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Description
The R3112N131A-TR is a CMOS-based voltage detector IC under the R3112x Series by Renesas Electronics. These ICs have high detector threshold accuracy, ultra-low supply current, and are designed to work at very low voltage making it perfect to use as a system reset.
Specifications and features
The R3112N131A-TR consists of a voltage reference unit, comparator, resistor net, output driver, hysteresis circuit, and an output delay circuit. It has fixed and highly accurate detector threshold internally and does not require any adjustment. It offers two types of output - Nch open-drain and CMOS. Three package types are available - SOT-23-5, small SC-82AB, and ultra-small SON1612-6. The IC can work on an operating voltage range of 0.7V to 6.0V, and its detector threshold ranges from 0.9V to 5.0V with a detector threshold accuracy of ±2.0%. It also has a low temperature drift coefficient of detector threshold, typically ±100ppm/°C. Other features include a built-in output delay circuit with a typ. 100ms delay, and a supply current of typ. 0.5µA (R3112x271A/C, VDD=2.6V).
Application Scenarios
The R3112N131A-TR is widely used in various circuits and systems, such as CPU and logic circuit reset, battery checker, window comparator, wave shaping circuit, battery back-up circuit, and power failure detector.
Comparison
Advantages- High detector threshold accuracy
- Ultra-low supply current
- Can operate at very low voltage
- Fixed detector threshold internally, does not require adjustment
- Two types of output- Nch open-drain and CMOS
- Three package types available - SOT-23-5, small SC-82AB, and ultra-small SON1612-6
Disadvantages- The output delay circuit is built-in and cannot be customized
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Datasheet
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- Datasheet: Download R3112N131A-TR
- Chipdatas Part: CD88-R3112N131A-TR
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- Last Updated: 2024/10/01 09:59 +0800
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