Overview
The NCP303LSN10T1G is a second-generation ultra-low current voltage detector produced by ON Semiconductor. This device is part of the NCP303 series, which is designed for use as reset controllers in portable microprocessor-based systems where extended battery life is crucial. The NCP303LSN10T1G features a highly accurate undervoltage detector with hysteresis and an externally programmable time delay generator, making it ideal for preventing erratic system reset operations.
Key Specifications
| Characteristic | Unit | Typical | Minimum | Maximum |
|---|---|---|---|---|
| Input Power Supply Voltage (Vin) | V | - | 0.8 | 10 |
| Quiescent Current (Iin) | μA | 0.5 | - | 1.3 |
| Detector Threshold (Vdet-) | V | 2.00 | 1.94 | 2.06 |
| Detector Threshold Hysteresis (Vhys) | V | 0.15 | 0.09 | 0.21 |
| Delay Capacitor Pin Threshold Voltage (Vtcd) | V | 1.68 | 0.99 | 2.53 |
| Delay Capacitor Pin Sink Current (Icd) | μA | 200 | 2.0 | 3600 |
| Output Voltage (Vout) | V | - | -0.3 | Vin + 0.3 |
| Output Current (Iout) | mA | - | - | 70 |
| Operating Ambient Temperature Range | °C | - | -40 | 125 |
Key Features
- Ultra-low quiescent current of 0.5 μA typical, ensuring extended battery life in portable systems.
- Highly accurate 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.
- Open drain N-Channel output with an active low reset output for the NCP303 series.
- Specified over the -40°C to +125°C temperature range, ensuring reliability across a broad temperature spectrum.
Applications
The NCP303LSN10T1G is designed for use in portable microprocessor-based systems where low power consumption and reliable reset functionality are critical. Typical applications include:
- Portable electronics such as smartphones, tablets, and laptops.
- Wearable devices like smartwatches and fitness trackers.
- IoT devices that require low power and reliable operation.
- Automotive systems where the NCV prefix variants are used for unique site and control change requirements.
Q & A
- What is the primary function of the NCP303LSN10T1G?
The primary function of the NCP303LSN10T1G is to act as a reset controller in microprocessor-based systems, ensuring reliable operation by detecting undervoltage conditions and generating a reset signal with a programmable time delay.
- What is the quiescent current of the NCP303LSN10T1G?
The quiescent current of the NCP303LSN10T1G is typically 0.5 μA.
- What is the operating voltage range of the NCP303LSN10T1G?
The operating voltage range of the NCP303LSN10T1G is from 0.8 V to 10 V.
- How is the time delay for the reset signal programmed?
The time delay for the reset signal is programmed using an external capacitor connected to the delay capacitor pin.
- What type of output does the NCP303LSN10T1G have?
The NCP303LSN10T1G has an open drain N-Channel output with an active low reset output.
- What is the temperature range over which the NCP303LSN10T1G is specified?
The NCP303LSN10T1G is specified over the -40°C to +125°C temperature range.
- What are some typical applications for the NCP303LSN10T1G?
Typical applications include portable electronics, wearable devices, IoT devices, and automotive systems.
- How does the NCP303LSN10T1G prevent erratic system reset operations?
The NCP303LSN10T1G prevents erratic system reset operations through its highly accurate undervoltage detector with hysteresis and an externally programmable time delay generator.
- What is the maximum output current of the NCP303LSN10T1G?
The maximum output current of the NCP303LSN10T1G is 70 mA.
- Is the NCP303LSN10T1G suitable for automotive applications?
Yes, the NCP303LSN10T1G, especially with the NCV prefix, is suitable for automotive and other applications requiring unique site and control change requirements.
