Description

The MAX6705ATKA is a microprocessor (µP) supervisory circuit that simplifies power-supply monitoring in µP systems. This device combines multiple functions into a single IC, improving system reliability and accuracy. It provides a reset output during power-up, power-down, and brownout conditions, an independent watchdog output, a power-fail warning threshold detector, and an active-low manual reset input. The MAX6705ATKA is available in a small 8-pin SOT23 package.

Specifications and features

• Precision monitoring of +5.0V, +3.3V, +3.0V, +2.5V supply voltages
• 140ms reset timeout delay
• Power-fail input with independent output, monitoring inputs down to 0.62V
• Dual adjustable reset input for triple-voltage monitoring
• 1.6s watchdog timeout period
• Four reset output stage options: active low push-pull, active low open drain, active high push-pull, dual active low/high push-pull
• Guaranteed reset valid to VCC = 1V
• Immune to short falling VCC transients
• Low cost, few external components

Application Scenarios

The MAX6705ATKA is commonly used in the following applications:

• Computers
• Controllers
• Intelligent Instruments
• Automotive Systems
• Critical µP Power Monitoring
• White Goods
• Networking
• Telecommunications

Comparison

• Combines multiple functions into a single IC, reducing component count
• Improves system reliability and accuracy
• Small package size
• Can monitor multiple supply voltages
• Supports various reset output stage options

• None noted