Overview
The NCV303LSN20T1G 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 NCV303LSN20T1G features a highly accurate undervoltage detector with hysteresis and an externally programmable time delay generator, preventing erratic system reset operations.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Detector Threshold (Pin 2, Vin Decreasing) | VDET− | 1.960 | 2.0 | 2.040 | V |
| Detector Threshold Hysteresis (Pin 2, Vin Increasing) | VHYS | 0.060 | 0.100 | 0.140 | V |
| Supply Current (Pin 2) | Iin | 0.23 | 0.48 | 1.3 | μA |
| Maximum Operating Voltage (Pin 2) | Vin(max) | 10 | V | ||
| Minimum Operating Voltage (Pin 2) | Vin(min) | 0.55 | 0.65 | 0.80 | V |
| Reset Output Current (Pin 1, Active Low) | IOUT | 0.01 | 1.0 | 2.0 | mA |
| Operating Ambient Temperature Range | TA | -40 | 125 | °C | |
| Delay Capacitor Pin Threshold Voltage (Pin 5) | VTCD | 0.99 | 1.34 | 1.68 | V |
Key Features
- Ultra-low current consumption of 0.5 μA typical, ensuring extended battery life in portable systems.
- High accuracy undervoltage detector 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, 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.
- Power management systems in consumer electronics and medical devices.
Q & A
- What is the primary function of the NCV303LSN20T1G?
The primary function is to act as a reset controller with an undervoltage detector and programmable time delay in microprocessor-based systems.
- What is the typical quiescent current of the NCV303LSN20T1G?
The typical quiescent current is 0.5 μA.
- What is the operating voltage range of the NCV303LSN20T1G?
The operating voltage range is from 0.8 V to 10 V.
- What types of output configurations are available for the NCV303LSN20T1G?
The device is available with open-drain N-Channel output and active low reset output.
- How is the time delay programmable in the NCV303LSN20T1G?
The time delay is programmable using an external capacitor connected to the delay capacitor pin.
- What is the detector threshold hysteresis for the NCV303LSN20T1G?
The detector threshold hysteresis is between 0.060 V and 0.140 V.
- What is the maximum operating temperature for the NCV303LSN20T1G?
The maximum operating temperature is +125°C.
- Is the NCV303LSN20T1G suitable for automotive applications?
Yes, it is suitable for automotive and other applications requiring unique site and control change requirements.
- What is the maximum output current for the active low reset output?
The maximum output current for the active low reset output is 2.0 mA.
- Does the NCV303LSN20T1G have ESD protection?
Yes, it contains ESD protection and exceeds the Human Body Model 2000 V per MIL-STD-883, Method 3015.
