PST90XX MITSUMI | Alldatasheet

Document overview

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Technical content

Features

  1. High precision voltage detection V S±2.5% max. 2. Super low current consumption I CCH=1.5µA typ. ICCL=1µA typ. 3. Low operating threshold voltage 0.7V max. 4. Hysteresis voltage is provided as a detect voltage Vs 5% typ. 5. The detect voltage can be selected at your discretion at 0.1 V step within the range of 0.8 to 1.8V by the following stipulation method. PST90XX Detected voltage value (Example : for 0.8V ······ PST9008) Packages TO-92A (PST90 ) SOT-25A (PST90 N)

Applications

  1. Reset circuits for microcomputers, CPUs and MPUs 2. Reset circuits for logic circuits 3. Battery voltage check circuits 4. Back-up power supply switching circuits 5. Level detection circuits Pin Assignment 123 TO-92A 123 SOT-25A (TOP VIEW)

1 VOUT

2 VCC

3 GND

Note : The pin 2 of SOT-25 package is a SUB terminal. Connect it to GND. 1 NC

2 SUB

4 VOUT

5 VCC

November 9, 2001

MITSUMI IC for System Reset PST90XX Absolute Maximum Ratings (Ta=25°C) Electrical Characteristics (Ta=25°C) (The unit of resistance is Ω unless otherwise indicated.) Equivalent Circuit Diagram Item Symbol Ratings Units Storage temperature TSTG -40~+125 °C Operating temperature TOPR -20~+75 °C Supply Voltage VCC max. -0.3~10 V Allowable loss Pd 150 (SOT-25A) mW300 (TO-92A) Item Symbol Measurement Measurement conditions Min. Typ. Max. UnitCircuit PST9008 0.8 PST9009 0.9 PST9010 1.0 PST9011 1.1 R VOL <= 0.4V PST9014 1.4 PST9015 1.5 PST9016 1.6 PST9017 1.7 PST9018 1.8 Hysteresis Voltage V S 1 RL=4.7k V S VS typ. V S mVVCC=L H L 0.5 0.05 2 Detection Voltage VS/ T 1 RL=4.7k ±0.01 %/ °CTemperature Coefficient Ta=-20°C~+75°C Output Leakage Current IOH1 V CC=10V 0.1 µA Circuit Current at On Time ICCL 1 VCC=Vs min. -0.02V IOL=0mA 1.0 2.0 µA "H" Transmission Delay Time tpLH 2 C L=100pF, RL=4.7k 10 20 50 µs "L" Transmission Delay Time tpHL 2 C L=100pF, RL=4.7k 20 50 80 µs Operating Threshold Voltage VopL 1 R L=4.7k, VOL <= 0.4V 0.65 0.70 V Output Current at IOL1 1 RL=0 0.3 mAOn Time 1 VCC=Vs min. -0.02V Output Current at IOL2 1 VCC=Vs min. -0.02V 0.2 mAOn Time 2 RL=0, Ta=-20°C~+75°C

MITSUMI IC for System Reset PST90XX Equivalent Circuit Characteristics (Example: PST9008) -20-10 0 10 2 03 04 05 06 07 00 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Ta (°C) VopL (V) -20-10 0 10 2 03 04 05 06 07 00 Ta (°C) VS (mV) VS vs. Ta V OpL vs. Ta -20-10 0 10 2 03 04 05 06 07 00 0.5 1.5 2.5 Ta (°C) ICCH (µA) ICCH vs. Ta -20-10 0 10 2 03 04 05 06 07 00 0.5 1.5 2.5 Ta (°C) ICCL (µA) -20-10 0 10 2 03 04 05 06 07 00.77 0.78 0.79 0.80 0.81 0.82 0.83 Ta (°C) VS (V) VS vs. Ta I CCL vs. Ta