RICOH RN5VD SERIES Owner's Manual User Guide
Summary
Monitor system integrity with the RN5VD Series of low voltage detector ICs. These CMOS-based chips offer high accuracy and ultra-low power consumption, making them ideal for implementing reliable system resets and monitoring power failures across 0.7V to 10.0V operation. The manual details features like built-in output delay circuits (typ. 100ms), selecting specific detector thresholds, and available output types (Nch Open Drain/CMOS). Designed for professional electronics engineers building CPU logic, battery checkers, or requiring dependable low-voltage supervision in embedded systems.
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RN5VD SERIES
LOW VOLTAGE DETECTOR WITH OUTPUT DELAY
NO. EA-027-111103
OUTLINE The RN5VD Series are CMOS-based voltage detector ICs with high detector threshold accuracy and ultra-low supply current, which can be operated at an extremely low voltage and is used for system reset as an example. Each of these ICs consists of a voltage reference unit, a comparator, resistor net for detector threshold setting, an output driver, a hysteresis circuit, and an output delay circuit. The detector threshold is fixed with high accuracy internally and does not require any adjustment. Two output types, Nch open drain type and CMOS type are available. Since the package for these ICs is SOT-23-5 package, high density mounting of the ICs on board is possible.
FEATURES • Built-in Output Delay Circuit............................................... Typ. 100ms with an external capacitor : 0.15μF • Supply Current Typ. 1.0μA (RN5VD15x, VDD=3.5V) • Operating Voltage Range................................................... 0.7 to 10.0V (Topt=25°C) • Detector Threshold Range................................................. 0.9V to 6.0V (0.1V steps) • Detector Threshold Accuracy............................................. ±2.5% • Temperature-Drift Coefficient of Detector Threshold ............Typ. ±100ppm/°C • Output Types...................................................................... Nch Open Drain and CMOS • Package SOT-23-5
APPLICATIONS • CPU and Logic Circuit Reset • Battery Checker • Window Comparator • Wave Shaping Circuit • Battery Back-up Circuit • Power Failure Detector
Page Summary Contents For RICOH RN5VD SERIES Owner's Manual User Guide
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 26 |
| File Size | 688.92 KB |
| Published | June 01, 2026 |
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Frequently Asked Questions
How do I set the delay time for the output signal?
You can set the output delay using an external capacitor connected to Pin 5 (CD). A sample value is 0.15μF for a typical 100ms delay.
What voltage range can be selected as the detector threshold?
The detector threshold can be specified by the user in the range of 0.9V up to 6.0V, utilizing increments of 0.1V.
Which pin is responsible for setting the output delay?
Pin 5 (labeled CD) is dedicated for connecting the external capacitor used to set the detection cycle's output delay.
What is the typical low-voltage power consumption?
The device features a very low typical supply current, such as 1.0μA when operating at VDD=3.5V.