MITSUBISHI<STD-LINEAR> M62032AFP VOLTAGE DETECTING, SYSTEM RESETTING IC GENERAL DESCRIPTION The M62032AFP is an IC for detection of two different input voltages to reset almost all logic circuits including MCU. It contains a delay circuit with which any delay time can be obtained only by adding an external capacitor. The IC is widely applicable to a battery check circuit, a level detection circuit, a waveform shaping circuit, etc. FEATURES • A small number of external components • Built-in 2 input voltage detection circuits • Wide supply voltage range ............... 2 to 10V • Small 8-pin package • Open collector output PIN CONFIGURATION (TOP VIEW) VIN1 1 8 VRES VIN2 2 7 VCC NC 3 6 VO GND 4 APPLICATION Reset circuit of MPU, MCU and logic OUTLINE 5 EXTERNAL CAPACITOR 8P2S(FP) RECOMMENDED OPERATING CONDITION Supply voltage range ......................... 2 to 10V BLOCK DIAGRAM VCC 7 Vcc Vcc 6 VO 5 Delay Capacitor C 3 NC VIN2 2 1.25V Vcc VIN1 1 1.25V VRES 8 4 GND (1/4) MITSUBISHI<STD-LINEAR> M62032AFP VOLTAGE DETECTING, SYSTEM RESETTING IC FUNCTIONAL DIAGRAM INPUT VOLTAGE INPUT1 INPUT 2 INPUT 2 INPUT1 1.25V INPUT1 INPUT 2 INPUT 2 INPUT1 t OUTPUT H TPLH1 TPLH1 L t TERMINAL DESCRIPTION Terminal No. Symbol Functional Description 1 VIN1 Detecting voltage input 1 2 VIN2 Detecting voltage input 2 3 NC No connection 4 GND Ground 5 EXTERNAL CAPACITOR Delay capacitor connection 6 Vo Output (open collector) 7 VCC Supply voltage 8 VRES It outputs "L" and "H" to the Vo terminal when VRES input is "H" and " L", respectively. (2/4) MITSUBISHI<STD-LINEAR> M62032AFP VOLTAGE DETECTING, SYSTEM RESETTING IC ABSOLUTE MAXIMUM RATINGS (Ta=25 ˚C, unless otherwise noted) Symbol VCC ISINK VO VRES Pd Ktheta Topr Tstg Parameter Conditions Supply Voltage Output Sink Current Output Voltage Self Reset Input Voltage Power Dissipation Thermal Derating Operating Temperature Storage Temperature Ta ≥ 25˚C Ratings Unit 10 8.0 10 10 300 3.0 -20 to +75 -40 to +125 V mA V V mW mW/˚C ˚C ˚C ELECTRICAL CHARACTERISTICS (Ta=25 ˚C, unless otherwise noted) <Reset circuit1> Symbol VS1 ∆VS1 VIN IIN IPD VOL1 tpd1 tpdmax ∆VSCin Parameter Test Conditions Detecting Voltage 1 Hysteresis Voltage 1 Input Voltage Range VCC ≤ 7V VCC>7V VIN=1.25V Min 1.20 9 -0.3 -0.3 Limits Typ 1.25 15 Input Current 100 Constant Current -1.4 Low Output Voltage 1 IOL=5mA 0.2 Delay Time Cd=0.01uF 10 Maximum Delay Time Cd=0.68uF 680 Delay Capacitor part 250 Hysteresis Voltage * The delay time can be varied by changing the connecting capacitance(Cd). Tpd = CV/I = Cd x 1E6 (sec) Max 1.30 23 VCC 7.0 500 0.4 1130 Unit V mV V nA uA V mS mV <Reset circuit2> Symbol Parameter VS2 ∆VS2 Detecting Voltage2 Hysteresis Voltage2 VIN IIN Input Voltage Range Input Current Test conditions VCC ≤ 7V VCC>7V VIN=1.25V Min 1.20 9 -0.3 -0.3 Limits Typ 1.25 15 Max 100 1.30 23 VCC 7.0 500 Limits Typ Max Unit V mV V nA <Common specification> Parameter Symbol VCC ICC1 Supply Voltage Range Circuit Current in OFF VS/∆T ∆VS/∆T TPLH/∆T IOH TPHL Detecting Voltage Temperature Coefficient The Hysteresis Voltage Temperature Coefficient Propagation Delay Time Temperature Coefficient VOPL Threshold Operating Voltage VRESH IRESH VRESL Test conditions Min 2 VCC=5V 0.3 0.01 0.01 0.10 CL=100pF RL=2.2kΩ,VOL ≤ 0.4V RL=100kΩ,VOL ≤ 0.4V 2 Input "HIGH" voltage VRES Input "HIGH" current 10 0.67 0.55 VRES=2V -0.3 Input "LOW" voltage (3/4) V mA %/°C %/°C %/°C 1 Output Leak Current Output "L" Propagation Delay Time 10 0.6 Unit 0.8 0 0.70 VCC 80 0.8 uA us V V uA V MITSUBISHI<STD-LINEAR> M62032AFP VOLTAGE DETECTING, SYSTEM RESETTING IC AN EXAMPLE OF THE APPLICATION CIRCUIT VCC 7 DETECTION INPUT 1 RL 1 6 RESET (RESET) M62032AFP DETECTION INPUT 2 MCU 2 5 8 Interrupt Input signal Supply Voltage 4 0.01uF GND EXTERNAL CAPACITOR * A forced reset signal (high) into pin 8 from outside can reset this IC (low output) regardless of input signals to pins 1 and 2. ! Mitsubishi Electric Corporation puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit design, in order to prevent fires from spreading, redundancy, malfunction or other mishap. (4/4)