Overview
The NCP302LSN43T1G is a second-generation ultra-low current voltage detector from onsemi, designed for use 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 prevents erratic system reset operations.
Key Specifications
| Characteristic | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Detector Threshold (VDET−) | V | 4.214 | 4.3 | 4.386 |
| Detector Threshold Hysteresis (VHYS) | V | 0.129 | 0.215 | 0.301 |
| Supply Current (Iin) | μA | 0.33 | 0.52 | 1.0 |
| Minimum Operating Voltage (Vin(min)) | V | 0.70 | - | - |
| Maximum Operating Voltage (Vin(max)) | V | - | - | 10 |
| Quiescent Current | μA | - | 0.5 | - |
| Operating Temperature Range | °C | -40 | - | 125 |
| Reset Output Current (IOUT) - Active Low | mA | 0.01 | 1.0 | 3.5 |
| Delay Capacitor Pin Threshold Voltage (VTCD) | V | 1.49 | 2.01 | 2.53 |
Key Features
- Highly accurate undervoltage detector with hysteresis.
- Externally programmable time delay generator.
- Ultra-low quiescent current of 0.5 μA typical.
- Wide operating voltage range from 0.8 V to 10 V.
- Complementary or open drain output configurations.
- Active low or active high reset 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 NCP302LSN43T1G?
The primary function of the NCP302LSN43T1G is to serve as an ultra-low current voltage detector with a programmable time delay generator, typically used as a reset controller in microprocessor-based systems.
- What is the typical quiescent current of the NCP302LSN43T1G?
The typical quiescent current of the NCP302LSN43T1G is 0.5 μA.
- What is the operating voltage range of the NCP302LSN43T1G?
The operating voltage range of the NCP302LSN43T1G is from 0.8 V to 10 V.
- What types of output configurations are available for the NCP302LSN43T1G?
The NCP302LSN43T1G is available with either complementary output or open drain N-Channel output configurations.
- What are the reset output options for the NCP302LSN43T1G?
The NCP302LSN43T1G offers both active low and active high reset output options.
- What is the temperature range over which the NCP302LSN43T1G is specified?
The NCP302LSN43T1G is specified over the −40°C to +125°C temperature range.
- Is the NCP302LSN43T1G suitable for automotive applications?
Yes, the NCP302LSN43T1G is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other critical applications.
- Is the NCP302LSN43T1G Pb-free and RoHS compliant?
Yes, the NCP302LSN43T1G is Pb-free and RoHS compliant.
- What are some typical applications of the NCP302LSN43T1G?
Typical applications include microprocessor reset controller, low battery detection, power fail indicator, and battery backup detection.
- How is the time delay generator programmed in the NCP302LSN43T1G?
The time delay generator in the NCP302LSN43T1G is externally programmable using a capacitor connected to the delay pin.
