PST92XX MITSUMI | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 6
Technical content
Features
- Internal delay circuit Delay time can be set with an external capacitor. 2. High-precision detection accuracy Vs±1.5%. 3. Low current consumption 3µA typ. Package SOT-25A
Applications
Equivalent Circuit Diagram Microcomputer reset and battery level detection 123 SOT-25A (TOP VIEW) MITSUMI 1 TC
2 SUB
3 GND
4 VOUT
5 VCC
July 18, 2000
MITSUMI IC for System Reset PST92XX Absolute Maximum Ratings MITSUMI Pin Description Recommended Operating Conditions Pin No. Pin name Functions
1 TC T PLH control pin
2 SUB Substrate pin *1
3 GND GND pin
4 VOUT Reset signal output pin
5 VCC VCC pin/voltage detect pin
Note 1 : Connect to GND. Item Symbol Ratings Unit Storage temperature TSTG -40~+125 °C Operating temperature TOPR -20~+175 °C Supply voltage VCC max. -0.3~+110 V Allowable loss Pd 150 mW Item Symbol Ratings Unit Operating temperature TOPR -20~+75 °C Supply voltage VCC -0.3~+10 V Electrical Characteristics (Ta=25°C) (Except where noted otherwise, resistance unit is Ω) Item Symbol Measurement Measurement conditions Min. Typ. Max. Unitcircuit PST9246 4.531 4.600 4.669 PST9245 4.432 4.500 4.568 PST9244 4.334 4.400 4.466 PST9243 4.235 4.300 4.365 PST9242 4.137 4.200 4.263 PST9241 4.038 4.100 4.162 PST9240 3.940 4.000 4.060 PST9239 3.841 3.900 3.959 PST9238 3.743 3.800 3.857 PST9237 3.644 3.700 3.756 PST9236 3.546 3.600 3.654 PST9235 3.447 3.500 3.553 V CC=H L PST9234 3.349 3.400 3.451 Detecting voltage VS 1R L=4.7k PST9233 3.250 3.300 3.350 V VOL <= 0.4V PST9232 3.152 3.200 3.248 PST9231 3.053 3.100 3.147 PST9230 2.955 3.000 3.045 PST9229 2.856 2.900 2.944 PST9228 2.758 2.800 2.842 PST9227 2.659 2.700 2.741 PST9226 2.561 2.600 2.639 PST9225 2.462 2.500 2.538 PST9224 2.364 2.400 2.436 PST9223 2.265 2.300 2.335 PST9222 2.167 2.200 2.233 PST9221 2.068 2.100 2.132 PST9220 1.970 2.000 2.030 PST9219 1.871 1.900 1.929
MITSUMI IC for System Reset PST92XXMITSUMI Item Symbol Measurement Measurement conditions Min. Typ. Max. Unitcircuit VCC1=L H L, RL=4.7kHysteresis voltage Vs 1 S1 : ON 25 50 100 mV Detecting voltage RL=4.7k, Ta=-20~+75°C temperature coefficient Vs/ T 1 S1 : ON ±0.01 %/°C Output Leak current IOH 1V CC1=VCC2=10V S2 : ON ±0.1 µA Circuit current at ON time ICCL 1V CC1=VS min. -0.05V RL=∞ 5.0 9.0 µA Circuit current at OFF time ICCH 1V CC1=VS typ./0.85 RL=∞ 3.0 5.0 µA "H" transmission TPLH 2 RL=4.7k, CL=100pF (*3) msdelay time Cd=0.01µF *1 "L" transmission TPHL 2 RL=4.7k, CL=100pF (*3) µsdelay time Cd=0.01µF *2 Threshold operating voltage VOPL 1R L=4.7k VOL <= 0.4V S1 : ON 0.65 0.85 V Output current IOL11 VCC1=VS min. -0.05V 5m Aat ON time 1 VCC2=0.4V S2 : ON Output current IOL21 VCC1=VS min. -0.05V 3m Aat ON time 2 Ta=-20~+75°C S2 : ON NOTE 1: TPLH : VCC=(VS typ. -0.4V) (VS typ. +0.4V) NOTE 2 : TPLH : VCC=(VS typ. +0.4V) (VS typ. -0.4V) NOTE 3 : Tables of PST92 series transmission delay time (Please see below.) TPLH TPHL PST9246 195 140 PST9245 190 140 PST9244 185 140 PST9243 180 140 PST9242 175 140 PST9241 170 140 PST9240 165 140 PST9239 160 140 PST9238 155 120 PST9237 150 120 PST9236 145 120 PST9235 140 120 PST9234 135 120 PST9233 130 120 PST9232 125 120 PST9231 120 120 PST9230 115 120 PST9229 110 120 PST9228 105 100 PST9227 100 100 PST9226 95 100 PST9225 90 100 PST9224 85 100 PST9223 80 100 PST9222 75 100 PST9221 70 100 PST9220 65 100 PST9219 60 100
MITSUMI IC for System Reset PST92XXMITSUMI Measuring Circuit (1) (2) A : DC Amperemeter V : DC Voltmeter CRT : Oscilloscope INPUT PULSE Vs typ.+0.4V Vs typ.-0.4V
MITSUMI IC for System Reset PST92XX Timing Chart TPLH TPLH TPLH >TPLHVsVCC V VOUT V Vs Application Circuit * : When the rapid noise occurs to VCC, VOUT has sometimes switched over even if VCC doesn't become below VS. If the impedance of VCC line is high enough, connect a capacitor between VCC and GND terminal of the IC. *
MITSUMI IC for System Reset PST92XXMITSUMI Characteristics (1) VCC vs VOUT VsVs V CC VOUT (2) Cd-TPLH 1.0E+00 1.0E+00 1.0E-01 1.0E-02 1.0E-03 1.0E-04 1.0E-05 Cd (pF) TPLH (S) Representative TPLH Data : PST9220, PST9244 "H" transmission delay time can be calculated roughly using the following formula, but there is some fluctuation due to element deviation and the Vcc input signal (dV/dT). TPLH [ms] .=. Cd [µF] d d: delay time coefficient PST9220 Cd-TPLH Characteristics 1.0E+00 1.0E-05 1.0E-04 1.0E-03 1.0E-02 1.0E-01 1.0E+00 Cd (pF) TPLH (S) PST9244 Cd-TPLH Characteristics Model name d Model name d Model name d PST9246 1.95 104 PST9236 1.45 104 PST9226 0.95 104 PST9245 1.90 104 PST9235 1.40 104 PST9225 0.90 104 PST9244 1.85 104 PST9234 1.35 104 PST9224 0.85 104 PST9243 1.80 104 PST9233 1.30 104 PST9223 0.80 104 PST9242 1.75 104 PST9232 1.25 104 PST9222 0.75 104 PST9241 1.70 104 PST9231 1.20 104 PST9221 0.70 104 PST9240 1.65 104 PST9230 1.15 104 PST9220 0.65 104 PST9239 1.60 104 PST9229 1.10 104 PST9219 0.60 104 PST9238 1.55 104 PST9228 1.05 104 PST9237 1.50 104 PST9227 1.00 104