Overview
The NCP303LSN36T1G is a second-generation ultra-low current voltage detector from onsemi, designed for use as a reset controller in portable microprocessor-based systems where extended battery life is crucial. This device 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 | Max | |
|---|---|---|---|---|
| Input Power Supply Voltage (Pin 2) | V | 0.55 | 3.6 | 10 |
| Detector Threshold (Pin 2, Vin Decreasing) | V | 3.528 | 3.6 | 3.672 |
| Detector Threshold Hysteresis (Pin 2, Vin Increasing) | V | 0.108 | 0.180 | 0.252 |
| Supply Current (Pin 2) | μA | 0.33 | 0.52 | 1.4 |
| Output Voltage (Pin 1) | V | -0.3 | - | Vin + 0.3 |
| Output Current (Pin 1) | mA | - | - | 70 |
| 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 quiescent current of 0.5 μA typical
- High accuracy undervoltage threshold with 2.0% tolerance
- Externally programmable time delay generator
- Wide operating voltage range of 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
- Compliant with automotive and other applications requiring unique site and control change requirements (NCV prefix available)
Applications
The NCP303LSN36T1G is designed for use in portable microprocessor-based systems, including:
- Battery-powered devices where extended battery life is critical
- Automotive systems requiring robust voltage monitoring
- Industrial control systems needing reliable reset functionality
- Consumer electronics requiring low power consumption and accurate voltage detection
Q & A
- What is the primary function of the NCP303LSN36T1G?
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 NCP303LSN36T1G?
The typical quiescent current is 0.5 μA.
- What is the operating voltage range of the NCP303LSN36T1G?
The operating voltage range is from 0.8 V to 10 V.
- What type of output does the NCP303LSN36T1G have?
The device has an open drain N-Channel output with an active low reset.
- How is the time delay programmed in the NCP303LSN36T1G?
The time delay is externally programmable using a capacitor connected to the delay pin.
- What is the temperature range over which the NCP303LSN36T1G is specified?
The device is specified over the -40°C to +125°C temperature range.
- What are some common applications for the NCP303LSN36T1G?
Common applications include battery-powered devices, automotive systems, industrial control systems, and consumer electronics.
- What is the detector threshold hysteresis for the NCP303LSN36T1G?
The detector threshold hysteresis is between 0.108 V and 0.252 V.
- What is the maximum output current of the NCP303LSN36T1G?
The maximum output current is 70 mA.
- Is the NCP303LSN36T1G suitable for automotive applications?
Yes, it is suitable for automotive and other applications requiring unique site and control change requirements.
