Overview
The NCP803SN263T1G is a cost-effective system supervisor circuit designed by onsemi, optimized for monitoring the power supply voltage (VCC) in digital systems. This device is part of the NCP803 series and is specifically tailored for applications requiring precise VCC monitoring and reset functionality. The NCP803SN263T1G is particularly suitable for battery-powered equipment and other systems where low supply current is crucial.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Range | 1.0 | - | 5.5 | V |
| Supply Current (VCC = 3.3 V) | - | 0.5 | 1.2 | μA |
| Reset Voltage Threshold (VTH) | 2.59 | 2.63 | 2.66 | V |
| Reset Active TimeOut Period | 140 | - | 460 | ms |
| Operating Junction Temperature Range | -40 | - | 105 | °C |
| Storage Temperature Range | -65 | - | 150 | °C |
| Lead Temperature (Soldering, 10 Seconds) | - | - | 260 | °C |
| ESD Protection (Human Body Model) | - | - | 2000 | V |
Key Features
- Precision VCC Monitor for 1.5 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V Supplies
- Precision Monitoring Voltages from 1.2 V to 4.9 V Available in 100 mV Steps
- Four Guaranteed Minimum Power-On Reset Pulse Width Available (1 ms, 20 ms, 100 ms, and 140 ms)
- RESET Output Guaranteed to VCC = 1.0 V
- Low Supply Current of 0.5 μA (VCC = 3.2 V)
- VCC Transient Immunity
- No External Components Required
- Wide Operating Temperature: -40°C to 105°C
- Pb-Free and RoHS Compliant
Applications
- Computers
- Embedded Systems
- Battery Powered Equipment
- Critical Microprocessor Power Supply Monitoring
The NCP803SN263T1G is particularly useful in systems that require reliable power supply monitoring and reset functionality, especially in battery-powered devices where low power consumption is essential.
Q & A
- What is the primary function of the NCP803SN263T1G?
The primary function of the NCP803SN263T1G is to monitor the power supply voltage (VCC) in digital systems and provide a reset signal to the host processor when necessary.
- What are the available reset voltage thresholds for the NCP803 series?
The NCP803 series offers precision monitoring voltages from 1.2 V to 4.9 V in 100 mV steps.
- What is the typical supply current of the NCP803SN263T1G at VCC = 3.3 V?
The typical supply current is 0.5 μA at VCC = 3.3 V.
- What is the reset active timeout period for the NCP803SN263T1G?
The reset active timeout period ranges from 140 ms to 460 ms.
- Is the NCP803SN263T1G Pb-Free and RoHS compliant?
- What is the operating temperature range of the NCP803SN263T1G?
The operating temperature range is -40°C to 105°C.
- Does the NCP803SN263T1G require external components?
No, the NCP803SN263T1G does not require external components.
- How does the NCP803SN263T1G handle VCC transients?
The device has built-in VCC transient immunity and can reject negative-going transients (glitches) on the power supply line.
- What are the typical applications of the NCP803SN263T1G?
Typical applications include computers, embedded systems, battery-powered equipment, and critical microprocessor power supply monitoring.
- What is the ESD protection rating of the NCP803SN263T1G?
The device has an ESD protection rating of 2000 V according to the Human Body Model.
