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RT9801B - User Programmable Micro-Power Voltage Detectors

Download the RT9801B datasheet PDF (RT9801A included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for user programmable micro-power voltage detectors.

Description

The RT9801A/B is a micro-power voltage detector supervising the power supply voltage level for microprocessors (μP) or digital systems.

It provides user programmable threshold levels with 0.1V step ranging from 1.5V to 5V, which covers most digital applications.

Features

  • low supply current of 3μA. Selection of VTH is easily achieved through 3 pins connected to GND, VDD or floating for different threshold voltage settings. Two versions of threshold voltages, 1.5V to 4V and 2.5V to 5V, which are programmed in factory are offered by customer demands. The RT9801A/B performs supervisory function by sending out a reset signal whenever the VDD voltage falls below a preset threshold level. This reset signal will last the whole period before VDD recovering. Reset signal.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT9801A-RichTek.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number RT9801B
Manufacturer Richtek
File Size 121.14 KB
Description User Programmable Micro-Power Voltage Detectors
Datasheet download datasheet RT9801B Datasheet

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Full PDF Text Transcription

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RT9801A/B User Programmable Micro-Power Voltage Detectors General Description The RT9801A/B is a micro-power voltage detector supervising the power supply voltage level for microprocessors (μP) or digital systems. It provides user programmable threshold levels with 0.1V step ranging from 1.5V to 5V, which covers most digital applications. It features low supply current of 3μA. Selection of VTH is easily achieved through 3 pins connected to GND, VDD or floating for different threshold voltage settings. Two versions of threshold voltages, 1.5V to 4V and 2.5V to 5V, which are programmed in factory are offered by customer demands. The RT9801A/B performs supervisory function by sending out a reset signal whenever the VDD voltage falls below a preset threshold level.
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