MC34164-3DM

MC33164-3 / MC34164-3 3V UNDERVOLTAGE SENSING CIRCUIT T H E I N F I N I T E P O W E R O F I N N O V A T I O N P R O D U C T I O N D 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. A T A S H E E T KEY FEATURES „ Monitors +3.3V Supplies (VT = 2.7V Typ) „ Outputs Fully Defined At VIN ≥ 1V (See Product Highlight) „ Ultra-Low Supply Current (13µA Max.) „ Temperature Compensated ICC „ „ „ „ For Extremely Stable Current Consumption µP 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 IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com Microcontroller Designs Using 3V/3.3V Supplies „ Simple 3V/3.3V Undervoltage Detection 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 © 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 R O D U C T I O N ABSOLUTE MAXIMUM RATINGS D A T A S H E E T PACKAGE PIN OUTS (Note 1) 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) .................................................................................. 150°C Storage Temperature Range ...................................................................... -65°C to 150°C Lead Temperature (Soldering, 10 seconds) ............................................................. 300°C RESET VIN N.C. GROUND 1 2 3 4 N.C. N.C. N.C. N.C. 8 7 6 5 DM PACKAGE (Top View) RoHS / Pb-free 100% Matte Tin Lead Finish Peak Package Solder Reflow Temp. (40 second max. exposure).......................................... 260°C (+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. 3. GROUND 2. VIN THERMAL DATA 1. RESET DM PACKAGE: THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA 165°C/W LP PACKAGE (Top View) LP PACKAGE: THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA 156°C/W Junction Temperature Calculation: TJ = TA + (PD x θJA). The θJA 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 © 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 D R O D U C T I O N A T A S H E E T 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 Symbol Input Supply Voltage RESET Output Voltage Clamp Diode Forward Current (Note 3) Operating Ambient Temperature Range: MC34164-3 MC33164-3 (Note 2) Recommended Operating Conditions Min. Typ. Max. Units VIN VOUT IF 1 -0.3 10 10 100 V V mA TA TA 0 -40 70 85 °C °C Note 2. Range over which the device is guaranteed functional. Note 3. Maximum junction temperature ratings must be observed. ELECTRICAL CHARACTERISTICS (Unless otherwise specified, these specifications apply over the operating ambient temperatures of 0°C ≤ TA ≤ 70°C for the MC34164-3 and -40°C ≤ TA ≤ 85°C for the MC33164-3. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) Parameter Symbol Test Conditions MC33164-3 / 34164-3 Units Min. Typ. Max. Comparator Section Threshold Voltage High State Output Low State Output Hysteresis VT+ VTVH VIN Increasing — 2.4V to 3.5V VIN Decreasing — 3.5V to 2.4V (IOL = 100µA) 2.55 2.55 0.03 2.71 2.65 0.06 2.8 2.8 V V V 6.0 0.15 0.04 0.02 24 .02 .02 0.75 1.0 0.4 0.3 40 0.5 1.0 1.0 V V V mA µA µA V 9 21 13 30 µA µA RESET Output Section Output Low Level Saturation Voltage VOL Output Low Level Current Output Off-State Leakage IOL IOH Clamp Diode Forward Voltage VF 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 0.6 Total Device Supply Current Copyright © 1999 Rev. 1.2a 11/04 ICC VIN = 3.0V VIN = 6.0V 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 R O D U C T I O N D A T A S GRAPH / CURVE INDEX H E E T FIGURE INDEX Characteristic Curves Application Circuits FIGURE # FIGURE # 1. INPUT VOLTAGE vs. RESET OUTPUT VOLTAGE 16. LOW VOLTAGE MICROPROCESSOR RESET 2. POWER-UP RESET VOLTAGE 17. SWITCHING THE LOAD OFF WHEN BATTERY REACHES BELOW 2.7V 3. POWER-DOWN RESET VOLTAGE 18. VOLTAGE MONITOR 4. RESET OUTPUT VOLTAGE vs. INPUT VOLTAGE HYSTERESIS 19. SOLAR POWERED BATTERY CHARGER 5. THRESHOLD VOLTAGE vs. TEMPERATURE 6. THRESHOLD HYSTERESIS vs. TEMPERATURE 7. SUPPLY CURRENT vs. INPUT VOLTAGE 8. SUPPLY CURRENT vs. TEMPERATURE 9. LOW LEVEL OUTPUT CURRENT vs TEMPERATURE 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 © 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 R O D U C T I O N D CHARACTERISTIC FIGURE 1. — INPUT VOLTAGE and RESET OUTPUT VOLTAGE vs. TIME CURVES 2.0 RL = 82k 7.5 RL = 10kohms TA = 25°C 1.8 TA = 25°C Power-Up RESET Voltage - (V) RESET - (V) H E E T FIGURE 2. — POWER-UP RESET VOLTAGE 10 5 2.5 0 10 VIN - (V) S A T A 7.5 5 2.5 1.6 1.4 1.2 1.0 VIN 0.8 0.6 RESET 0.4 0.2 0 0 0 .2 .4 .6 .8 1.0 1.2 1.4 1.6 1.8 2.0 0 0.4 0.8 (t) Time - (ms) 1.6 2.0 (t) Time - (ms) FIGURE 3. — POWER-DOWN RESET VOLTAGE FIGURE 4. — RESET OUTPUT VOLTAGE vs. INPUT VOLTAGE 3.00 2.0 (VOUT) RESET Output Voltage - (V) RL = 10kohms TA = 25°C 1.8 Power-Down RESET Voltage - (V) 1.2 1.6 1.4 1.2 1.0 VIN 0.8 0.6 0.4 RESET 2.50 RL = 82k TA = 25°C 2.00 1.50 1.00 0.50 0.2 0 0 0 0.4 0.8 1.2 (t) Time - (ms) Copyright © 1999 Rev. 1.2a 11/04 1.6 2.0 2.63 2.65 2.67 2.69 2.71 2.73 (VIN) Input Voltage - (V) 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 R O D U C T I O N D CHARACTERISTIC CURVES 2.800 100 2.775 90 2.750 2.725 VT+ High Threshold Voltage 2.700 2.675 VT- Low Threshold Voltage 2.650 2.625 2.600 80 70 60 50 40 30 20 10 2.575 2.550 -50 -25 0 25 50 75 0 -50 100 0 25 50 75 100 FIGURE 8. — SUPPLY CURRENT vs. TEMPERATURE FIGURE 7. — SUPPLY CURRENT vs. INPUT VOLTAGE 200 25.0 No Load (IIN) Quiescent Input Current - (µA) RL = No Load TA = 25°C 180 160 (IIN) Input Current - (µA) -25 (TA) Ambient Temperature - (°C) (TA) Ambient Temperature - (°C) 140 120 100 80 60 40 20 0 0 2 4 6 (VIN) Input Voltage - (V) 6 H E E T FIGURE 6. — THRESHOLD HYSTERESIS vs. TEMPERATURE (VH) Threshold Hysteresis - (mV) (VT) Threshold Voltage - (V) FIGURE 5. — THRESHOLD VOLTAGE vs. TEMPERATURE S A T A 8 10 20.0 VIN = 6V 15.0 VIN = 3V 10.0 5.0 0.0 -50 -25 0 25 50 75 100 (TA) Ambient Temperature - (°C) Copyright © 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 R O D U C T I O N D CHARACTERISTIC FIGURE 9. — LOW LEVEL OUTPUT CURRENT vs. TEMPERATURE CURVES 100 (VOL) Output Sink Saturation - (mV) VIN = VOUT = 2.4V (ISINK) Output Sink Current - (mA) H E E T FIGURE 10. — LOW LEVEL OUTPUT SATURATION VOLTAGE vs. TEMPERATURE 40 35 30 25 20 15 10 5 0 -50 S A T A -25 0 25 50 75 VIN = 2.4V IOUT = 1mA 90 80 70 60 50 40 30 20 10 0 -50 100 -25 (TA) Ambient Temperature - (°C) (VF) Clamp Diode Forward Voltage - (V) (VOL) Output Sink Saturation - (mV) 75 100 -1.6 VIN = 1V IOUT = 250µA 40 35 30 25 20 15 10 5 -1.5 -1.4 -1.3 -1.2 -40°C -1.1 -1 25°C -0.9 -0.8 85°C -0.7 -0.6 -25 0 25 50 75 (TA) Ambient Temperature - (°C) Copyright © 1999 Rev. 1.2a 11/04 50 FIGURE 12. — CLAMP DIODE FORWARD VOLTAGE vs. FORWARD CURRENT 50 0 -50 25 (TA) Ambient Temperature - (°C) FIGURE 11. — LOW LEVEL OUTPUT SATURATION VOLTAGE vs. TEMPERATURE 45 0 100 0 10 20 30 40 50 60 70 80 90 100 (IF) Diode Forward Current - (mA) 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 R O D U C T I O N D A T A CHARACTERISTIC FIGURE 13. — PROPAGATION DELAY — HIGH to LOW 5.5 2.4V TA = 25°C VIN - (V) RESET REF 3.0 4.0 3.0 2.0 2.0 2.5 2.5 RESET - (V) VIN - (V) RESET - (V) CURVES 10K 3.5V 4.0 H E E T FIGURE 14. — PROPAGATION DELAY — LOW to HIGH VIN TA = 25°C S 1.5 0.5 0 VIN 1.5 10K 3.5V 2.4V RESET 0.5 REF 0 -0.5 -0.5 0 .5 1 1.5 2 2.5 3 3.5 4 4.5 5 (t) Time - (µs) 0 2 4 6 8 10 12 14 16 18 20 (t) Time - (µs) FIGURE 15. — MINIMUM OPERATING VOLTAGE OVER TEMPERATURE (VIN-MIN.) Minimum Operating Voltage - (V) 1.000 0.950 VIN = Ramp Down IOUT = 250µA 0.900 0.850 0.800 0.750 0.700 0.650 0.600 0.550 0.500 -50 -25 0 25 50 75 100 (TA) Ambient Temperature - (°C) 8 Copyright © 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 R O D U C T I O N D A T A S H E E T 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 R VIN RESET Power Supply Microprocessor Circuit CDLY Load VIN RESET 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 5.0µs. VTH(MPU) is the microprocessor reset input threshold. tDLY = R CDLY In 1.2VREF 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 © 1999 Rev. 1.2a 11/04 9