PST7046 MITSUMI | Alldatasheet

Document overview

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Technical content

Features

  1. High precision voltage detection Vs±2% max. 2. Ultra-low current consumption I CCH=2µA typ. ICCL=3µA typ. 3. Low operating limit voltage 0.65V typ. 4. Hysteresis voltage provided in detection voltage 50mV typ. 5. Output current high for ON 30mA typ. 6. Detection voltage can be selected as desired within a range of 1.9V~4.6V in 0.1V steps, as indicated below. PST70XX Detection voltage value Package MMP-3A (PST70 M) TO-92A (PST70 )

Applications

  1. Reset circuits in microcomputers, CPUs and MPUs. 2. Logic circuit reset circuits. 3. Battery voltage check circuits. 4. Back-up power supply switching circuits. 5. Level detection circuits. Pin Assignment 123 TO-92A MMP-3A (TOP VIEW)

1 VCC

2 GND

3 VOUT

MITSUMI System Reset PST70XX Absolute Maximum Ratings (Ta=25°C) Electrical Characteristics (Ta=25°C) (Except where noted otherwise, resistance unit is Ω ) Equivalent Circuit Diagram Item Symbol Rating Units Storage temperature TSTG -40~+125 °C Operating temperature TOPR -20~+75 °C Power supply voltage VCC max. -0.3~+10 V Allowable loss Pd 200 (MMP-3A) mW 300 (TO-92A) Item Symbol Measurement conditions Measurement circuit Min. Typ. Max. Units 4.6~ Detection voltage VS RL=470 VCC=H L 1 VS typ. 1.9 VS typ. V -2% (0.1V +2% Step) Hysteresis voltage VS RL=470 VCC=L H L 1 30 50 100 mV Detection voltage temperature coefficient Low-level output voltage VOL VCC=VS min. -0.05V 1 0.2 0.4 V RL=470 Output leakage current IOH VCC=10.0V 1 0.1 µA Circuit current while on ICCL VCC=VS min. -0.05V 1 3.0 6.0 µA RL=∞ Circuit current while off ICCH VCC=VS typ. /0.85V 1 2.0 4.0 µA RL=∞ "H"transport delay time tPLH RL=4.7k 7046~24 2 5 30 µs CL=100pF 7023~19 2 10 30 "L"transport delay time tPHL RL=4.7k 7046~24 2 30 70 µs CL=100pF 7023~19 2 70 150 Operation limit voltage VOPL RL=4.7k VOL <= 0.4V 1 0.65 0.85 V Output current while on 1 IOL1 VCC=VS min. -0.05V 1 8 30 mA RL=0 Output current while on 2 IOL2 VCC=Vs min. -0.05V RL=0 15 m A Ta=-20°C~+75°C

MITSUMI System Reset PST70XX Measuring Circuit [1] [2] *1 VS+0.4V *2 VS-0.4V