Overview
The NCP302LSN38T1G is a second-generation ultra-low current voltage detector produced by onsemi. This device is part of the NCP302 and NCP303 series, which are designed to provide reliable voltage monitoring with programmable time delay capabilities. The NCP302LSN38T1G is particularly suited for applications requiring precise voltage detection and reset functions, making it an essential component in various electronic systems.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Input Power Supply Voltage (Pin 2) | Vin | 12 | V |
| Minimum Operating Voltage (Pin 2) at TA = 25°C | Vin(min) | 0.70 | V |
| Output Voltage (Pin 1) | VOUT | -0.3 to Vin + 0.3 | V |
| Output Current (Pin 1) | IOUT | 70 | mA |
| Operating Ambient Temperature Range | TA | -40 to +125 | °C |
| Storage Temperature Range | Tstg | -55 to +150 | °C |
| Thermal Resistance Junction-to-Air | RJA | 250 | °C/W |
| Maximum Junction Temperature | TJ | +150 | °C |
| Detector Threshold Voltage (VDET+) | VDET+ | 3.724 to 3.876 | V |
| Delay Capacitor Pin Threshold Voltage (Pin 5) | VTCD | 2.59 to 4.40 | V |
| Delay Capacitor Pin Sink Current (Pin 5) | ICD | 2.0 to 200 | μA |
| Delay Pullup Resistance (Pin 5) | RD | 0.5 to 2.0 | MΩ |
Key Features
- Ultra-Low Current Consumption: Designed to operate with very low current, making it suitable for battery-powered devices and power-sensitive applications.
- Programmable Time Delay: The device includes a programmable time delay generator, allowing for customizable reset timing based on the application requirements.
- Open Drain and Complementary Output Configurations: Available in both open drain (NCP303) and complementary output (NCP302) configurations to accommodate different system needs.
- Pb-Free and RoHS Compliant: Ensures environmental compliance and reduces the risk of lead contamination.
- AEC-Q100 Qualified for Automotive Applications: Devices with the NCV prefix are qualified for automotive and other applications requiring unique site and control change requirements.
Applications
- Microprocessor Reset Controller: Ensures the microprocessor is reset correctly under various voltage conditions.
- Low Battery Detection: Monitors battery voltage levels to prevent operation below safe thresholds.
- Power Fail Indicator: Provides a signal when the power supply voltage drops below a specified level.
- Battery Backup Detection: Detects when the main power source fails and switches to a backup power source.
Q & A
- What is the primary function of the NCP302LSN38T1G?
The primary function of the NCP302LSN38T1G is to detect voltage levels and provide a reset signal when the voltage drops below a specified threshold.
- What are the key features of the NCP302LSN38T1G?
The key features include ultra-low current consumption, programmable time delay, open drain and complementary output configurations, and Pb-free/RoHS compliance.
- What is the operating temperature range of the NCP302LSN38T1G?
The operating ambient temperature range is -40°C to +125°C.
- What is the maximum junction temperature for the NCP302LSN38T1G?
The maximum junction temperature is +150°C.
- What types of output configurations are available for the NCP302 series?
The NCP302 series is available in both open drain and complementary output configurations.
- Is the NCP302LSN38T1G suitable for automotive applications?
Yes, devices with the NCV prefix are AEC-Q100 qualified and suitable for automotive applications.
- What is the typical application for the NCP302LSN38T1G in microprocessor systems?
The typical application is as a microprocessor reset controller to ensure the microprocessor is reset correctly under various voltage conditions.
- How is the time delay programmed in the NCP302LSN38T1G?
The time delay is programmed using an external capacitor connected to the delay capacitor pin (Pin 5).
- What is the minimum operating voltage for the NCP302LSN38T1G at 25°C?
The minimum operating voltage is 0.70 V.
- Is the NCP302LSN38T1G Pb-free and RoHS compliant?
Yes, the device is Pb-free and RoHS compliant.
