LTC2931IF Datasheet PDF - Linear Technology

DESCRIPTION
The LTC®2931 is a confi gurable supply monitor for systems with up to six supply voltages. One of 16 preset or adjustable voltage monitor combinations can be selected using an external resistive divider connected to the mode select pin. The preset voltage thresholds are accurate to ±1.5% over temperature. The LTC2931 also features adjustable inputs with a 0.5V nominal threshold. All six open-drain voltage comparator outputs are connected to separate pins for individual supply monitoring.

FEATURES
■ Simultaneously Monitors Six Supplies
■ 16 User Selectable Combinations of
   5V, 3.3V, 3V, 2.5V, 1.8V, 1.5V and ± Adjustable
   Voltage Thresholds
■ Guaranteed Threshold Accuracy: ±1.5%
■ Adjustable Reset and Watchdog Timeout
■ Low Supply Current: 52μA
■ Comparator/Monitor Output for Each Supply
■ Power Supply Glitch Immunity
■ Guaranteed RST for VCC ≥ 1V
■ High Temperature Operation to 125°C
■ 20-Lead TSSOP Package

APPLICATIONS
■ Desktop and Notebook Computers
■ Multivoltage Systems
■ Telecom Equipment
■ Portable Battery-Powered Equipment
■ Network Servers
■ Automotive