Overview
The NCP301LSN20T1 is a part of the NCP301 series, which are second-generation ultra-low current voltage detectors designed by onsemi. These devices are specifically tailored for use as reset controllers in portable microprocessor-based systems where extended battery life is crucial. The NCP301 series features highly accurate undervoltage detection with hysteresis, preventing erratic system reset operations as the comparator threshold is crossed.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Detector Threshold (Pin 2, Vin Decreasing) | VDET− | 1.96 | 2.00 | 2.04 | V |
| Detector Threshold Hysteresis (Pin 2, Vin Increasing) | VHYS | 0.06 | 0.10 | 0.14 | V |
| Supply Current (Pin 2) | Iin | 0.23 | 0.48 | 0.8 | μA |
| Maximum Operating Voltage (Pin 2) | Vin(max) | 10 | V | ||
| Minimum Operating Voltage (Pin 2) | Vin(min) | 0.55 | 0.65 | 0.80 | V |
| Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) | IOUT | 0.01 | 1.0 | 3.5 | mA |
| Output Transition Time (High to Low) | tpHL | 55 | 300 | ns | |
| Output Transition Time (Low to High) | tpLH | 55 | 300 | ns |
Key Features
- Ultra-low quiescent current of 0.5 μA typical
- High accuracy undervoltage threshold with 2.0% tolerance
- Wide operating voltage range from 0.8 V to 10 V
- Complementary or open drain reset output configurations
- Active low or active high reset output options
- Specified over the −40°C to +125°C temperature range
- AEC-Q100 qualified and PPAP capable for automotive and other critical applications
- Pb-free and RoHS compliant
Applications
- Microprocessor reset controller
- Low battery detection
- Power fail indicator
- Battery backup detection
Q & A
- What is the primary function of the NCP301LSN20T1?
The primary function of the NCP301LSN20T1 is to act as a voltage detector and reset controller in microprocessor-based systems.
- What is the typical quiescent current of the NCP301LSN20T1?
The typical quiescent current is 0.5 μA.
- What are the available reset output configurations for the NCP301 series?
The NCP301 series offers both complementary and open drain reset output configurations.
- What are the temperature specifications for the NCP301LSN20T1?
The device is specified over the −40°C to +125°C temperature range.
- Is the NCP301LSN20T1 suitable for automotive applications?
- What is the maximum operating voltage for the NCP301LSN20T1?
The maximum operating voltage is 10 V.
- What is the minimum operating voltage for the NCP301LSN20T1?
The minimum operating voltage is 0.55 V to 0.80 V depending on the temperature.
- Does the NCP301LSN20T1 have hysteresis in its undervoltage detection?
- Is the NCP301LSN20T1 Pb-free and RoHS compliant?
- What are some typical applications of the NCP301LSN20T1?
