Overview
The NCV303LSN44T1G is a part of the NCP303 series, which are second-generation ultra-low current voltage detectors produced by onsemi. These devices are designed for use as reset controllers in portable microprocessor-based systems where extended battery life is crucial. The NCV303LSN44T1G features a highly accurate undervoltage detector 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 | 4.365 | 4.410 | 4.590 |
| Detector Threshold Hysteresis (VHYS) | V | 0.135 | 0.225 | 0.315 |
| Supply Current (Iin) | μA | 0.33 | 0.52 | 1.0 |
| Input Power Supply Voltage (Vin) | V | 0.8 | - | 10 |
| Output Voltage (VOUT) | V | -0.3 | - | Vin + 0.3 |
| Output Current (IOUT) | mA | - | - | 70 |
| Operating Ambient Temperature Range | °C | -40 | - | 125 |
| Delay Capacitor Pin Voltage (VCD) | V | -0.3 | - | Vin + 0.3 |
Key Features
- Ultra-low quiescent current of 0.5 μA typical
- High accuracy undervoltage threshold with 2.0% tolerance
- 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
- Complementary output configuration available in other models of the series
Applications
The NCV303LSN44T1G 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. It is also suitable for automotive and industrial applications requiring robust voltage monitoring and reset control.
Q & A
- What is the primary function of the NCV303LSN44T1G? The primary function is to act as a reset controller in microprocessor-based systems, ensuring reliable system operation by monitoring voltage levels and generating a reset signal when necessary.
- What is the typical quiescent current of the NCV303LSN44T1G? The typical quiescent current is 0.5 μA.
- What is the operating voltage range of the NCV303LSN44T1G? The operating voltage range is from 0.8 V to 10 V.
- How is the time delay for the reset signal programmed? The time delay is externally programmable using a capacitor connected to the delay pin.
- What type of output does the NCV303LSN44T1G have? The NCV303LSN44T1G has an open drain N-Channel output with an active low reset.
- What is the temperature range over which the NCV303LSN44T1G is specified? The device is specified over the -40°C to +125°C temperature range.
- Is the NCV303LSN44T1G suitable for automotive applications? Yes, it is suitable for automotive and other applications requiring unique site and control change requirements.
- How accurate is the undervoltage threshold of the NCV303LSN44T1G? The undervoltage threshold has a high accuracy of 2.0% tolerance.
- What is the maximum output current of the NCV303LSN44T1G? The maximum output current is 70 mA.
- Can the NCV303LSN44T1G be used in industrial applications? Yes, it is suitable for industrial applications requiring robust voltage monitoring and reset control.
