Overview
The NCP300LSN28T1G is a part of the NCP300 and 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 NCP300LSN28T1G features a highly accurate undervoltage detector with hysteresis, preventing erratic system reset operations as the comparator threshold is crossed.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Detect Threshold (Vin Decreasing) | VDET− | 2.744 | 2.8 | 2.856 | V |
| Detect Threshold Hysteresis (Vin Increasing) | VHYS | 0.084 | 0.14 | 0.196 | V |
| Supply Current (Vin = 2.7 V) | Iin | 0.25 | 0.5 | 1.3 | μA |
| Maximum Operating Voltage | Vin(max) | 10 | V | ||
| Minimum Operating Voltage (TA = 25°C) | Vin(min) | 0.55 | 0.65 | 0.8 | V |
| Reset Output Current (Active Low, VOUT = 0.05 V, Vin = 0.70 V) | IOUT | 0.01 | 0.05 | 0.5 | mA |
| Propagation Delay Input to Output | tpHL/tpLH | 55 | 300 | ns |
Key Features
- Quiescent Current of 0.5 μA Typical
- High Accuracy Undervoltage Threshold of 2.0%
- Wide Operating Voltage Range of 0.8 V to 10 V
- Complementary or Open Drain Reset Output
- Active Low or Active High Reset Output
- Specified Over the −40°C to +125°C Temperature Range
- NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q100 Qualified and PPAP Capable
- 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 NCP300LSN28T1G?
The primary function of the NCP300LSN28T1G is to act as a reset controller in microprocessor-based systems, ensuring accurate undervoltage detection.
- What is the typical quiescent current of the NCP300LSN28T1G?
The typical quiescent current is 0.5 μA.
- What is the operating voltage range of the NCP300LSN28T1G?
The operating voltage range is from 0.8 V to 10 V.
- What types of reset outputs are available for the NCP300LSN28T1G?
The device offers both complementary and open drain reset outputs, with options for active low or active high reset signals.
- Is the NCP300LSN28T1G suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other applications requiring unique site and control change requirements.
- What is the temperature range for the NCP300LSN28T1G?
The device is specified over the −40°C to +125°C temperature range.
- What is the maximum operating voltage for the NCP300LSN28T1G?
The maximum operating voltage is 10 V.
- What is the minimum operating voltage for the NCP300LSN28T1G at 25°C?
The minimum operating voltage at 25°C is 0.55 V.
- How does the hysteresis in the NCP300LSN28T1G prevent erratic system reset operations?
The hysteresis prevents erratic system reset operations by ensuring that the comparator threshold is not crossed repeatedly due to minor voltage fluctuations.
- Is the NCP300LSN28T1G Pb-Free and RoHS compliant?
Yes, the device is Pb-Free and RoHS compliant.
