Overview
The NCV302LSN30T1G is a part of the NCP302 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 NCV302LSN30T1G 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 | 2.940 | 3.0 | 3.060 |
| Detector Threshold Hysteresis (VHYS) | V | 0.090 | 0.150 | 0.210 |
| Supply Current (Iin) | μA | 0.25 | 0.50 | 1.0 |
| Maximum Operating Voltage (Vin) | V | - | - | 10 |
| Minimum Operating Voltage (Vin) | V | 0.70 | - | - |
| Quiescent Current | μA | - | 0.5 | - |
| Reset Output Current (IOUT) - Active Low | mA | 0.01 | 1.0 | 2.0 |
| Operating Ambient Temperature Range | °C | -40 | - | 125 |
| Delay Capacitor Pin Threshold Voltage (VTCD) | V | 1.49 | 2.01 | 2.53 |
Key Features
- Ultra-low quiescent current of 0.5 μA typical, ensuring extended battery life in portable systems.
- High accuracy undervoltage threshold with hysteresis to prevent erratic system reset operations.
- Externally programmable time delay generator to customize the reset timing according to system requirements.
- Wide operating voltage range from 0.8 V to 10 V, making it versatile for various applications.
- Complementary or open drain output configurations available, including active low and active high reset options.
- Specified over a broad temperature range of -40°C to +125°C, ensuring reliability in diverse environments.
Applications
- Portable microprocessor-based systems where battery life is critical.
- Reset controllers in embedded systems, such as handheld devices and IoT devices.
- Automotive and industrial applications requiring robust and reliable voltage monitoring.
- Low-power consumer electronics, including wearables and smart home devices.
Q & A
- What is the primary function of the NCV302LSN30T1G?
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 NCV302LSN30T1G?
The typical quiescent current is 0.5 μA.
- What is the operating voltage range of the NCV302LSN30T1G?
The operating voltage range is from 0.8 V to 10 V.
- What types of output configurations are available for the NCV302 series?
The NCV302 series offers complementary output configurations (active high and active low) and open drain N-Channel output configurations.
- How is the time delay programmable in the NCV302LSN30T1G?
The time delay is programmable using an external capacitor connected to the delay capacitor pin.
- What is the temperature range over which the NCV302LSN30T1G is specified?
The device is specified over a temperature range of -40°C to +125°C.
- What is the detector threshold hysteresis for the NCV302LSN30T1G?
The detector threshold hysteresis (VHYS) is between 0.090 V and 0.210 V.
- What are some common applications for the NCV302LSN30T1G?
Common applications include portable microprocessor-based systems, automotive electronics, and low-power consumer electronics.
- How does the NCV302LSN30T1G ensure reliable system reset operations?
The device ensures reliable system reset operations through its high accuracy undervoltage detector with hysteresis and an externally programmable time delay generator.
- What is the maximum operating voltage for the NCV302LSN30T1G?
The maximum operating voltage is 10 V.
