Overview
The NCV303LSN42T1G is a second-generation ultra-low current voltage detector from onsemi, part of the NCP303 series. This device is designed for use as a reset controller in portable microprocessor-based systems where extended battery life is crucial. It features a highly accurate undervoltage detector with hysteresis and an externally programmable time delay generator, preventing erratic system reset operations.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| Input Power Supply Voltage (Pin 2) | Vin | 12 | V |
| Delay Capacitor Pin Voltage (Pin 5) | VCD | −0.3 to Vin + 0.3 | V |
| Output Voltage (Pin 1) | VOUT | −0.3 to Vin + 0.3 | V |
| Output Current (Pin 1) | IOUT | 70 | mA |
| Detector Threshold (Pin 2, Vin Decreasing) | VDET− | 4.116 to 4.284 | V |
| Detector Threshold Hysteresis (Pin 2, Vin Increasing) | VHYS | 0.126 to 0.210 | V |
| Quiescent Current | Iq | 0.5 | μA |
| Operating Ambient Temperature Range | TA | −40 to +125 | °C |
| Storage Temperature Range | Tstg | −55 to +150 | °C |
Key Features
- Ultra-low quiescent current of 0.5 μA typical
- High accuracy undervoltage threshold with 2.0% accuracy
- Externally programmable time delay generator
- Wide operating voltage range of 0.8 V to 10 V
- Complementary or open drain output configuration
- Active low or active high reset output
- Specified over the −40°C to +125°C temperature range
- AEC-Q100 qualified and PPAP capable for automotive and other applications requiring unique site and control change requirements
- 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 NCV303LSN42T1G?
The primary function of the NCV303LSN42T1G is to act as a reset controller in microprocessor-based systems, ensuring reliable system operation by detecting undervoltage conditions and providing a programmable time delay.
- What is the typical quiescent current of the NCV303LSN42T1G?
The typical quiescent current of the NCV303LSN42T1G is 0.5 μA.
- What is the operating voltage range of the NCV303LSN42T1G?
The operating voltage range of the NCV303LSN42T1G is from 0.8 V to 10 V.
- What types of output configurations are available for the NCV303 series?
The NCV303 series offers both complementary and open drain output configurations.
- What is the temperature range over which the NCV303LSN42T1G is specified?
The NCV303LSN42T1G is specified over the −40°C to +125°C temperature range.
- Is the NCV303LSN42T1G AEC-Q100 qualified?
- What is the detector threshold voltage range for the NCV303LSN42T1G?
The detector threshold voltage range for the NCV303LSN42T1G is from 4.116 V to 4.284 V.
- How is the time delay in the NCV303LSN42T1G programmed?
The time delay in the NCV303LSN42T1G is externally programmable using a capacitor connected to the delay pin.
- What is the maximum output current of the NCV303LSN42T1G?
The maximum output current of the NCV303LSN42T1G is 70 mA.
- Is the NCV303LSN42T1G Pb-free and RoHS compliant?
- What are some typical applications of the NCV303LSN42T1G?
Typical applications include microprocessor reset controllers, low battery detection, power fail indicators, and battery backup detection.
