Overview
The NCP803SN293D2T1G is a microprocessor reset monitor manufactured by onsemi. This device is part of the NCP803 series, designed to monitor the VCC voltage in digital systems and provide a reset signal to the host processor when necessary. It is a cost-effective, 3-pin system supervisor circuit that requires no external components. The NCP803SN293D2T1G is optimized for low supply current, making it suitable for battery-powered applications, and it offers robust transient immunity to reject fast transient glitches on the VCC line.
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) | - | 2.93 | - | V |
| Reset Active TimeOut Period | 20 | - | 66 | 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 monitoring for supplies from 1.5 V to 5.0 V, with options available in 100 mV steps from 1.2 V to 4.9 V.
- Low supply current of 0.5 μA (VCC = 3.2 V), making it suitable for battery-powered applications.
- No external components required.
- Open-drain active-low RESET output.
- Four guaranteed minimum power-on reset pulse widths available (1 ms, 20 ms, 100 ms, and 140 ms).
- RESET output guaranteed to VCC = 1.0 V.
- VCC transient immunity to reject negative-going transients (glitches) on the power supply line.
- Wide operating temperature range: -40°C to 105°C.
- Pb-free and RoHS compliant.
Applications
- Computers
- Embedded systems
- Battery-powered equipment
- Critical microprocessor power supply monitoring
Q & A
- What is the primary function of the NCP803SN293D2T1G?
The primary function is to monitor the VCC voltage in digital systems and provide a reset signal to the host processor when necessary.
- What is the typical supply current of the NCP803SN293D2T1G?
The typical supply current is 0.5 μA at VCC = 3.2 V.
- What are the available reset pulse widths for the NCP803SN293D2T1G?
The available reset pulse widths are 1 ms, 20 ms, 100 ms, and 140 ms.
- What is the operating temperature range of the NCP803SN293D2T1G?
The operating temperature range is -40°C to 105°C.
- Is the NCP803SN293D2T1G Pb-free and RoHS compliant?
- What type of output does the NCP803SN293D2T1G have?
The device has an open-drain active-low RESET output.
- How does the NCP803SN293D2T1G handle VCC transients?
The device provides VCC transient immunity to reject negative-going transients (glitches) on the power supply line.
- What are the typical applications for the NCP803SN293D2T1G?
Typical applications include computers, embedded systems, battery-powered equipment, and critical microprocessor power supply monitoring.
- What is the storage temperature range for the NCP803SN293D2T1G?
The storage temperature range is -65°C to 150°C.
- What is the lead temperature for soldering the NCP803SN293D2T1G?
The lead temperature for soldering is up to 260°C for 10 seconds.
