Overview
The NCP303LSN33T1G 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 | Typ | Max |
|---|---|---|---|---|
| Detector Threshold (VDET−) | V | 3.234 | 3.3 | 3.366 |
| Detector Threshold Hysteresis (VHYS) | V | 0.099 | 0.165 | 0.231 |
| Supply Current (Iin) | μA | 0.25 | 0.50 | 1.0 |
| Maximum Operating Voltage (Vin) | V | - | - | 10 |
| Minimum Operating Voltage (Vin) | V | 0.70 | - | - |
| Reset Output Current (IOUT) - Active Low | mA | 0.01 | 1.0 | 2.0 |
| Delay Capacitor Pin Threshold Voltage (VTCD) | V | 1.65 | 2.23 | 2.81 |
| Delay Pullup Resistance (RD) | MΩ | 0.5 | 1.0 | 2.0 |
| Operating Ambient Temperature Range | °C | -40 | - | 125 |
Key Features
- Ultra-low current consumption of 0.5 μA typical.
- High accuracy undervoltage threshold with 2.0% tolerance.
- Externally programmable time delay generator.
- Wide operating voltage range from 0.8 V to 10 V.
- Complementary or open drain output configurations.
- Active low or active high reset options.
- Specified over the -40°C to +125°C temperature range.
Applications
The NCP303LSN33T1G is ideal for use in portable microprocessor-based systems, such as handheld devices, battery-powered equipment, and other applications where low power consumption and reliable reset functionality are essential.
Q & A
- What is the primary function of the NCP303LSN33T1G?
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 NCP303LSN33T1G?
The typical quiescent current is 0.5 μA.
- What is the operating voltage range of the NCP303LSN33T1G?
The operating voltage range is from 0.8 V to 10 V.
- What types of output configurations are available for the NCP303LSN33T1G?
The device is available with either complementary or open drain output configurations.
- How is the time delay programmed in the NCP303LSN33T1G?
The time delay is externally programmable using a capacitor connected to the delay pin.
- What is the detector threshold hysteresis for the NCP303LSN33T1G?
The detector threshold hysteresis (VHYS) ranges from 0.099 V to 0.231 V.
- What is the maximum operating temperature for the NCP303LSN33T1G?
The maximum operating temperature is +125°C.
- What are the typical supply current values for the NCP303LSN33T1G?
The typical supply current values range from 0.25 μA to 1.0 μA.
- Can the NCP303LSN33T1G be used in automotive applications?
Yes, the NCV prefix versions are available for automotive and other applications requiring unique site and control change requirements.
- What is the maximum junction temperature for the NCP303LSN33T1G?
The maximum junction temperature is +150°C.
