
MITSUMI
CMOS System Reset IC with Delay Time Circuit PST83XX, 84XX Series
CMOS System Reset IC with Delay Time Circuit
Monolithic IC PST83XX, 84XX Series
Outline
Features
1. High accuracy
±0.5% typ. / 2.0~6.0V
±0.8% typ. / 0.8~1.9V
2. Super low supply current
0.35A typ.
3. Component-side product
1.10×1.40mm (SSON-4)
4. Operating-temperature range
-40~+105°C
5. Delay resistance accuracy
10MΩ±10%
6. Detecting voltage rank
0.8~6.0V (0.1V step)
Packages
SSON-4
SOT-25A
SC-82AB
Applications
1. Reset circuits for 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
In various CPU systems or other logic systems, when the time of a power supply injection and a power supply are
severed for a moment, this IC detects supply voltage and applies reset to a system.
To ±1.5% of detection voltage accuracy of the conventional product, a maximum of ±0.5% of super-high precision
is realized, and it is more suitable for battery detection etc. The accuracy from elegance is conventionally raised from
+100/-50% to ±10% also about delay resistance.
Moreover, the component-side product is realizing the small space using SSON-4.
May 21, 2009