R3121 Series
36V Input Voltage Detector with Release Delay Function
R3121 Series
36V Input Voltage Detector with Release Delay Function
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Description
R3121 is the 36 V Maximum Input Voltage Detector (Maximum Rating: 50 V). Selectable options of VDD Pin Detection Type (R3121NxxxA), SENSE Pin Detection Type (R3121NxxxE) and VDD Pin Detection without Hysteresis Type (R3121NxxxG), depending on the system configurations.
Key Benefits
- Highly accurate voltage detection with detector threshold accuracy ±1.5% (Ta = 25°C)
- Selectable options of VDD Pin Detection, SENSE Pin Detection and VDD Pin Detection without Hysteresis
- Adjustment of the release delay time (Power-on Reset Time) by connecting external capacitors
- Reduction of mounting area by using compact package of SOT-23-6
Spec
| Standard | Industrial | Automotive | |
|---|---|---|---|
| Operating Voltage Range | R3121NxxxA/G: 1.4 V to 36.0 V (50.0V) R3121NxxxE: 2.4 V to 6.0 V (7.0V) |
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| Operating Temperature Range | -40°C to 85°C (125°C) | -40°C to 125°C (150°C) | -40°C to 125°C (150°C) |
| Supply Current | R3121NxxxA/G: Typ. 3.8 µA R3121NxxxE: Typ. 3.5 µA |
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| Detector Threshold Range | 3.0 V to 12.0 V (0.1 V step) | ||
| Detector Threshold Accuracy | ±1.5% (Ta = 25°C) ±2.0% (-40°C ≤ Ta ≤ 85°C) |
±1.5% (Ta = 25°C) -2.2 to 2.5% (-40°C ≤ Ta ≤ 125°C) |
±1.5% (Ta = 25°C) -2.2 to 2.5% (-40°C ≤ Ta ≤ 125°C) |
| Release Delay Time Accuracy | -35% to 40% (-40°C ≤ Ta ≤ 85°C) | -40% to 80% (-40°C ≤ Ta ≤ 125°C) | -40% to 80% (-40°C ≤ Ta ≤ 125°C) |
| Output Type | Nch Open Drain | ||
| Package | SOT-23-6 | ||
Technical Documents
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SPICE model download
You can download the product's SPICE model. Login/registration to myNISD is required to download.
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Typical Application
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Typical Application
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R3121NxxxA Timing Chart
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R3121NxxxE Timing Chart
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R3121NxxxG Timing Chart
Quality & Packages
- Refer to the datasheets for the details on the product.
- The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
Qualification Test Plan (QTP) Sheets
To download the QTP sheets, a myNISD account is required. If you do not have an account, please register in advance.If you already have an account, please click the button below. After logging in to myNISD, the QTP sheet list page for the corresponding series will be displayed.
FAQ
Buy / Contact
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Purchase, Request for samples and documentsSales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
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Available from 1 piece!Our electronic device products are available through our authorized online distributors.
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Technical Support
R3121 Series