Overview
The NCP303LSN17T1G, produced by onsemi, is a second-generation ultra-low current voltage detector with a programmable time delay generator. This device is specifically 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, 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 | 1.666 | 1.7 | 1.734 |
| Detector Threshold Hysteresis (Pin 2, Vin Increasing) | V | 0.051 | 0.085 | 0.119 |
| Supply Current (Pin 2) | μA | 0.23 | 0.48 | 0.7 |
| Reset Output Current (Pin 1, Active Low) | mA | 0.01 | 1.0 | 2.0 |
| Delay Capacitor Pin Voltage (Pin 5) | V | -0.3 | - | Vin + 0.3 |
| Operating Ambient Temperature Range | °C | -40 | - | 125 |
| Storage Temperature Range | °C | -55 | - | 150 |
Key Features
- Ultra-low current consumption: Typical quiescent current of 0.5 μA.
- High accuracy undervoltage detector with hysteresis.
- Externally programmable time delay generator.
- Wide operating voltage range: 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 NCP303LSN17T1G is designed for use in portable microprocessor-based systems, particularly where extended battery life is essential. It is suitable for various applications including:
- Portable electronics such as smartphones, tablets, and laptops.
- IoT devices requiring low power consumption.
- Automotive systems needing robust and reliable voltage monitoring.
- Industrial control systems where precise voltage detection is critical.
Q & A
- What is the primary function of the NCP303LSN17T1G?
The primary function of the NCP303LSN17T1G is to act as a reset controller in microprocessor-based systems, ensuring reliable operation by detecting undervoltage conditions and providing a programmable time delay.
- What is the typical quiescent current of the NCP303LSN17T1G?
The typical quiescent current is 0.5 μA.
- What is the operating voltage range of the NCP303LSN17T1G?
The operating voltage range is from 0.8 V to 10 V.
- How does the programmable time delay generator work?
The programmable time delay generator allows for an external capacitor to set the delay time, providing flexibility in system design.
- What type of output does the NCP303LSN17T1G have?
The NCP303LSN17T1G has an open drain N-Channel output with an active low reset.
- What is the temperature range for the NCP303LSN17T1G?
The device is specified over the -40°C to +125°C temperature range.
- What are some common applications for the NCP303LSN17T1G?
Common applications include portable electronics, IoT devices, automotive systems, and industrial control systems.
- How does the undervoltage detector with hysteresis work?
The undervoltage detector with hysteresis ensures accurate detection of voltage levels and prevents erratic system reset operations by providing a stable threshold.
- What is the maximum operating voltage for the input power supply?
The maximum operating voltage for the input power supply is 10 V.
- What is the storage temperature range for the NCP303LSN17T1G?
The storage temperature range is from -55°C to 150°C.
