µP Supervisor with Watchdog Timer, Power-Fail Comparator, Manual Reset and Adjustable Power-On Reset

Designed with high reset threshold accuracy and low power consumption, the ISL88705, ISL88706, ISL88707, ISL88708, ISL88716 and ISL88813 devices are microprocessor supervisors that are designed to monitor power-supply and battery functions in microprocessor systems. They can help to lower system cost, reduce board space requirements and increase the reliability of systems.

Features

• Fixed-Voltage Options Allow Precise Monitoring of +3.0V, +3.3V, and +5.0V Power Supplies

• Additional Voltage Monitor for Power-Fail Detection or Low-Battery Warning

- Monitors Voltages Down to 1.25V

- Adjustable Power-Fail Input Threshold

• Watchdog Timer Capability With 1.6s Time-out

• Both RST and RST Outputs Available

• 140ms Minimum Reset Pulse Width with Option to Customize Using an External Capacitor

• Manual Reset Input on all Devices

• Reset Signal Valid Down to VDD = 1V

• Accurate ±1.8 Voltage Threshold

• Immune to Power-Supply Transients

• Ultra Low 10µA Maximum Supply Current at 3V

• Pb-Free (RoHS Compliant)

Applications

• Portable/Battery Powered Equipment

• Notebook/Desktop Computer Systems

• Designs Using DSPs, Microcontrollers or Microprocessors

• Controllers

• Intelligent Instruments

• Communications Systems

• Industrial Equipment