Overview
The ADM809ART+REE is a microprocessor supervisory circuit designed to monitor power supply voltages in electronic systems. It provides reliable reset signals to ensure proper system initialization and operation. As an industrial-grade component, it finds widespread use in embedded systems, IoT devices, and industrial control equipment where stable voltage monitoring is critical.
Structure and Working Principle
The IC consists of a precision voltage reference, comparator, timing circuitry, and output driver. When the monitored voltage drops below the preset threshold (typically 3.3V or 5V variants available), it asserts a reset signal. The 'ART' suffix indicates its SOT-23 package, while 'REE' designates specific tape and reel packaging for automated assembly. The device maintains the reset signal for a fixed period after the voltage returns to normal, ensuring proper system restart.
Key Features
The ADM809ART+REE offers several advantages including ultra-low supply current (typically 5μA), making it suitable for battery-powered applications. Its precision voltage monitoring (±1.5% threshold accuracy) ensures reliable system operation. The device is available with either active-low or active-high reset outputs, providing design flexibility. Its wide operating voltage range (1.2V to 5.5V) and industrial temperature range (-40°C to +85°C) make it versatile for various applications.
Application Areas
Primary applications include embedded systems, industrial controllers, automotive electronics, and medical devices where power stability monitoring is crucial. In consumer electronics, it's commonly used in smart home devices, wearables, and portable electronics. The component's reliability makes it particularly valuable in systems where unexpected power fluctuations could cause data corruption or operational failures.
Maintenance and Precautions
While the ADM809ART+REE is generally maintenance-free, proper PCB layout is essential. Place decoupling capacitors close to the VCC pin and minimize trace lengths to the reset output. Avoid exposing the device to voltages beyond its absolute maximum ratings. For systems with particularly noisy power supplies, additional filtering may be necessary to prevent false reset triggering.
B2B Procurement Guide
When sourcing ADM809ART+REE, verify the manufacturer's authenticity as counterfeit components are a concern in the semiconductor market. Consider ordering from authorized distributors for guaranteed quality. Lead times can vary from stock availability to 8-12 weeks for large orders. For prototyping needs, sample quantities are often available through distributor sample programs. Volume pricing typically becomes competitive at quantities above 1,000 units.
Related Manufacturers
- 主营：TDK、三星、美国微芯、MAXIM、SUCCEED、VISHAY、CATAYST、ON、P-DUKE、SAMSUNG、POWERGOOD、FAIRCHID