Maxim Integrated MAX6334UR23D3+T Voltage Supervisor IC

The Maxim Integrated MAX6334UR23D3+T is a precision, low-power microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with +3.3V-powered circuits.

This voltage supervisor IC ensures that the µP's power supply is stable before permitting it to operate. It delivers a reset signal to the µP during power-up, power-down, and brownout conditions. The reset signal remains asserted until the supply voltage reaches the reset threshold level and maintains for a specified period, providing a stable system reset. The reset threshold for the MAX6334UR23D3+T is precisely set at 2.3V, which is suitable for use with 3.3V power supplies.

The MAX6334UR23D3+T features a low supply current of 5µA (typical), making it ideal for power-conscious applications. It comes in a compact SOT-23 package, offering a space-saving solution for applications where board space is at a premium. Additionally, the device is specified over the extended industrial temperature range of -40°C to +85°C, ensuring reliable operation in harsh environments.

Key features of the MAX6334UR23D3+T include:

• Preset 2.3V reset threshold voltage suitable for 3.3V-powered systems
• Low 5µA supply current, which is beneficial for battery-operated devices
• 160ms (min) reset timeout delay, which provides ample time for system stabilization
• Guaranteed reset valid to VCC = 1V, ensuring reset functionality during low voltage conditions
• No external components required, simplifying design and reducing costs
• Compact SOT-23 packaging for space-constrained applications
• Wide operating temperature range for industrial applications

The MAX6334UR23D3+T is an excellent choice for portable equipment, computers, controllers, and intelligent instruments where power supply monitoring is critical. Its combination of features and compact form factor make it a versatile component for maintaining system integrity and preventing data corruption during power fluctuations.