Maxim Power-Supply Tracker/Sequencer MAX6877 Manuel D’Utilisation

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Keywords: 

sequencing, sequencer, monitor, reset, voltage tracking, voltage tracker

 

Sep 20, 2006 

 

 

 

Figure 1. The basic circuit for the MAX6877. 

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Tracks or sequences up to three voltages 

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Closed-loop tracking control with programmable slew rate 

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Program thresholds with resistors 

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Program slew rate and timing delays with capacitors 

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Fault output and power-good output 

The MAX6877 voltage tracker/sequencer can track or sequence up to three voltages. Use the TRACK/SEQ pin to select 

tracking or sequencing. The device will either track or sequence the three voltages, but it cannot track and sequence 

simultaneously. Power-up begins when EN/active-low UV is asserted and all three input voltages are above their 

thresholds. In the example circuit in Figure 1, EN/active-low UV is connected to the 12V bus, so the circuit will turn 

on when the bus exceeds its threshold and turn off when it falls under its threshold.