Overview
The NCP303LSN09T1G is a second-generation ultra-low current voltage detector produced by onsemi. 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, which prevents erratic system reset operations.
Key Specifications
| Characteristic | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Detector Threshold (Vdet-) | V | 0.882 | 0.9 | 0.918 |
| Detector Threshold Hysteresis (VHYS) | V | 0.027 | 0.045 | 0.063 |
| Supply Current (Iin) | μA | 0.20 | 0.45 | 0.80 |
| Reset Output Current (IOUT) - Active Low | mA | 0.05 | 0.5 | 2.0 |
| Operating Voltage Range (Vin) | V | 0.8 | - | 10 |
| Operating Ambient Temperature Range | °C | -40 | - | 125 |
| Delay Capacitor Pin Voltage (VCD) | V | -0.3 | - | Vin + 0.3 |
| Output Voltage (VOUT) | V | -0.3 | - | Vin + 0.3 |
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
- Open drain N-Channel output with active low reset
- Specified over the -40°C to +125°C temperature range
Applications
The NCP303LSN09T1G 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 essential.
Q & A
- What is the primary function of the NCP303LSN09T1G?
The primary function is to act as a reset controller in microprocessor-based systems, ensuring reliable system reset operations. - What is the typical quiescent current of the NCP303LSN09T1G?
The typical quiescent current is 0.5 μA. - What is the operating voltage range of the NCP303LSN09T1G?
The operating voltage range is from 0.8 V to 10 V. - What type of output does the NCP303LSN09T1G have?
The output is an open drain N-Channel with an active low reset. - Can the time delay be programmed externally?
Yes, the time delay can be programmed externally using a capacitor. - What is the temperature range for the NCP303LSN09T1G?
The device is specified over the -40°C to +125°C temperature range. - What is the detector threshold hysteresis for the NCP303LSN09T1G?
The detector threshold hysteresis is between 0.027 V and 0.063 V. - Is the NCP303LSN09T1G suitable for automotive applications?
Yes, it can be used in automotive and other applications requiring unique site and control change requirements, denoted by the NCV prefix. - What is the maximum operating voltage for the input power supply?
The maximum operating voltage for the input power supply is 10 V. - Is the NCP303LSN09T1G still in production?
No, the NCP303LSN09T1G is obsolete and no longer manufactured.
