The MAX809JW is a precision microprocessor (μP) reset circuit developed by NXP Semiconductors, designed to monitor power supplies in μP and digital systems. It provides a significant level of system reliability and accuracy required for managing the power-on reset function of a μP when power is initially applied to a system.
Key Features
- Reset Threshold Voltage: The device has a preset threshold voltage that ensures a proper reset signal is provided to the μP during power-up, power-down, or brown-out conditions.
- Reset Timeout: It offers a 140 ms minimum power-on reset timeout which gives the system adequate time to stabilize before the processor starts operating.
- Low Power Consumption: Designed for low power consumption, the MAX809JW is ideal for use in portable and battery-operated equipment.
- Wide Operating Temperature Range: The device is functional over a broad temperature range, making it suitable for various industrial applications.
Applications
The MAX809JW is versatile and can be used in a variety of applications, including:
- Computers and Controllers
- Intelligent Instruments
- Portable/Battery-Powered Equipment
- Embedded Systems
Package and Quality
This reset circuit comes in a compact SOT-23 package, which is beneficial for space-constrained applications. It is also RoHS compliant, ensuring adherence to environmental standards and regulations.
Technical Specifications
Parameter
Value
Threshold Voltage
Typically 4.63V
Operating Temperature
-40°C to +85°C
Package Type
SOT-23
Reset Timeout
140 ms min.
With its robust design and reliable performance, the MAX809JW from NXP is a dependable choice for system designers looking to ensure the integrity of their μP systems during power variations.
