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Details, datasheet, quote on part number:PST595JM
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Datasheet text preview:
MITSUMI
System Reset PST591~595
System Reset
Monolithic IC PST591~595 Series
Outline
These ICs function in a variety of CPU systems and other logic systems, to detect power supply voltage and reset the system accurately when power is turned on or interrupted, and has a built-in fixed delay time generating circuit. This series has been represented in the past by PST574/PST575, but these new low reset type system reset ICs expand the delay time series with a counter timer using an analog/digital hybrid circuit.
Features
1. Fixed delay time setting by counter timer Excellent delay time temperature characteristics 2. Low operating limit voltage 3. Hysteresis voltage provided in detection voltage 4. Current consumption for no-load 5. 5 delay time products available ±800ppm/°C 0.65V typ. 50mV typ. ICCL=300µA typ. ICCH=200µA typ. PST591 50ms PST592 100ms PST593 200ms C : 4.5V typ. D : 4.2V typ. E : 3.9V typ. F : 3.6V typ. G : 3.3V typ. PST594 400ms PST595 800ms H : 3.1V typ. I : 2.9V typ. J : 2.7V typ. K : 2.5V typ.
6. Each product has 9 detection voltage ranks.
Package
MMP-4A (PST59 M) TO-92A (PST59 ) contains detection voltage rank. (MMP-4A has a manual reset pin, which should be set at GND or NC during normal operation.)
*
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. 6. Mechanical reset circuits
MITSUMI
System Reset PST591~595
Pin Assignment
1 1 2 3 VCC GND VOUT 1 2 3 4 1 2 3 MMP-4A (TOP VIEW) 4 3 2
VOUT Manual Reset VCC GND
TO-92A
Equivalent Circuit Diagram
Absolute Maximum Ratings
Item Storage temperature Operating temperature Power supply voltage
(Ta=25°C) Symbol TSTG TOPR VCC max. VRES max. Pd Rating -40~+125 -20~+75 -0.3~10 -0.3~10 200 (MMP-4P) 300 (TO-92) Units
°C °C
V V mW
Manual reset input voltage Allowable loss
MITSUMI
System Reset PST591~595
Electrical Characteristics
Item
(Ta=25°C) (Except where noted otherwise, resistance unit is) Measurement conditions C D E RL=470 F < 0.4V G VOL = VCC=H L H I J K RL=470, VCC=L H L RL=470, Ta=-20°C~+75°C VCC=Vs min.-0.05V, RL=470 VCC=10V VCC=Vs min.-0.05V, RL= VCC=Vs typ./0.85V, RL= PST591 PST592 RL=4.7k PST593 CL=100PF 1 PST594 PST595 RL=4.7k, CL=100PF 1 RL=4.7k, VOL < 0.4V = VCC=VS min.-0.05V, RL=0 Ta=-20°C~+75°C, RL=0 2 Min. 4.3 4.0 3.7 3.4 3.1 2.9 2.75 2.55 2.35 30 Typ. 4.5 4.2 3.9 3.6 3.3 3.1 2.90 2.70 2.50 50 ±0.01 0.1 0.4 ±0.1 600 350 75 150 300 600 1200 Max. Unit 4.7 4.4 4.1 3.8 3.5 V 3.3 3.05 2.85 2.65 100 mV %/°C V µA µA µA
Symbol Measuring circuit
Detection voltage
VS
1
Hysteresis voltage Detection voltage temperature coefficient Low-level output voltage Output leakage current Circuit current while on Circuit current while off
VS V S/ T VOL IOH ICCL ICCH
1 1 1 1 1 1
"H" transport delay time
tPLH
2
*
"L" transport delay time Operating power supply voltage Output current while on 1 Output current while on 2 Manual Input high voltage reset Input high current pin Input low voltage
tPHL VOPL IOL1 IOL2 VRESH VRESH VRESL
2 1 1 1
*
*
VRES=2V
300 200 30 50 60 100 120 200 ms 240 400 480 800 10 µs 0.65 0.85 V 8 mA 6 mA 2.0 V 80 µA 0.8 V
*1 tpLH : VCC= (VS typ.-0.4V) *2 VCC=VS min.-0.15V
Measuring Circuit
[1]
(VS typ.+0.4V), tpHL : VCC= (VS typ.+0.4V)
(VS typ.-0.4V)
Note 3: VOUT pin is low when manual reset pin is high. VOUT pin is high when manual reset pin is low.
[2]
Note: Input model is an example for PST591C.
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