Overview
The MAX809SN293D3T1G is a part of the MAX809 series of microprocessor reset supervisory circuits produced by onsemi. These devices are designed to monitor the power supply voltage (VCC) in digital systems and provide a reset signal to the host processor when necessary. The MAX809 series is known for its low supply current, precision voltage monitoring, and compatibility with various supply voltages.
The MAX809SN293D3T1G specifically has a reset voltage threshold of 2.93V and a reset timeout period that can range from 140 to 460 milliseconds. It is available in a SOT-23 package and is Pb-free and RoHS compliant.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reset Voltage Threshold (VTH) | 2.93 | V |
| Reset Timeout Period (tRP) | 140 - 460 | ms |
| Supply Voltage Range (VCC) | 1.0 to 5.5 | V |
| Supply Current (ICC) at VCC = 3.3V | 0.5 | μA |
| Operating Temperature Range | -40 to 105 | °C |
| Package Type | SOT-23 | |
| RESET Output Type | Active-Low | |
| VCC Transient Immunity | Rejects transients up to 100mV below VTH for 5μs or less |
Key Features
- Precision VCC monitoring for 1.5V, 2.5V, 3.0V, 3.3V, and 5.0V supplies
- Precision monitoring voltages from 1.2V to 4.9V available in 100mV steps
- Four guaranteed minimum power-on reset pulse widths (1ms, 20ms, 100ms, and 140ms)
- Low supply current of 0.5μA at VCC = 3.2V
- No external components required
- Compatible with hot plug applications
- VCC transient immunity to reject fast transient glitches
- 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 MAX809SN293D3T1G?
The primary function is to monitor the power supply voltage (VCC) and provide a reset signal to the host processor when VCC falls below the reset voltage threshold.
- What is the reset voltage threshold for the MAX809SN293D3T1G?
The reset voltage threshold is 2.93V.
- What are the possible reset timeout periods for the MAX809SN293D3T1G?
The reset timeout period can range from 140 to 460 milliseconds.
- What is the typical supply current of the MAX809SN293D3T1G at VCC = 3.3V?
The typical supply current is 0.5μA.
- What is the operating temperature range of the MAX809SN293D3T1G?
The operating temperature range is -40°C to 105°C.
- Is the MAX809SN293D3T1G Pb-free and RoHS compliant?
- What types of applications is the MAX809SN293D3T1G suitable for?
- Does the MAX809SN293D3T1G require any external components?
No, it does not require any external components.
- How does the MAX809SN293D3T1G handle VCC transients?
- What package type is the MAX809SN293D3T1G available in?
