MITSUBISHI <STD-LINEAR> M62032FP VOLTAGE DETECTING, SYSTEM RESETTING IC GENERAL DESCRIPTION The M62032FP 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. VIN1 1 VIN2 2 NC 3 GND 4 APPLICATION Reset circuit of MPU, MCU and logics 8 VRES 7 VCC 6 VO 5 EXTERNAL CAPACITOR Outline 8P2S-A NC: NO CONNECTION RECOMMENDED OPERATING CONDITION Supply voltage range ......................... 2 to 10V BLOCK DIAGRAM M62032FP 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) VCC 7 Vcc Vcc 6 VO 5 EXTERNAL CAPACITOR 3 NC VIN1 1 1.25V Vcc VIN2 2 1.25V VRES 8 4 GND ( 1 / 4) 1998.7.24- B MITSUBISHI <STD-LINEAR> M62032FP VOLTAGE DETECTING, SYSTEM RESETTING IC FUNCTIONAL DIAGRAM INPUT 1 INPUT 2 INPUT VOLTAGE INPUT 2 INPUT 1 1.25V INPUT 2 INPUT 1 INPUT 1 INPUT 2 t OUTPUT H Td Td 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) 1998.7.24- B MITSUBISHI <STD-LINEAR> M62032FP 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 Parameter VS1 ∆VS1 Detecting Voltage 1 Hysteresis Voltage 1 VIN Input Voltage Range Test Conditions VCC ≤ 7V VCC > 7V VIN = 1.25V Min 1.20 9 -0.3 -0.3 Limits Typ 1.25 15 Max 1.30 23 VCC 7.0 500 Unit V mV V IIN Input Current 100 nA IPD Constant Current -1 uA VOL Low Output Voltage 1 IOL = 5mA 0.2 0.4 V tpd1 Delay Time Cd = 0.01uF 10 mS tpdmax Maximum Delay Time Cd = 0.68uF 680 1130 * The delay time can be varied by changing the connecting capacitance (Cd). Tpd = CV/I = Cd x 1(V)/1(uA) = Cd x 1E6 (sec) **When delay time setting goes over 100msec, add a condenser for chattering protection (0.01uF) to the output. <Reset circuit2> Symbol Parameter VS2 ∆VS2 Detecting Voltage2 Hysteresis Voltage2 VIN Input Voltage Range IIN Input Current Test conditions VCC ≤ 7V VCC > 7V VIN = 1.25V Min 1.20 9 -0.3 -0.3 Limits Typ Max 100 1.30 23 VCC 7.0 500 Limits Typ Max 1.25 15 Unit V mV V nA Common specification Symbol Parameter Supply Voltage Range VCC ICC Circuit Current in OFF Detecting Voltage Temperature VS/∆T Coefficient Hysteresis Voltage ∆VS/∆T The Temperature Coefficient Propagation Delay Time TPLH/∆T Temperature Coefficient IOH Output Leak Current Output "L" Propagation Delay Time TPHL VOPL VRESH IRESH VRESL Threshold Operating Voltage Self reset Input high voltage Input high current Input low voltage Test conditions Min 2 VCC = 5V 0.7 0.01 0.01 0.10 10 1.4 %/°C %/°C 10 RL = 2.2kΩ, VOL ≤ 0.4V RL = 100kΩ, VOL ≤ 0.4V 0.67 0.55 2 VRES = 2V -0.3 ( 3 / 4) V mA %/°C 1 CL = 100pF Unit uA µs 0.80 0.70 VCC 80 0.8 V V µA V 1998.7.24- B MITSUBISHI <STD-LINEAR> M62032FP VOLTAGE DETECTING, SYSTEM RESETTING IC AN EXAMPLE OF THE APPLICATION CIRCUIT VCC 7 DETECTION INPUT 1 1 DETECTION INPUT 2 Supply Voltage RL 6 RESET(RESET) M62032FP 2 MCU 5 8 0.01µF 4 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) 1998.7.24- B