UNDERVOLTAGE SENSING CIRCUI DESCRIPTION MC33164-3 MC34164-3 retur

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UNDERVOLTAGE SENSING CIRCUI DESCRIPTION MC33164-3 MC34164-3 retur

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MC33164-3 MC34164-3
UNDERVOLTAGE SENSING CIRCUI
DESCRIPTION MC33164-3 MC34164-3 returns. MC33164-3 MC34164-3 undervoltage sensing circuits designed consist temperature stable reference specifically reset controllers comparator with hysteresis, high-current microprocessor-based systems. They offer clamping diode open collector output designer economical, space efficient solution stage capable sinking more than over supply voltage detection when used full temperature range. MC33164-3 combination with single pull-up resistor. MC34164-3's RESET output specified Adding capacitor offers functionality fully functional Product programmable delay time after power Highlight below.
FEATURES
Monitors +3.3V Supplies 2.7V Typ) Outputs Fully Defined (See Product Highlight) Ultra-Low Supply Current (13µA Max.) Temperature Compensated Extremely Stable Current Consumption Reset Delay Programmable With External Resistor Capacitor Comparator Hysteresis Prevents Output Oscillation (60mV Typ.) Electrically Compatible With Motorola MC34164-3 Pin-to-Pin Compatible With Motorola MC34064 MC34164
APPLICATIONS
Microprocessor Microcontroller Designs Using 3V/3.3V Supplies Simple 3V/3.3V Undervoltage Detection
IMPORTANT: most current data, consult MICROSEMI's website: http://www.microsemi.com
PRODUCT HIGHLIGH
(°C)
PACKAGE ORDER INFO Plastic SOIC Plastic TO-92 8-Pin 3-Pin
RoHS Compliant Pb-free Transition 0440 RoHS Compliant Pb-free Transition 0509
MC34164-3DM MC33164-3DM
MC34164-3LP MC33164-3LP
Note: Available Tape Reel. Append letters "TR" part number. (i.e. MC34164-3DM-TR)
Copyright 1999 Rev. 1.2a,2005-03-09
LINFINITY MICROELECTRONICS INC.
11861 WESTERN AVENUE, GARDEN GROVE, 92841, 714-898-8121, FAX: 714-893-2570
PRODUCT DATABOOK 1996/1997
MC33164-3/MC34164-3
ABSOLUTE MAXIMUM RATINGS
(Note
PACKAGE OUTS
RESET N.C. GROUND N.C. N.C. N.C. N.C.
Input Supply Voltage (VIN) RESET Output Voltage (VOUT) Output Sink Current (IOL) Internally Limited (mA) Clamp Diode Forward Current (IF), 100mA Operating Junction Temperature Plastic (DM, Packages) 150°C Storage Temperature Range -65°C 150°C Lead Temperature (Soldering, seconds) 300°C
Peak Package Solder Reflow Temp. second max. exposure). 260°C (+0, Note Values beyond which damage occur. voltages specified with respect ground, currents positive into specified terminal.
PACKAGE (Top View)
RoHS Pb-free 100% Matte Lead Finish
GROUND
THERMAL DATA
PACKAGE: THERMAL RESISTANCE-JUNCTION AMBIENT, PACKAGE: THERMAL RESISTANCE-JUNCTION AMBIENT, 156°C/W 165°C/W
RESE
PACKAGE (Top View)
Junction Temperature Calculation: JA). numbers guidelines thermal performance device/pc-board system. above assume ambient airflow
BLOCK DIAGRAM
RESE
VREF
GROUND
Copyright 1999 Rev. 1.2a 11/04
PRODUCT DATABOOK 1996/1997
MC33164-3/MC34164-3
Parameter
Input Supply Voltage RESET Output Voltage Clamp Diode Forward Current (Note Operating Ambient Temperature Range: MC34164-3 MC33164-3 Note Range over which device guaranteed functional. Note Maximum junction temperature ratings must observed.
(Note
Symbol
VOUT
Recommended Operating Conditions Min. Typ. Max.
-0.3
Units
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply over operating ambient temperatures 70°C MC34164-3 -40°C 85°C MC33164-3. duty cycle pulse testing techniques used which maintains junction case temperatures equal ambient temperature.)
Parameter Comparator Section
Threshold Voltage High State Output State Output Hysteresis
Symbol
Test Conditions
MC33164-3 34164-3 Units Min. Typ. Max.
VTVH
Increasing 2.4V 3.5V Decreasing 3.5V 2.4V (IOL 100µA) 2.4V, 8.0mA 2.4V, 1.0mA 1.0V, 0.25mA RESET 2.4V RESET 3.0V RESET 3.0V 6.0V
2.55 2.55 0.03
2.71 2.65 0.06 0.15 0.04 0.02 0.75
RESET Output Section
Output Level Saturation Voltage Output Level Current Output Off-State Leakage Clamp Diode Forward Voltage
Total Device
Supply Current
Copyright 1999 Rev. 1.2a 11/04
PRODUCT DATABOOK 1996/1997
MC33164-3/MC34164-3
GRAPH CURVE INDEX
FIGURE INDEX
Characteristic Curves
FIGURE INPUT VOLTAGE RESET OUTPUT VOLTAGE POWER-UP RESET VOLTAGE POWER-DOWN RESET VOLTAGE RESET OUTPUT VOLTAGE INPUT VOLTAGE HYSTERESIS THRESHOLD VOLTAGE TEMPERATURE THRESHOLD HYSTERESIS TEMPERATURE SUPPLY CURRENT INPUT VOLTAGE SUPPLY CURRENT TEMPERATURE LEVEL OUTPUT CURRENT TEMPERATURE FIGURE
Application Circuits
VOLTAGE MICROPROCESSOR RESET SWITCHING LOAD WHEN BATTERY REACHES BELOW 2.7V VOLTAGE MONITOR SOLAR POWERED BATTERY CHARGER
LEVEL OUTPUT SATURATION VOLTAGE TEMPERATURE LEVEL OUTPUT SATURATION VOLTAGE TEMPERATURE CLAMP DIODE FORWARD VOLTAGE FORWARD CURRENT PROPAGATION DELAY HIGH PROPAGATION DELAY HIGH MINIMUM OPERATING VOLTAGE OVER TEMPERATURE
Copyright 1999 Rev. 1.2a 11/04
PRODUCT DATABOOK 1996/1997
MC33164-3/MC34164-3
CHARACTERISTIC
CURVES
FIGURE INPUT VOLTAGE RESET OUTPUT VOLTAGE TIME
FIGURE POWER-UP RESET VOLTAGE
RESET
Power-Up RESET Voltage
25°C
10kohms 25°C
RESE0.4
Time (ms)
Time (ms)
FIGURE POWER-DOWN RESET VOLTAGE
FIGURE RESET OUTPUT VOLTAGE INPUT VOLTAGE
3.00
(VOUT) RESET Output Voltage
Power-Down RESET Voltage
10kohms 25°C
2.50
2.00
82kW 25°C
1.50
1.00
RESE0.2
0.50
2.63 2.65 2.67 2.69 2.71 2.73
Time (ms)
(VIN) Input Voltage
Copyright 1999 Rev. 1.2a 11/04
PRODUCT DATABOOK 1996/1997
MC33164-3/MC34164-3
CHARACTERISTIC
CURVES
FIGURE THRESHOLD VOLTAGE TEMPERATURE
2.800 2.775
FIGURE THRESHOLD HYSTERESIS TEMPERATURE
(VT) Threshold Voltage
2.750 2.725 2.700 2.675 2.650 2.625 2.600 2.575 2.550
(VH) Threshold Hysteresis (mV)
High Threshold Voltage
Threshold Voltage
(TA) Ambient Temperature (°C)
(TA) Ambient Temperature (°C)
FIGURE SUPPLY CURRENT INPUT VOLTAGE
FIGURE SUPPLY CURRENT TEMPERATURE
25.0
(IIN) Quiescent Input Current (µA)
Load 25°C
Load
20.0
(IIN) Input Current (µA)
15.0
10.0
(VIN) Input Voltage
(TA) Ambient Temperature (°C)
Copyright 1999 Rev. 1.2a 11/04
PRODUCT DATABOOK 1996/1997
MC33164-3/MC34164-3
CHARACTERISTIC
CURVES
FIGURE LEVEL OUTPUT CURRENT TEMPERATURE
FIGURE LEVEL OUTPUT SATURATION VOLTAGE TEMPERATURE
VOUT 2.4V
(ISINK) Output Sink Current (mA)
(VOL) Output Sink Saturation (mV)
2.4V IOUT
(TA) Ambient Temperature (°C)
(TA) Ambient Temperature (°C)
FIGURE LEVEL OUTPUT SATURATION VOLTAGE TEMPERATURE
FIGURE CLAMP DIODE FORWARD VOLTAGE FORWARD CURREN-1.6
(VF) Clamp Diode Forward Voltage
(VOL) Output Sink Saturation (mV)
IOUT 250µA
-1.5 -1.4 -1.3 -1.2 -1.1 25°C -0.9 -0.8 85°C -0.7 -0.6
-40°C
(TA) Ambient Temperature (°C)
(IF) Diode Forward Current (mA)
Copyright 1999 Rev. 1.2a 11/04
PRODUCT DATABOOK 1996/1997
MC33164-3/MC34164-3
CHARACTERISTIC
CURVES
FIGURE PROPAGATION DELAY HIGH
FIGURE PROPAGATION DELAY HIGH
25°C
3.5V 2.4V
RESE
25°C
RESET
-0.5
RESET
-0.5
3.5V 2.4V RESE
Time (µs)
Time (µs)
FIGURE MINIMUM OPERATING VOLTAGE OVER TEMPERATURE
1.000
(VIN-MIN.) Minimum Operating Voltage
0.950 0.900 0.850 0.800 0.750 0.700 0.650 0.600 0.550 0.500
Ramp Down IOUT 250µA
(TA) Ambient Temperature (°C)
Copyright 1999 Rev. 1.2a 11/04
PRODUCT DATABOOK 1996/1997
MC33164-3/MC34164-3
FIGURE VOLTAGE MICROPROCESSOR RESET FIGURE SWITCHING LOAD WHEN BATTERY REACHES BELOW 2.7V
Power Supply RESET CDLY
Microprocessor Circuit
RESE
Load
VREF
time delayed reset accomplished with addition CDLY. systems with extremely fast power supply rise times 500ns) recommended that RCDLY time constant greater than 5.0µs. VTH(MPU) microprocessor reset input threshold.
1.2VREF
tDLY CDLY
VTH(MPU)
FIGURE VOLTAGE MONITOR
FIGURE SOLAR POWERED BATTERY CHARGER
1.0k Power Supply RESEVIN RESET SOLAR CELLS
1.2VREF
1.2VREF
turns when 2.7V indicating Power Supply low.
PRODUCTION DATA Information contained this document proprietary LinFinity, current publication date. This document modified without express written consent LinFinity. Product processing does necessarily include testing parameters. Linfinity reserves right change configuration performance product discontinue product time.
Copyright 1999 Rev. 1.2a 11/04

UNDERVOLTAGE SENSING CIRCUI DESCRIPTION MC33164-3 MC34164-3 retur

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