4.66 4.56 4.50 4.40 2.89 2.85 2.78 2.28 2.25 2.21 1.58 1.56 1.52 - - 140 - 4.9 - - 4.63 - - 2.93 - - 2.32 - - 1.6 - - 30 10 240 - 4.97 5.02 5.14 4.70 4.75 4.86 2.96 3.00 3.08 2.35 2.38 2.45 1.62 1.64 1.68 - - 460 0.3 ppm/C sec msec V Min Typ Max Unit V VOH 0.8 VCC - - V 4. Production testing done at TA = 25C, over temperature limits guaranteed by design. 5. Contact your ON Semiconductor sales representative for other threshold voltage options. http://onsemi.com 3 MAX809 Series, MAX810 Series ELECTRICAL CHARACTERISTICS (VCC = Full Range, TA = -40C to +85C unless otherwise noted. Typical values are at TA = +25C, VCC = 5.0 V for L/M/J, 3.3 V for T/S, 3.0 V for R) (Note 6) The following data is given for MAX809 threshold levels: 2.63 V, 3.08 V, 4.00 V and 4.38 V; MAX810 threshold levels: 2.63 V, 2.93 V, 3.08 V, 4.38 V and 4.63 V. Characteristic VCC Range TA = 0C to +70C TA = -40C to +85C Supply Current MAX8xxM/MAX809J/MAX810L: VCC < 5.5 V MAX8xxR/T/MAX810S: VCC < 3.6 V Reset Threshold (Note 6) MAX810L: TA = 25C TA = -40C to +85C MAX8xxM: TA = 25C TA = -40C to +85C MAX809J: TA = 25C TA = -40C to +85C MAX8xxT: TA = 25C TA = -40C to +85C MAX810S: TA = 25C TA = -40C to +85C MAX8xxR: TA = 25C TA = -40C to +85C Reset Threshold Temperature Coefficient VCC to Reset Delay VCC = VTH to (VTH - 100 mV) Reset Active Timeout Period RESET Output Voltage Low (MAX809) MAX809R/T: VCC = VTH min, ISINK = 1.2 mA MAX809M/J: VCC = VTH min, ISINK = 3.2 mA VCC > 1.0 V, ISINK = 50 A RESET Output Voltage High (MAX809) MAX809R/T: VCC > VTH max, ISOURCE = 500 A MAX809M/J: VCC > VTH max, ISOURCE = 800 A RESET Output Voltage Low (MAX810) MAX810R/S/T: VCC = VTH max, ISINK = 1.2 mA MAX810L/M: VCC = VTH max, ISINK = 3.2 mA RESET Output Voltage High (MAX810) 1.8 < VCC < VTH min, ISOURCE = 150 A VOL - - - VOH 0.8 VCC VCC - 1.5 VOL - - VOH 0.8 VCC - - - - 0.3 0.4 V - - - - V - - - 0.3 0.4 0.3 V ICC - - VTH 4.56 4.50 4.31 4.25 3.93 3.89 3.04 3.00 2.89 2.85 2.59 2.55 - - 140 4.63 - 4.38 - 4.00 - 3.08 - 2.93 - 2.63 - 30 20 240 4.70 4.75 4.45 4.50 4.06 4.10 3.11 3.15 2.96 3.00 2.66 2.70 - - 560 ppm/C sec msec V 24 17 60 50 V Symbol Min 1.0 1.2 Typ - - Max 5.5 5.5 A Unit V 6. Production testing done at TA = 25C, over temperature limits guaranteed by design. http://onsemi.com 4 MAX809 Series, MAX810 Series APPLICATIONS INFORMATION VCC Transient Rejection The MAX809 provides accurate VCC monitoring and reset timing during power-up, power-down, and brownout/sag conditions, and rejects negative-going transients (glitches) on the power supply line. Figure 2 shows the maximum transient duration vs. maximum negative excursion (overdrive) for glitch rejection. Any combination of duration and overdrive which lies under the curve will not generate a reset signal. Combinations above the curve are detected as a brownout or power-down. Typically, transient that goes 100 mV below the reset threshold and lasts 5 s or less will not cause a reset pulse. Transient immunity can be improved by adding a capacitor in close proximity to the VCC pin of the MAX809. VCC VTH Overdrive valid to VCC = 0 V, a pull-down resistor must be connected from RESET to ground to discharge stray capacitances and hold the output low (Figure 3). This resistor value, though not critical, should be chosen such that it does not appreciably load RESET under normal operation (100 kW will be suitable for most applications). VCC VCC MAX809/810 RESET RESET GND R1 100 k Figure 3. Ensuring RESET Valid to VCC = 0 V Duration MAXIMUM TRANSIENT DURATION (sec) 120 100 80 60 40 VTH = 1.6 V 20 BUFFER Processors With Bidirectional I/O Pins VTH = 4.9 V Some P's (such as Motorola 68HC11) have bi-directional reset pins. Depending on the current drive capability of the processor pin, an indeterminate logic level may result if there is a logic conflict. This can be avoided by adding a 4.7 kW resistor in series with the output of the MAX809 (Figure 4). If there are other components in the system which require a reset signal, they should be buffered so as not to load the reset line. If the other components are required to follow the reset I/O of the P, the buffer should be connected as shown with the solid line. 0 10.0 VCC 60.0 110.0 160.0 VCC MAX809/810 4.7 k RESET RESET GND RESET GND VCC mP RESET COMPARATOR OVERDRIVE (mV) BUFFERED RESET TO OTHER SYSTEM COMPONENTS Figure 2. Maximum Transient Duration vs. Overdrive for Glitch Rejection at 25C RESET Signal Integrity During Power-Down The MAX809 RESET output is valid to VCC = 1.0 V. Below this voltage the output becomes an "open circuit" and does not sink current. This means CMOS logic inputs to the P will be floating at an undetermined voltage. Most digital systems are completely shutdown well above this voltage. However, in situations where RESET must be maintained Figure 4. Interfacing to Bidirectional Reset I/O http://onsemi.com 5 MAX809 Series, MAX810 Series TYPICAL CHARACTERISTICS The following data is given for MAX809 threshold levels: 1.60 V, 2.32 V, 2.93 V, 4.63 V and 4.90 V. 1.00 SUPPLY CURRENT IN MICROAMP 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0.00 0.5 1.5 2.5 3.5 4.5 5.5 0.00 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 VTH = 4.9 V 25C SUPPLY CURRENT (A) 1.00 25C 0.80 0.60 0.40 0.20 -40C 85C 1.20 VTH = 1.6 V 85C -40C SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) Figure 5. Supply Current vs. Supply Voltage Figure 6. Supply Current vs. Supply Voltage NORMALIZED POWER-UP RESET TIMEOUT NORMALIZED THRESHOLD VOLTAGE 1.12 1.10 1.08 1.06 1.04 1.02 1.00 0.98 -40 VTH = 4.9 V VTH = 1.6 V 1.002 1.001 1.000 0.999 0.998 0.997 0.996 0.995 0.994 0.993 0.992 -40 -20 0 20 40 60 80 VTH = 1.6 V VTH = 4.9 V -20 0 20 40 60 80 TEMPERATURE (C) TEMPERATURE (C) Figure 7. Normalized Power-Up Reset vs. Temperature Figure 8. Normalized Reset Threshold Voltage vs. Temperature http://onsemi.com 6 MAX809 Series, MAX810 Series TYPICAL CHARACTERISTICS The following data is given for MAX809 threshold levels: 2.63 V, 3.08 V, 4.00 V and 4.38 V; MAX810 threshold levels: 2.63 V, 2.93 V, 3.08 V, 4.38 V and 4.63 V. 35 30 SUPPLY CURRENT ( mA) 25 20 15 10 5 0 -40 -20 0 20 40 TEMPERATURE (C) VCC = 1 V 60 85 VCC = 3 V VCC = 5 V SUPPLY CURRENT ( mA) 30 VCC = 5 V 25 20 15 10 5 0 -40 VCC = 1 V VCC = 3 V -20 0 20 40 TEMPERATURE (C) 60 85 Figure 9. Supply Current vs. Temperature (No Load, MAX8xxR/T, MAX810S) Figure 10. Supply Current vs. Temperature (No Load, MAX8xxM/MAX809J, MAX810L) POWER-DOWN RESET DELAY ( m sec) POWER-DOWN RESET DELAY ( m sec) 100 80 60 40 20 0 -40 VOD = VTH - VCC VOD = 10 mV 140 120 100 80 60 40 20 0 -40 VOD = 200 mV -20 VOD = VTH - VCC VOD = 10 mV VOD = 20 mV VOD = 20 mV VOD = 100 mV VOD = 200 mV -20 0 20 40 TEMPERATURE (C) 60 85 VOD = 100 mV 0 20 40 TEMPERATURE (C) 60 85 Figure 11. Power-Down Reset Delay vs. Temperature and Overdrive (MAX8xxR/T, MAX810S) Figure 12. Power-Down Reset Delay vs. Temperature and Overdrive (MAX8xxM/MAX809J, MAX810L) 1.003 POWER-UP RESET TIMEOUT (msec) 250 245 240 235 230 225 -40 MAX8xxR/T MAX810S MAX810L MAX8xxM/MAX809J NORMALIZED THRESHOLD 85 1.002 1.001 1.000 0.999 0.998 0.997 -20 0 20 40 TEMPERATURE (C) 60 -40 -20 0 20 40 TEMPERATURE (C) 60 85 Figure 13. Power-Up Reset Timeout vs. Temperature Figure 14. Normalized Reset Threshold vs. Temperature http://onsemi.com 7 MAX809 Series, MAX810 Series 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 SOT-23 Carrier Width (W) 8 mm Pitch (P) 4 mm Part Per Full Reel 3000 Reel Size 7 inches MARKING AND THRESHOLD INFORMATION ON Semiconductor Part # Semicond ctor MAX809SN160T1 MAX809SN232T1 MAX809STR MAX809LTR MAX809SN490T1 MAX809MTR MAX809TTR MAX809RTR MAX809JTR MAX810MTR MAX810TTR MAX810RTR MAX810LTR MAX810STR m = Date Code y = Year w = Work Week VTH* 1.60 2.32 2.93 4.63 4.90 4.38 3.08 2.63 4.00 4.38 3.08 2.63 4.63 2.93 Push-Pull RESET Push-Pull RESET Description Marking SAAm SQPm SPTm SPWm SBHm J2yw J3yw J5yw J6yw K2yw K3yw K5yw K1yw K4yw *Contact your ON Semiconductor sales representative for other threshold voltage options. http://onsemi.com 8 MAX809 Series, MAX810 Series PACKAGE DIMENSIONS SOT-23 PLASTIC PACKAGE (TO-236) CASE 318-08 ISSUE AH 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. 318-03 AND -07 OBSOLETE, NEW STANDARD 318-08. A L 3 1 2 BS V G C D H K J DIM A B C D G H J K L S V 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 http://onsemi.com 9 MAX809 Series, MAX810 Series Notes http://onsemi.com 10 MAX809 Series, MAX810 Series Notes http://onsemi.com 11 MAX809 Series, MAX810 Series ON Semiconductor and are 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. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. PUBLICATION ORDERING INFORMATION Literature Fulfillment: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: ONlit@hibbertco.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada JAPAN: ON Semiconductor, Japan Customer Focus Center 4-32-1 Nishi-Gotanda, Shinagawa-ku, Tokyo, Japan 141-0031 Phone: 81-3-5740-2700 Email: r14525@onsemi.com ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative. http://onsemi.com 12 MAX809S/D |
Price & Availability of MAX809SN160T1
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