Overview
The NCP302LSN33T1G is a part of the NCP302 series, which are second-generation 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 NCP302 series features highly accurate undervoltage detection with hysteresis and an externally programmable time delay generator, preventing erratic system reset operations.
Key Specifications
| Characteristic | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Detector Threshold (VDET−) | V | 3.234 | 3.3 | 3.366 |
| Detector Threshold Hysteresis (VHYS) | V | 0.081 | 0.135 | 0.189 |
| Supply Current (Iin) | μA | 0.25 | 0.50 | 0.9 |
| Maximum Operating Voltage (Vin) | V | 10 | ||
| Minimum Operating Voltage (Vin) | V | 0.70 | ||
| Reset Output Current (IOUT) - Active Low | mA | 0.01 | 1.0 | 3.5 |
| Reset Output Current (IOUT) - Active High | mA | 6.3 | 11 | |
| Operating Ambient Temperature Range | °C | -40 | 125 | |
| Storage Temperature Range | °C | -55 | 150 |
Key Features
- Ultra-low quiescent current of 0.5 μA typical
- High accuracy undervoltage threshold with hysteresis
- Externally programmable time delay generator
- Wide operating voltage range of 0.8 V to 10 V
- Complementary or open drain output configurations
- Active low or active high reset output options
- Specified over the -40°C to +125°C temperature range
Applications
The NCP302LSN33T1G is ideal for use in portable microprocessor-based systems, such as handheld devices, battery-powered equipment, and other applications where low power consumption and reliable reset functionality are critical. It is also suitable for automotive and industrial applications requiring robust and accurate voltage monitoring.
Q & A
- What is the primary function of the NCP302LSN33T1G?
The primary function of the NCP302LSN33T1G is to act as a reset controller in microprocessor-based systems, ensuring reliable operation by monitoring the voltage and generating a reset signal if the voltage falls below a specified threshold.
- What is the typical quiescent current of the NCP302LSN33T1G?
The typical quiescent current of the NCP302LSN33T1G is 0.5 μA.
- What is the operating voltage range of the NCP302LSN33T1G?
The operating voltage range of the NCP302LSN33T1G is from 0.8 V to 10 V.
- Can the time delay of the NCP302LSN33T1G be programmed?
- What types of reset outputs are available for the NCP302LSN33T1G?
The NCP302LSN33T1G offers both active low and active high reset output configurations.
- What is the temperature range over which the NCP302LSN33T1G is specified?
The NCP302LSN33T1G is specified over the -40°C to +125°C temperature range.
- What is the detector threshold hysteresis of the NCP302LSN33T1G?
The detector threshold hysteresis of the NCP302LSN33T1G is between 0.081 V and 0.189 V.
- How does the NCP302LSN33T1G prevent erratic system reset operations?
The NCP302LSN33T1G prevents erratic system reset operations through its highly accurate undervoltage detection with hysteresis and an externally programmable time delay generator.
- What are some typical applications for the NCP302LSN33T1G?
Typical applications include portable microprocessor-based systems, handheld devices, battery-powered equipment, and automotive and industrial applications.
- What is the maximum operating voltage for the NCP302LSN33T1G?
The maximum operating voltage for the NCP302LSN33T1G is 10 V.
- What is the storage temperature range for the NCP302LSN33T1G?
The storage temperature range for the NCP302LSN33T1G is from -55°C to 150°C.
