Overview
The NCP302LSN47T1G is a second-generation ultra-low current voltage detector produced by onsemi. This device is part of the NCP302 series, which is designed for use as reset controllers 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 | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Power Supply Voltage (Pin 2) | Vin | - | - | 12 | V |
| Output Voltage (Pin 1) | VOUT | -0.3 | - | Vin + 0.3 | V |
| Output Current (Pin 1) | IOUT | - | - | 70 | mA |
| Thermal Resistance Junction-to-Air | RJA | - | - | 250 | °C/W |
| Maximum Junction Temperature | TJ | - | - | +150 | °C |
| Operating Ambient Temperature Range | TA | -40 | - | +125 | °C |
| Storage Temperature Range | Tstg | -55 | - | +150 | °C |
| Detector Threshold (Pin 2, Vin Decreasing) | VDET- | 4.410 | 4.365 | 4.500 | V |
| Detector Threshold Hysteresis (Pin 2, Vin Increasing) | VHYS | 0.135 | 0.225 | 0.315 | V |
| Supply Current (Pin 2) | Iin | - | - | 1.3 | μA |
Key Features
- Ultra-low current consumption (typical quiescent current of 0.5 μA).
- High accuracy undervoltage threshold with hysteresis.
- Externally programmable time delay generator.
- Wide operating voltage range of 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.
- Available in SOT-23-5 Thin, TSOT-23-5 Surface Mount package.
Applications
The NCP302LSN47T1G 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 voltage monitoring are essential. It is also suitable for automotive and other applications requiring unique site and control change requirements.
Q & A
- What is the primary function of the NCP302LSN47T1G? The primary function is to act as a reset controller with an undervoltage detector and programmable time delay generator.
- What is the typical quiescent current of the NCP302LSN47T1G? The typical quiescent current is 0.5 μA.
- What is the operating voltage range of the NCP302LSN47T1G? The operating voltage range is from 0.8 V to 10 V.
- What types of output configurations are available for the NCP302LSN47T1G? The device is available with complementary or open drain output configurations.
- Can the NCP302LSN47T1G operate in extreme temperatures? Yes, it is specified to operate over the -40°C to +125°C temperature range.
- What is the maximum output current of the NCP302LSN47T1G? The maximum output current is 70 mA.
- What is the detector threshold hysteresis of the NCP302LSN47T1G? The detector threshold hysteresis is between 0.135 V and 0.315 V.
- What package types are available for the NCP302LSN47T1G? It is available in SOT-23-5 Thin, TSOT-23-5 Surface Mount packages.
- Is the NCP302LSN47T1G suitable for automotive applications? Yes, it is suitable for automotive and other applications requiring unique site and control change requirements.
- How does the programmable time delay generator work? The time delay is programmable using an external capacitor connected to the CD pin, allowing for customizable delay times.
