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Description
The R3132Q22EC is an IC chip in the low voltage detector family that has a built-in delay circuit, high detector threshold accuracy and ultra-low supply current. It can be operated at low voltage, and can be used as a system reset generator. Each R3132Q22EC consists of a voltage reference, a comparator, resistors for setting voltage detector threshold, an output driver transistor, and an output delay generator. Detector threshold is fixed internally with high accuracy and requires no adjustment. When the supply voltage crosses a setting detector threshold voltage from a high value to a lower value, this IC generates a reset signal. R3132Q22EC output “L” at detection mode, while R3131N Series output “H”. It has two output types, Nch open-drain type and CMOS type, and comes in an SOT23-3 (Mini-mold) package allowing for high density mounting of the ICs on board.
Specifications and Features
- Pin to Pin compatible with MAX 809/810 (R3130Nxxxx: MAX 809, R3131Nxxxx: MAX 810)
- Ultra-low supply Current.................................Typ. 1.25µA (R313xN27xx: VDD=3.0V)
- Operating Voltage Range.......................................1.0V to 6.0V (Topt=25°C)
- Detector Threshold...................................setting with a step of 0.1V in the range of 1.6V to 4.8V is possible
- Embedded Power on Reset Delay Time Circuit..............delay time can be designated.
- High Accuracy Detector Threshold...........................±1.5%
- High Accuracy Output Delay Time...........................±10.0%
- Low Temperature-Drift Coefficient of Detector Threshold....Typ. ±100ppm/°C
Application Scenarios
- CPU & Logic Circuit Reset
- Battery Checker
- Window Comparator
- Wave Shaping Circuit
- Battery Back-Up Circuit
- Power Failure Detector
Comparison
Advantages- Detector threshold is fixed internally with high accuracy and requires no adjustment
- Ultra-low supply current
- High accuracy detector threshold
- Low temperature-drift coefficient of detector threshold
- Two output types are available
Disadvantages- None specified
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Datasheet
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- Datasheet: Download R3132Q22EC
- Chipdatas Part: CD89-R3132Q22EC
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- Last Updated: 2024/10/01 10:16 +0800
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