Overview
The NCP303LSN24T1G is a second-generation ultra-low current voltage detector from ON Semiconductor. It is designed for use in single-channel open-drain or open-collector power-on reset applications, particularly in portable microprocessor-based systems where extended battery life is crucial. This device features a highly accurate undervoltage detector with hysteresis and an externally programmable time delay generator, which helps prevent erratic system reset operations.
Key Specifications
| Rating | 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 |
| Thermal Resistance Junction-to-Air | RJA | 250 | °C/W |
| Maximum Junction Temperature | TJ | +150 | °C |
| Operating Ambient Temperature Range | TA | −40 to +125 | °C |
| Storage Temperature Range | Tstg | −55 to +150 | °C |
| Minimum Operating Voltage (Pin 2) at TA = 25°C | Vin(min) | 0.55 | V |
| Detector Threshold (Pin 2, Vin Decreasing) at TA = 25°C | VDET− | 2.4 | V |
| Detector Threshold Hysteresis (Pin 2, Vin Increasing) | VHYS | 0.09 to 0.21 | V |
Key Features
- Ultra-low quiescent current of 0.5 μA typical, ensuring extended battery life in portable systems.
- High accuracy undervoltage threshold with hysteresis to prevent erratic system reset operations.
- Externally programmable time delay generator using an external capacitor.
- Wide operating voltage range of 0.8 V to 10 V.
- Open-drain N-Channel output configuration with active low reset output.
- Pb-free and RoHS compliant, making it suitable for a variety of applications.
- AEC-Q100 qualified and PPAP capable for automotive and other critical applications.
Applications
- Microprocessor reset controller.
- Low battery detection.
- Power fail indicator.
- Battery backup detection.
Q & A
- What is the primary function of the NCP303LSN24T1G?
The NCP303LSN24T1G is a voltage detector designed to monitor the voltage level and provide a reset signal when the voltage falls below a specified threshold.
- What is the typical quiescent current of the NCP303LSN24T1G?
The typical quiescent current is 0.5 μA, which is ultra-low and suitable for battery-powered devices.
- What is the operating voltage range of the NCP303LSN24T1G?
The device operates over a wide voltage range of 0.8 V to 10 V.
- How is the time delay generator programmed in the NCP303LSN24T1G?
The time delay is externally programmable using an external capacitor connected to the CD pin.
- What type of output configuration does the NCP303LSN24T1G have?
The device has an open-drain N-Channel output configuration with an active low reset output.
- Is the NCP303LSN24T1G 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 maximum junction temperature of the NCP303LSN24T1G?
The maximum junction temperature is +150°C.
- What is the storage temperature range for the NCP303LSN24T1G?
The storage temperature range is −55°C to +150°C.
- What is the detector threshold voltage for the NCP303LSN24T1G at 25°C?
The detector threshold voltage is approximately 2.4 V.
- Is the NCP303LSN24T1G Pb-free and RoHS compliant?
Yes, the device is Pb-free and RoHS compliant.
