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Description
The R3111N331A-TR is a CMOS-based voltage detector IC designed for system reset, which belongs to the R3111x series. It is characterized by high detector threshold accuracy and ultra-low supply current, which can be operated at an extremely low voltage. The IC includes a voltage reference unit, a comparator, resistors for detector threshold setting, an output driver, and a hysteresis circuit. The detector threshold is fixed with high accuracy internally and does not require any adjustment. Three output types, Nch open drain “L” type, Nch open drain “H” type, and CMOS type are available. It is offered in six types of packages.
Specifications and features
- Supply Current: Typ. 0.8µA (VDD=1.5V)
- Range of Operating Voltage: 0.7V to 10.0V (Topt=25°C)
- Detector Threshold: 0.9V to 6.0V, Accuracy Detector Threshold: ±2.0%
- Temperature-Drift Coefficient of Detector Threshold: Typ. ±100ppm/°C
- Output Types: Nch Open Drain “L”, Nch Open Drain “H”, and CMOS
- Packages Available: TO-92, SOT-89, SOT-23-3, SOT-23-5, SC-82AB, SON1612-6
Application Scenarios
The R3111N331A-TR is commonly used for the following applications:
- CPU and Logic Circuit Reset
- Battery Checker
- Window Comparator
- Wave Shaping Circuit
- Battery Back-up Circuit
- Power Failure Detector
Comparison
Advantages- High detector threshold accuracy
- Ultra-low supply current
- Operable at a lower voltage than that for the Rx5VL series
- Includes a hysteresis circuit for added stability
Disadvantages- None stated
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Datasheet
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Additional Information
- Datasheet: Download R3111N331A-TR
- Chipdatas Part: CD87-R3111N331A-TR
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/01 09:14 +0800
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