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LTC2938 - (LTC2938 / LTC2939) Configurable 4- and 6-Supply Monitors

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.

Features

  • n n.

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Full PDF Text Transcription

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LTC2938/LTC2939 Configurable 4- and 6-Supply Monitors with Watchdog Timer FEATURES n n 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. The reset and watchdog timeout periods are adjustable using external capacitors. Tight voltage threshold accuracy and glitch immunity ensure reliable reset operation without false triggering.
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