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ISL6536A
Data Sheet January 2004 FN9136
Four Channel Supervisory IC
The ISL6536A is a four channel supervisory IC designed to monitor
voltages , = 0.
7V.
This IC bias range is from 2.
7V to 5V but can supervise any positive
voltage using an external resistor divider to translate to a lower
voltage for comparison to the internal 0.
63V reference.
Once properly biased and enabled when all four
voltage monitor (VMON) inputs are satisfied the PGOOD output will be immediately released to go high to signal that
voltage is valid on all four rails.
Subsequently when the monitored
voltage on any rail drops below its user defined threshold point, the PGOOD output is pulled low.
Each rail’s VMON poin...