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Voltage Detector

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Technical information about Ricoh’s microprocessor supervisory IC.
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Precautions before Use

* When using Nch. open drain output products in circuits such as shown in figures A and B with a large impedance (R1) between the VDD pin and VDD, detector threshold level would shift by voltage dropdown caused by the supply current of the IC itself. Released voltage may also shift and delay time for start-up might be generated by this usage.
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If CMOS output products are used in circuits such as shown in figures A and B, output level could be unstable by shoot-through current which is generated at detector threshold level or at released voltage level, so please avoid this style of use.
Fig.A/Fig.B
* Connections such as shown in figure C, may cause an unstable operation of all output types, so please avoid this style of use.
*Fig.C

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