Overview
The NCV809SN293D2T1G is a part of the MAX809 series of system supervisor circuits produced by onsemi. These devices are designed to monitor the VCC voltage in digital systems and provide a reset signal to the host processor when necessary. They are cost-effective, require no external components, and are optimized for low supply current, making them suitable for battery-powered applications.
Key Specifications
| Characteristic | Value | Unit |
|---|---|---|
| Supply Voltage (VCC to GND) | -0.3 to 6.0 | V |
| RESET Output Voltage (CMOS) | -0.3 to (VCC + 0.3) | V |
| Input Current, VCC | 20 | mA |
| Output Current, RESET | 20 | mA |
| Detector Voltage Threshold | 2.93 | V |
| Reset Active TimeOut Period | 20-66 ms | ms |
| Supply Current (VCC = 3.3 V) | 0.5 | μA |
| Operating Temperature | -40°C to 105°C | °C |
| Package | SC-70 (SOT-323), Pb-Free | - |
Key Features
- Precision VCC monitoring 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 widths (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).
- Compatible with hot plug applications.
- VCC transient immunity.
- No external components required.
- 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 NCV809SN293D2T1G?
The primary function is to monitor the VCC voltage in digital systems and provide a reset signal to the host processor when necessary.
- What are the available reset timeout periods for this device?
The reset timeout periods available are 20-66 ms.
- What is the typical supply current of the NCV809SN293D2T1G at 3.3 V?
The typical supply current is 0.5 μA at VCC = 3.3 V.
- Is the NCV809SN293D2T1G compatible with hot plug applications?
Yes, it is compatible with hot plug applications.
- What is the operating temperature range of the NCV809SN293D2T1G?
The operating temperature range is -40°C to 105°C.
- Does the NCV809SN293D2T1G require any external components?
No, it does not require any external components.
- How does the device handle VCC transients?
The device has VCC transient immunity and can reject negative-going transients (glitches) on the power supply line.
- Is the NCV809SN293D2T1G Pb-free and RoHS compliant?
Yes, it is Pb-free and RoHS compliant.
- What package types are available for the NCV809SN293D2T1G?
The device is available in SC-70 (SOT-323) packages.
- How does the RESET output behave during power-down?
The RESET output is valid to VCC = 1.0 V. Below this voltage, the output becomes an open circuit and does not sink current.
