Overview
The NCP301LSN40T1G is a part of the NCP301 series of ultra-low current voltage detectors produced by onsemi. These devices are specifically designed 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 to prevent erratic system reset operations.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Detect Threshold (Vin Decreasing) | VDET− | 3.92 | 4.0 | 4.08 | V |
| Detect Threshold Hysteresis (Vin Increasing) | VHYS | 0.12 | 0.20 | 0.28 | V |
| Supply Current (Vin = 4.0 V) | Iin | 0.25 | 0.50 | 0.8 | μA |
| Maximum Operating Voltage | Vin(max) | - | - | 10 | V |
| Minimum Operating Voltage | Vin(min) | 0.55 | 0.65 | 0.70 | V |
| Reset Output Current (Active Low) | IOUT | 0.01 | 1.0 | 3.5 | mA |
| Output Transition Time (High to Low) | tpHL | - | - | 300 | ns |
| Output Transition Time (Low to High) | tpLH | - | - | 300 | ns |
| Package Type | - | - | - | TSOP-5 / SOT23-5 | - |
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
- 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 NCP301LSN40T1G?
The primary function of the NCP301LSN40T1G is to act as a reset controller in microprocessor-based systems, ensuring proper system reset during undervoltage conditions.
- What is the typical quiescent current of the NCP301LSN40T1G?
The typical quiescent current is 0.5 μA.
- What are the available reset output configurations for the NCP301 series?
The NCP301 series offers both active low and active high reset output configurations, as well as complementary and open drain output types.
- What is the operating temperature range for the NCP301LSN40T1G?
The device is specified to operate over the −40°C to +125°C temperature range.
- Is the NCP301LSN40T1G suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other critical applications.
- What is the package type of the NCP301LSN40T1G?
The device is available in the TSOP-5 / SOT23-5 package.
- What are the typical applications of the NCP301LSN40T1G?
Typical applications include microprocessor reset controllers, low battery detection, power fail indicators, and battery backup detection.
- What is the maximum operating voltage for the NCP301LSN40T1G?
The maximum operating voltage is 10 V.
- Does the NCP301LSN40T1G have any environmental compliance certifications?
Yes, it is Pb-free and RoHS compliant.
- How does the hysteresis in the NCP301LSN40T1G help in system operation?
The hysteresis prevents erratic system reset operations as the comparator threshold is crossed, ensuring stable system behavior.
