PST893B
Overview
This IC is a reset IC for turning on/off power supply and power flicker in CPU or logic systems. This IC can change delay time by an external capacitor. Charging method of the capacitor, is current source type.
Current source type can reduce temperature fluctuations in the delay time.
td typ. ±6% (Ta=-40℃ to 105℃), It is ideal for a wide set the operating temperature range.
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
Low current consumption,
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] |
Delay pin charge current current Typ. [nA] |
Detection pin threshold voltage Typ. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7.0 | 0.95 | 6.50 | 1.6 | 5.2 | ±1 | 0.35 | Adjustable | CMOS | Active L | No | No | 1ch Reset | -40 | 105 | VTH(Typ.)×0.05 | 100 | VDD×0.5 |
| 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] |
|---|---|---|---|---|---|---|
| 7.0 | 0.95 | 6.50 | 1.6 | 5.2 | ±1 | 0.35 |
| Release delay time | Output type | Output Logic | Separated sense pin | Manual reset | Circuit structure |
|---|---|---|---|---|---|
| Adjustable | CMOS | Active L | No | No | 1ch Reset |
| Operating Ambient Temperature Min. [deg.C] |
Operating Ambient Temperature Max. [deg.C] |
Hysteresis voltage Typ. [V] |
Delay pin charge current current Typ. [nA] |
|---|---|---|---|
| -40 | 105 | VTH(Typ.)×0.05 | 100 |
| Detection pin threshold voltage Typ. |
|---|
| VDD×0.5 |
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Associated Data
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Ideal for car battery voltage monitoring. MinebeaMitsumi's 40V high voltage resistant reset IC.
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