DESCRIPTION
The LTC®2938/LTC2939 are configurable supply monitors for systems with up to four or six supply voltages that need watchdog supervision. One of sixteen preset or adjustable voltage monitor combinations can be selected using an external resistive divider connected to the program input. The preset voltage thresholds are accurate to ±1.5% over temperature. The LTC2938 and LTC2939 also feature adjustable inputs with a 0.5V nominal threshold.

FEATURES
■ Simultaneously Monitors Four (LTC2938) or Six Supplies (LTC2939)
■ Sixteen User-Selectable Combinations of 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V and/or ± Adjustable Voltage Thresholds
■ Guaranteed Threshold Accuracy: ±1.5%
■ Adjustable Reset and Watchdog Timeout
■ Low Supply Current: 80μA Typical
■ Power Supply Glitch Immunity
■ Guaranteed RST for VCC > 1V
■ High Temperature Operation to 125°C
■ 12-Pin 4mm × 3mm DFN or 12-Lead MSOP (LTC2938) and 16-Lead MSOP Package (LTC2939)

APPLICATIONS
■ Desktop and Notebook Computers
■ Multivoltage Systems
■ Telecom Equipment
■ Network Servers
■ Automotive Control Systems