Overview
The NCP304LSQ29T1G 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. The NCP304 series features highly accurate undervoltage detection with hysteresis, preventing erratic system reset operations as the comparator threshold is crossed.
Key Specifications
| Characteristic | Symbol | Unit | Min | Max | |
|---|---|---|---|---|---|
| Input Power Supply Voltage (Pin 2) | Vin | V | - | - | 12 |
| Output Voltage (Pin 1) | VOUT | V | -0.3 | - | Vin+0.3 |
| Output Current (Pin 1) | IOUT | mA | - | - | 70 |
| Thermal Resistance, Junction-to-Air | RJA | °C/W | - | - | 285 |
| Maximum Junction Temperature | TJ | °C | - | - | 125 |
| Storage Temperature Range | Tstg | °C | -55 | - | 150 |
| Detector Threshold (Pin 2, Vin Decreasing) | VDET- | V | 2.842 | 2.9 | 2.958 |
| Detector Threshold Hysteresis (Pin 2, Vin Increasing) | VHYS | V | 0.087 | 0.145 | 0.203 |
| Supply Current (Pin 2) | Iin | µA | 0.9 | 1.1 | 2.9 |
| Minimum Operating Voltage (Pin 2) | Vin(min) | V | 0.55 | - | 0.80 |
Key Features
- Quiescent Current of 1.0 µA Typical
- High Accuracy Undervoltage Threshold of 2.0%
- Wide Operating Voltage Range of 0.8 V to 10 V
- Complementary or Open Drain Reset Output
- Active Low or Active High Reset Output
- AEC-Q100 Qualified and PPAP Capable for automotive and other applications requiring unique site and control change requirements
- 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 NCP304LSQ29T1G? The primary function is to act as a reset controller in microprocessor-based systems, ensuring accurate undervoltage detection.
- What is the typical quiescent current of the NCP304LSQ29T1G? The typical quiescent current is 1.0 µA.
- What is the operating voltage range of the NCP304LSQ29T1G? The operating voltage range is from 0.8 V to 10 V.
- Does the NCP304LSQ29T1G have ESD protection? Yes, it exceeds the Human Body Model 2000 V per MIL-STD-883, Method 3015.
- What are the typical applications of the NCP304LSQ29T1G? Typical applications include microprocessor reset controllers, low battery detection, power fail indicators, and battery backup detection.
- Is the NCP304LSQ29T1G Pb-Free and RoHS Compliant? Yes, it is Pb-Free and RoHS Compliant.
- What is the maximum junction temperature for the NCP304LSQ29T1G? The maximum junction temperature is 125°C.
- What is the detector threshold hysteresis for the NCP304LSQ29T1G? The detector threshold hysteresis is between 0.087 V and 0.203 V.
- What is the storage temperature range for the NCP304LSQ29T1G? The storage temperature range is from -55°C to 150°C.
- Does the NCP304LSQ29T1G support both active high and active low reset outputs? Yes, it supports both active high and active low reset outputs.
