Overview
This IC is a system reset IC builtin delay time circuit.
PST87/88 is not required with an external capacitor, and then can use a small package.
Therefore a space of PC board can be small.
Application
・Reset circuits for microcomputers, CPUs and MPUs
・Reset circuits for logic circuits
・Battery voltage check circuits
・Back-up power supply switching circuits
・Level detection circuits
Features
Delay circuit with reduced temperature fluctuation
Main specifications
| Absolute maximum rating [V] |
Recommended operating voltage Min. [V] |
Recommended operating voltage Max. [V] |
Detection voltage Min. [V] |
Detection voltage Max. [V] |
Detection voltage accuracy [%] |
Consumption current [μA] |
Release delay time | Output type | Output Logic | Separated sense pin | Manual reset | Circuit structure | Operating Ambient Temperature Min. [deg.C] |
Operating Ambient Temperature Max. [deg.C] |
Hysteresis voltage Typ. [V] |
Detect delay time Typ. [ms] |
Additional function |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6.0 | 1.20 | 5.50 | 1.6 | 4.6 | ±1.5 | 1.00 | Fixed | Open drain | Active L | No | No | 1ch Reset | -40 | 85 | 50mV | PST870:20 PST871:50 PST872:100 PST873:200 |
Manual reset (PST87xR/PST88xR) |
| Absolute maximum rating [V] |
Recommended operating voltage Min. [V] |
Recommended operating voltage Max. [V] |
Detection voltage Min. [V] |
Detection voltage Max. [V] |
Detection voltage accuracy [%] |
Consumption current [μA] |
|---|---|---|---|---|---|---|
| 6.0 | 1.20 | 5.50 | 1.6 | 4.6 | ±1.5 | 1.00 |
| Release delay time | Output type | Output Logic | Separated sense pin | Manual reset | Circuit structure |
|---|---|---|---|---|---|
| Fixed | Open drain | Active L | No | No | 1ch Reset |
| Operating Ambient Temperature Min. [deg.C] |
Operating Ambient Temperature Max. [deg.C] |
Hysteresis voltage Typ. [V] |
Detect delay time Typ. [ms] |
|---|---|---|---|
| -40 | 85 | 50mV | PST870:20 PST871:50 PST872:100 PST873:200 |
| Additional function |
|---|
| Manual reset (PST87xR/PST88xR) |
Package
Download
Associated Data
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Ideal for car battery voltage monitoring. MinebeaMitsumi's 40V high voltage resistant reset IC.
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"MM3878 Series" is a Secondary side synchronous rectification control ICs for AC/DC power supply that achieves high efficiency and safety through unique control.
