Overview
The NCP305LSQ45T1G is a second-generation ultra-low current voltage detector produced by onsemi. This device is specifically designed for use as a reset controller in portable microprocessor-based systems where extended battery life is crucial. It features a highly accurate undervoltage detector with hysteresis to prevent erratic system reset operations.
Key Specifications
| Characteristic | Unit | Min | Max | |
|---|---|---|---|---|
| Detector Threshold (Vin Decreasing) | V | 4.410 | 4.500 | 4.590 |
| Detector Threshold Hysteresis (Vin Increasing) | V | 0.135 | 0.225 | 0.315 |
| Supply Current (Vin = 4.34 V) | �A | 0.9 | 1.1 | 3.0 |
| Maximum Operating Voltage | V | - | - | 10 |
| Minimum Operating Voltage (TA = -40°C to 85°C) | V | 0.55 | 0.65 | 0.80 |
| Reset Output Current (Active Low, VOUT = 0.05 V, Vin = 0.70 V) | mA | 0.01 | 0.05 | 2.0 |
| Thermal Resistance, Junction-to-Air | °C/W | - | - | 285 |
| Maximum Junction Temperature | °C | - | - | 125 |
| Storage Temperature Range | °C | -55 | - | 150 |
Key Features
- Ultra-low quiescent current of 1.0 �A typical
- High accuracy undervoltage threshold with 2.0% tolerance
- Wide operating voltage range from 0.8 V to 10 V
- Complementary or open drain reset output configurations
- Active low or active high reset output options
- AEC-Q100 qualified and PPAP capable for automotive and other critical applications
- Pb-free and RoHS compliant
Applications
- Microprocessor reset controller
- Low battery detection
- Power fail indicator
- Battery backup detection
Q & A
- What is the primary function of the NCP305LSQ45T1G?
The primary function of the NCP305LSQ45T1G is to act as a reset controller in microprocessor-based systems, ensuring accurate undervoltage detection and preventing erratic system resets.
- What is the typical quiescent current of the NCP305LSQ45T1G?
The typical quiescent current is 1.0 �A.
- What are the available reset output configurations for the NCP305 series?
The NCP305 series offers open drain N-Channel output with an active low reset output.
- What is the operating voltage range of the NCP305LSQ45T1G?
The operating voltage range is from 0.8 V to 10 V.
- Is the NCP305LSQ45T1G suitable for automotive applications?
- What is the detector threshold for the NCP305LSQ45T1G?
The detector threshold is 4.5 V with a hysteresis of 0.135 V to 0.315 V.
- What is the maximum junction temperature for the NCP305LSQ45T1G?
The maximum junction temperature is 125°C.
- Is the NCP305LSQ45T1G Pb-free and RoHS compliant?
- What are some typical applications of the NCP305LSQ45T1G?
- What is the thermal resistance, junction-to-air, for the NCP305LSQ45T1G?
