Description

The MAX807NCUE is a microprocessor supervisory circuit designed to simplify power-supply and battery-control functions in microprocessor systems. It has a low supply current of 70µA, making it suitable for use in portable equipment. It also has a quick chip-enable propagation delay of 2ns and a high output current capability of 250mA (20mA in battery-backup mode), making it ideal for larger, higher-performance equipment.

Specifications and features

• Precision voltage monitoring: 4.675V (MAX807L), 4.425V (MAX807M), or 4.575V (MAX807N)
• 200ms power-OK/reset time delay
• RESET and RESET outputs
• Independent watchdog timer
• 1µA standby current
• Power switching: 250mA in VCC mode, 20mA in battery-backup mode
• 2ns CE gate propagation delay for on-board gating of chip-enable signals
• MaxCap® and SuperCap® compatible
• Voltage monitor for power fail
• Backup-battery monitor
• Guaranteed RESET valid to VCC = 1V
• ±1.5% low-line threshold accuracy 52mV above reset threshold

Application Scenarios

The MAX807NCUE can be used in various applications, including computers, controllers, intelligent instruments, critical microprocessor power monitoring, and portable/battery-powered equipment.

Comparison

• Low supply current makes it ideal for use in portable equipment
• Quick chip-enable propagation delay and high output current capability make it suitable for larger, higher-performance equipment
• Precision voltage monitoring for accurate power supply control
• Independent watchdog timer for enhanced system reliability
• Compatible with MaxCap® and SuperCap® for flexible power management options

No apparent disadvantages were found in the specified model.