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ISL6550A - SAM Supervisor And Monitor

Download the ISL6550A datasheet PDF. This datasheet also covers the ISL variant, as both devices belong to the same sam supervisor and monitor family and are provided as variant models within a single manufacturer datasheet.

General Description

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.

Key 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 (programmable with external capacitor).
  • Undervoltage lockout (power-on-reset).
  • Status Indicators (START, PGOOD).
  • Uncommitted operational amplifier.
  • Compatible with ISL65.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (ISL-6550.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Intersil (Renesas)

Part Number Description
ISL6550B SAM Supervisor And Monitor
ISL6550C SAM Supervisor And Monitor
ISL6523A VRM8.5 Dual PWM and Dual Linear Power System Controller
ISL6536A Four Channel Supervisory IC
ISL6540 Single-Phase Buck PWM Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
® 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 voltage range of the BDAC (Buffered DAC output) is determined by the DACHI and DACLO voltage levels, which are externally adjustable through the R1, R2, R3 resistor divider network. VREF5 is a precision-trimmed 5V reference, and is used to set the voltage at the top of the resistor divider.