Overview
The NCV303LSN31T1G 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 NCV303LSN31T1G 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 |
|---|---|---|---|---|
| Input Power Supply Voltage (Pin 2) | V | 0.8 | - | 10 |
| Detector Threshold (Pin 2, Vin Decreasing) | V | 3.038 | 3.1 | 3.162 |
| Detector Threshold Hysteresis (Pin 2, Vin Increasing) | V | 0.093 | 0.155 | 0.217 |
| Supply Current (Pin 2) | μA | 0.25 | 0.50 | 1.0 |
| Quiescent Current | μA | - | 0.5 | - |
| Output Voltage (Pin 1) | V | -0.3 | - | Vin + 0.3 |
| Output Current (Pin 1) | mA | - | - | 70 |
| Operating Ambient Temperature Range | °C | -40 | - | 125 |
| Storage Temperature Range | °C | -55 | - | 150 |
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 of 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.
Applications
The NCV303LSN31T1G is ideal for use in portable microprocessor-based systems, such as handheld devices, battery-powered equipment, and other applications where extended battery life and reliable reset functionality are essential.
- Portable electronics (e.g., smartphones, tablets).
- Battery-powered devices (e.g., wearables, IoT devices).
- Automotive systems requiring robust voltage monitoring.
- Industrial control systems needing reliable reset mechanisms.
Q & A
- What is the primary function of the NCV303LSN31T1G?
The primary function is to act as a reset controller with an undervoltage detector and programmable time delay generator in microprocessor-based systems.
- What is the typical quiescent current of the NCV303LSN31T1G?
The typical quiescent current is 0.5 μA.
- What is the operating voltage range of the NCV303LSN31T1G?
The operating voltage range is from 0.8 V to 10 V.
- What types of output configurations are available for the NCV303LSN31T1G?
The device is available with either complementary output or open drain N-Channel output configurations.
- What is the temperature range over which the NCV303LSN31T1G is specified?
The device is specified over the -40°C to +125°C temperature range.
- How is the time delay generator programmed in the NCV303LSN31T1G?
The time delay generator is externally programmable using a capacitor connected to the delay pin.
- What is the detector threshold voltage for the NCV303LSN31T1G?
The detector threshold voltage is between 3.038 V and 3.162 V when Vin is decreasing.
- What is the hysteresis of the detector threshold?
The hysteresis is between 0.093 V and 0.217 V.
- What are some typical applications for the NCV303LSN31T1G?
Typical applications include portable electronics, battery-powered devices, automotive systems, and industrial control systems.
- What is the maximum output current of the NCV303LSN31T1G?
The maximum output current is 70 mA.
