The SP706PCN is a supervisor circuit manufactured by Sipex Corporation, now part of MaxLinear. It is a voltage monitoring and reset IC designed to improve system reliability by detecting voltage drops and providing a reset signal to the microcontroller or microprocessor.

Applications

• Microprocessor-based systems
• Embedded systems
• Industrial control systems
• Automotive electronics
• Power monitoring applications

Features

• Precision voltage monitoring: Accurately monitors the power supply voltage.
• Reset output: Provides a reliable reset signal during power-up, power-down, or voltage sags.
• Adjustable reset timeout: Allows customization of the reset pulse width.
• Low power consumption: Minimizes power drain in battery-powered applications.
• Small package: Available in compact packages for space-constrained designs.

Benefits

• Improved system reliability: Prevents erratic behavior caused by voltage fluctuations.
• Simplified reset circuitry: Reduces the need for external components.
• Customizable reset timing: Allows optimization for different microprocessor requirements.
• Extended battery life: Low power consumption is ideal for portable devices.
• Reduced board space: Compact package saves space in dense layouts.

Technical Specifications

The SP706PCN operates over a supply voltage range of typically 2.5V to 5.5V. It features a reset threshold voltage, which is the voltage level at which the reset signal is asserted, and this is commonly available in multiple options to match different system requirements. The reset timeout period can often be adjusted using an external capacitor or is internally fixed, depending on the specific version. Quiescent current consumption is typically very low, often in the microampere range. The operating temperature range is typically between -40°C and +85°C. Package options include PDIP and SOIC.

The device also provides a manual reset input, which allows an external signal to trigger a reset event. The reset output is typically an active-low signal, meaning it is asserted low to indicate a reset condition. The device incorporates internal glitch immunity to prevent false resets due to transient voltage spikes.