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| MC33164-3 / MC34164-3 3V UNDERVOLTAGE SENSING CIRCUIT T HE I NFINITE P OWER OF I NNOVATION P RODUCTION D ATA S HEET DESCRIPTION The MC33164-3 and MC34164-3 are returns. The MC33164-3 and MC34164-3 undervoltage sensing circuits designed consist of a temperature stable reference specifically for use as reset controllers in comparator with hysteresis, high-current microprocessor-based systems. They offer the clamping diode and an open collector output designer an economical, space efficient solution stage capable of sinking more than 6mA over for low supply voltage detection when used in the full temperature range. The MC33164-3 combination with a single pull-up resistor. and MC34164-3's RESET output is specified to Adding one capacitor offers the functionality of be fully functional at VIN 1V. See Product a programmable delay time after power Highlight below. KEY FEATURES Monitors +3.3V Supplies (VT = 2.7V Typ) Outputs Fully Defined At VIN 1V (See Product Highlight) Ultra-Low Supply Current (13A Max.) Temperature Compensated ICC For Extremely Stable Current Consumption P Reset Delay Programmable With 1 External Resistor And Capacitor Comparator Hysteresis Prevents Output Oscillation (60mV Typ.) Electrically Compatible With Motorola MC34164-3 Pin-to-Pin Compatible With Motorola MC34064 / MC34164 APPLICATIONS All Microprocessor Or Microcontroller Designs Using 3V/3.3V Supplies Simple 3V/3.3V Undervoltage Detection IMPORTANT: For the most current data, consult MICROSEMI's website: http://www.microsemi.com PRODUCT HIGHLIGHT TA (C) 0 to 70 -40 to 85 PACKAGE ORDER INFO Plastic SOIC Plastic TO-92 DM 8-Pin LP 3-Pin RoHS Compliant / Pb-free Transition DC: 0440 RoHS Compliant / Pb-free Transition DC: 0509 MC34164-3DM MC33164-3DM MC34164-3LP MC33164-3LP Note: Available in Tape & Reel. Append the letters "TR" to the part number. (i.e. MC34164-3DM-TR) Copyright (c) 1999 Rev. 1.2a,2005-03-09 LINFINITY MICROELECTRONICS INC. 11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570 1 PRODUCT DATABOOK 1996/1997 MC33164-3/MC34164-3 3 V U N D E RV O LTA G E S E N S I N G C I R C U I T P RODUCTION D ATA S HEET ABSOLUTE MAXIMUM RATINGS (Note 1) PACKAGE PIN OUTS RESET VIN N.C. GROUND 1 2 3 4 8 7 6 5 N.C. N.C. N.C. N.C. Input Supply Voltage (VIN) ............................................................................... -1V to 12V RESET Output Voltage (VOUT) ..................................................................................... 12V Output Sink Current (IOL) ............................................................ Internally Limited (mA) Clamp Diode Forward Current (IF), Pin 1 to pin 2 ............................................... 100mA Operating Junction Temperature Plastic (DM, LP - Packages) .................................................................................. 150C Storage Temperature Range ...................................................................... -65C to 150C Lead Temperature (Soldering, 10 seconds) ............................................................. 300C Peak Package Solder Reflow Temp. (40 second max. exposure).......................................... 260C (+0, -5) Note 1. Values beyond which damage may occur. All voltages are specified with respect to ground, and all currents are positive into the specified terminal. DM PACKAGE (Top View) RoHS / Pb-free 100% Matte Tin Lead Finish 3. GROUND THERMAL DATA DM PACKAGE: THERMAL RESISTANCE-JUNCTION TO AMBIENT, JA LP PACKAGE: THERMAL RESISTANCE-JUNCTION TO AMBIENT, JA 156C/W 165C/W 2. VIN 1. RESET LP PACKAGE (Top View) Junction Temperature Calculation: TJ = TA + (PD x JA). The JA numbers are guidelines for the thermal performance of the device/pc-board system. All of the above assume no ambient airflow BLOCK DIAGRAM VIN RESET 1.2 VREF GROUND 2 Copyright (c) 1999 Rev. 1.2a 11/04 PRODUCT DATABOOK 1996/1997 MC33164-3/MC34164-3 3 V U N D E RV O LTA G E S E N S I N G C I R C U I T P RODUCTION D ATA S HEET R E C O M M E N D E D O P E R AT I N G C O N D I T I O N S Parameter Input Supply Voltage RESET Output Voltage Clamp Diode Forward Current (Note 3) Operating Ambient Temperature Range: MC34164-3 MC33164-3 Note 2. Range over which the device is guaranteed functional. Note 3. Maximum junction temperature ratings must be observed. (Note 2) Symbol VIN VOUT IF TA TA Recommended Operating Conditions Min. Typ. Max. 1 -0.3 10 10 100 70 85 Units V V mA C C 0 -40 ELECTRICAL CHARACTERISTICS (Unless otherwise specified, these specifications apply over the operating ambient temperatures of 0C TA 70C for the MC34164-3 and -40C TA 85C for the MC33164-3. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) Parameter Comparator Section Threshold Voltage High State Output Low State Output Hysteresis Symbol Test Conditions MC33164-3 / 34164-3 Units Min. Typ. Max. VT+ VTVH VIN Increasing -- 2.4V to 3.5V VIN Decreasing -- 3.5V to 2.4V (IOL = 100A) VIN = 2.4V, IOL = 8.0mA VIN = 2.4V, IOL = 1.0mA VIN = 1.0V, IOL = 0.25mA VIN , RESET = 2.4V VIN , RESET = 3.0V VIN , RESET = 10V Pin 1 to pin 2, IF = 5mA VIN = 3.0V VIN = 6.0V 2.55 2.55 0.03 2.71 2.65 0.06 0.15 0.04 0.02 24 .02 .02 0.75 9 21 2.8 2.8 V V V V V V mA A A V A A RESET Output Section Output Low Level Saturation Voltage VOL Output Low Level Current Output Off-State Leakage Clamp Diode Forward Voltage IOL IOH VF ICC 1.0 0.4 0.3 40 0.5 1.0 1.0 13 30 6.0 0.6 Total Device Supply Current Copyright (c) 1999 Rev. 1.2a 11/04 3 PRODUCT DATABOOK 1996/1997 MC33164-3/MC34164-3 3 V U N D E RV O LTA G E S E N S I N G C I R C U I T P RODUCTION D ATA S HEET GRAPH / CURVE INDEX FIGURE INDEX Characteristic Curves FIGURE # 1. 2. 3. 4. 5. 6. 7. 8. 9. INPUT VOLTAGE vs. RESET OUTPUT VOLTAGE POWER-UP RESET VOLTAGE POWER-DOWN RESET VOLTAGE RESET OUTPUT VOLTAGE vs. INPUT VOLTAGE HYSTERESIS THRESHOLD VOLTAGE vs. TEMPERATURE THRESHOLD HYSTERESIS vs. TEMPERATURE SUPPLY CURRENT vs. INPUT VOLTAGE SUPPLY CURRENT vs. TEMPERATURE LOW LEVEL OUTPUT CURRENT vs TEMPERATURE FIGURE # Application Circuits 16. LOW VOLTAGE MICROPROCESSOR RESET 17. SWITCHING THE LOAD OFF WHEN BATTERY REACHES BELOW 2.7V 18. VOLTAGE MONITOR 19. SOLAR POWERED BATTERY CHARGER 10. LOW LEVEL OUTPUT SATURATION VOLTAGE vs. TEMPERATURE 11. LOW LEVEL OUTPUT SATURATION VOLTAGE vs. TEMPERATURE 12. CLAMP DIODE FORWARD VOLTAGE vs. FORWARD CURRENT 13. PROPAGATION DELAY -- HIGH to LOW 14. PROPAGATION DELAY -- LOW to HIGH 15. MINIMUM OPERATING VOLTAGE OVER TEMPERATURE 4 Copyright (c) 1999 Rev. 1.2a 11/04 PRODUCT DATABOOK 1996/1997 MC33164-3/MC34164-3 3 V U N D E RV O LTA G E S E N S I N G C I R C U I T P RODUCTION D ATA S HEET CHARACTERISTIC CURVES FIGURE 1. -- INPUT VOLTAGE and RESET OUTPUT VOLTAGE vs. TIME 10 FIGURE 2. -- POWER-UP RESET VOLTAGE 2.0 RESET - (V) 7.5 5 2.5 0 RL = 82k Power-Up RESET Voltage - (V) TA = 25C 1.8 1.6 1.4 1.2 1.0 RL = 10kohms TA = 25C VIN 0.8 0.6 10 VIN - (V) 7.5 5 2.5 0 0 .2 .4 .6 .8 1.0 1.2 1.4 1.6 1.8 2.0 RESET 0.4 0.2 0 0 0.4 0.8 1.2 1.6 2.0 (t) Time - (ms) (t) Time - (ms) FIGURE 3. -- POWER-DOWN RESET VOLTAGE 2.0 1.8 FIGURE 4. -- RESET OUTPUT VOLTAGE vs. INPUT VOLTAGE 3.00 (VOUT) RESET Output Voltage - (V) Power-Down RESET Voltage - (V) RL = 10kohms TA = 25C 1.6 1.4 1.2 1.0 2.50 2.00 RL = 82kW TA = 25C 1.50 VIN 0.8 0.6 0.4 1.00 RESET 0.2 0 0 0.4 0.8 1.2 1.6 2.0 0.50 0 2.63 2.65 2.67 2.69 2.71 2.73 (t) Time - (ms) (VIN) Input Voltage - (V) Copyright (c) 1999 Rev. 1.2a 11/04 5 PRODUCT DATABOOK 1996/1997 MC33164-3/MC34164-3 3 V U N D E RV O LTA G E S E N S I N G C I R C U I T P RODUCTION D ATA S HEET CHARACTERISTIC CURVES FIGURE 5. -- THRESHOLD VOLTAGE vs. TEMPERATURE 2.800 2.775 FIGURE 6. -- THRESHOLD HYSTERESIS vs. TEMPERATURE 100 90 (VT) Threshold Voltage - (V) 2.750 2.725 2.700 2.675 2.650 2.625 2.600 2.575 2.550 -50 (VH) Threshold Hysteresis - (mV) 80 70 60 50 40 30 20 10 0 -50 VT+ High Threshold Voltage VT- Low Threshold Voltage -25 0 25 50 75 100 -25 0 25 50 75 100 (TA) Ambient Temperature - (C) (TA) Ambient Temperature - (C) FIGURE 7. -- SUPPLY CURRENT vs. INPUT VOLTAGE 200 FIGURE 8. -- SUPPLY CURRENT vs. TEMPERATURE 25.0 160 (IIN) Quiescent Input Current - (A) 180 RL = No Load TA = 25C No Load 20.0 (IIN) Input Current - (A) VIN = 6V 140 120 100 80 60 40 20 0 0 2 4 6 8 10 15.0 10.0 VIN = 3V 5.0 0.0 -50 -25 0 25 50 75 100 (VIN) Input Voltage - (V) (TA) Ambient Temperature - (C) 6 Copyright (c) 1999 Rev. 1.2a 11/04 PRODUCT DATABOOK 1996/1997 MC33164-3/MC34164-3 3 V U N D E RV O LTA G E S E N S I N G C I R C U I T P RODUCTION D ATA S HEET CHARACTERISTIC CURVES FIGURE 9. -- LOW LEVEL OUTPUT CURRENT vs. TEMPERATURE 40 FIGURE 10. -- LOW LEVEL OUTPUT SATURATION VOLTAGE vs. TEMPERATURE 100 VIN = VOUT = 2.4V (ISINK) Output Sink Current - (mA) 35 30 25 20 15 10 5 0 -50 (VOL) Output Sink Saturation - (mV) 90 80 70 60 50 40 30 20 10 0 -50 VIN = 2.4V IOUT = 1mA -25 0 25 50 75 100 -25 0 25 50 75 100 (TA) Ambient Temperature - (C) (TA) Ambient Temperature - (C) FIGURE 11. -- LOW LEVEL OUTPUT SATURATION VOLTAGE vs. TEMPERATURE 50 FIGURE 12. -- CLAMP DIODE FORWARD VOLTAGE vs. FORWARD CURRENT -1.6 (VF) Clamp Diode Forward Voltage - (V) (VOL) Output Sink Saturation - (mV) 45 40 35 30 25 20 15 10 5 0 -50 VIN = 1V IOUT = 250A -1.5 -1.4 -1.3 -1.2 -1.1 -1 25C -0.9 -0.8 85C -0.7 -0.6 -40C -25 0 25 50 75 100 0 10 20 30 40 50 60 70 80 90 100 (TA) Ambient Temperature - (C) (IF) Diode Forward Current - (mA) Copyright (c) 1999 Rev. 1.2a 11/04 7 PRODUCT DATABOOK 1996/1997 MC33164-3/MC34164-3 3 V U N D E RV O LTA G E S E N S I N G C I R C U I T P RODUCTION D ATA S HEET CHARACTERISTIC CURVES FIGURE 13. -- PROPAGATION DELAY -- HIGH to LOW VIN FIGURE 14. -- PROPAGATION DELAY -- LOW to HIGH 5.5 TA = 25C 3.5V 2.4V 10K RESET VIN - (V) 3.0 REF VIN - (V) 4.0 TA = 25C 4.0 3.0 2.0 2.0 2.5 2.5 RESET - (V) 1.5 0.5 0 -0.5 0 .5 1 1.5 2 2.5 3 3.5 4 4.5 5 RESET - (V) 1.5 0.5 0 -0.5 0 2 4 6 8 10 VIN 3.5V 2.4V 10K RESET REF 12 14 16 18 20 (t) Time - (s) (t) Time - (s) FIGURE 15. -- MINIMUM OPERATING VOLTAGE OVER TEMPERATURE 1.000 (VIN-MIN.) Minimum Operating Voltage - (V) 0.950 0.900 0.850 0.800 0.750 0.700 0.650 0.600 0.550 0.500 -50 VIN = Ramp Down IOUT = 250A -25 0 25 50 75 100 (TA) Ambient Temperature - (C) 8 Copyright (c) 1999 Rev. 1.2a 11/04 PRODUCT DATABOOK 1996/1997 MC33164-3/MC34164-3 3 V U N D E RV O LTA G E S E N S I N G C I R C U I T P RODUCTION D ATA S HEET T Y P I C A L A P P L I C AT I O N C I R C U I T S FIGURE 16. -- LOW VOLTAGE MICROPROCESSOR RESET FIGURE 17. -- SWITCHING THE LOAD OFF WHEN BATTERY REACHES BELOW 2.7V VIN Power Supply RESET CDLY R Microprocessor Circuit VIN RESET Load 1.2 VREF A time delayed reset can be accomplished with the addition of CDLY. For systems with extremely fast power supply rise times (< 500ns) it is recommended that the RCDLY time constant be greater than 5.0s. VTH(MPU) is the microprocessor reset input threshold. 1.2VREF tDLY = R CDLY In 1 VTH(MPU) 1- V IN FIGURE 18. -- VOLTAGE MONITOR FIGURE 20. -- SOLAR POWERED BATTERY CHARGER 1.0k VIN Power Supply RESET VIN RESET SOLAR CELLS 1.2VREF 1.2VREF LED turns on when VIN < 2.7V indicating Power Supply is low. PRODUCTION DATA - Information contained in this document is proprietary to LinFinity, and is current as of publication date. This document may not be modified in any way without the express written consent of LinFinity. Product processing does not necessarily include testing of all parameters. Linfinity reserves the right to change the configuration and performance of the product and to discontinue product at any time. Copyright (c) 1999 Rev. 1.2a 11/04 9 |
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