ISL6550B - SAM Supervisor And Monitor
NOTE: Pin numbers refer to the 20 lead SOIC package.
Please check PINOUT diagrams for QFN pin numbers.
VCC (Positive Supply Voltage) Pin 1 - This power pin supplies power to the IC; nominally 12V.
It should be bypassed directly to the GND pin with a 0.1µF low ESR/ESL capacitor.
GND (Signal Ground)
® ISL6550A, ISL6550B, ISL6550C Data Sheet July 2003 FN9036.2 SAM (Supervisor And Monitor) The ISL6550 is a precision, flexible, VID-code-controlled reference and voltage monitor for high-end microprocessor and memory power supplies.
It monitors various input signals, and supervises the system (typically a DC/DC converter) with its output signals.
See the Block Diagram for reference.
The ISL6550 includes a 5-bit DAC (Digital-to-Analog Converter), which is programmed by the five VID inputs.
The
ISL6550B Features
* 12V supply operation
* 5V reference output
* 5-bit digital-to-analog converter
* Programmable DAC Range, within 0.8
* 5.0V
* Programmable undervoltage and overvoltage thresholds, and latched fault detection
* Optional delayed undervoltage (prog
