Overview
The NCP302LSN20T1 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 NCP302LSN20T1 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 | 0.7 | μA |
| Maximum Operating Voltage (Pin 2) | Vin(max) | 10 | V | ||
| Minimum Operating Voltage (Pin 2) | Vin(min) | 0.55 | 0.65 | 0.70 | V |
| Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) | IOUT | 0.01 | 1.0 | 2.0 | mA |
| Delay Capacitor Pin Sink Current (Pin 5) | ICD | 2.0 | 200 | 3600 | μA |
| Delay Pullup Resistance (Pin 5) | RD | 0.5 | 1.0 | 2.0 | MΩ |
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 options, including active low and active high reset configurations.
- Specified over a temperature range of −40°C to +125°C, ensuring reliability in diverse environmental conditions.
- Pb-free and RoHS compliant, with AEC-Q100 qualification for automotive and other critical applications.
Applications
- Microprocessor reset controllers in portable and battery-powered devices.
- Low battery detection systems to ensure proper shutdown or alert mechanisms.
- Automotive and industrial systems requiring robust and reliable voltage monitoring.
- Consumer electronics such as handheld devices, wearables, and IoT devices.
Q & A
- What is the primary function of the NCP302LSN20T1?
The primary function of the NCP302LSN20T1 is to act as a reset controller in microprocessor-based systems, ensuring proper system reset operations during undervoltage conditions.
- What is the typical quiescent current of the NCP302LSN20T1?
The typical quiescent current of the NCP302LSN20T1 is 0.5 μA.
- What is the operating voltage range of the NCP302LSN20T1?
The operating voltage range of the NCP302LSN20T1 is from 0.8 V to 10 V.
- Can the time delay of the NCP302LSN20T1 be programmed externally?
- What types of output configurations are available for the NCP302 series?
The NCP302 series offers complementary output devices with active high or active low reset configurations, as well as open drain N-Channel output with an active low reset.
- Is the NCP302LSN20T1 RoHS compliant and Pb-free?
- What is the temperature range over which the NCP302LSN20T1 is specified?
The NCP302LSN20T1 is specified over a temperature range of −40°C to +125°C.
- What are some typical applications of the NCP302LSN20T1?
- Does the NCP302LSN20T1 have ESD protection?
- Is the NCP302LSN20T1 AEC-Q100 qualified?
