ISL68227IRAZ datasheet(29/100 Pages) RENESAS

Part #	ISL68227IRAZ

Description	Digital Single Output,12-Phase PWM Controller

PDF	100 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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29 / 100 page

ISL68227

6. Fault Monitoring and Protection

FN9333 Rev.1.00

Page 29 of 99

Oct.1.20

6.7

Black Box Recorder

Black Box is a powerful diagnostic tool that captures all telemetry and status information when any fault occurs.

The ISL68227 continuously monitors all rail and phase information along with the time duration that the rail has

been regulating, and the tool captures that data when a fault is registered. Next, the tool reports the first fault bit

that occurred to cause the shutdown. This diagnostic data is stored in RAM, and Black Box can be configured to

additionally write to NVM for retrieval when the system loses input power as a fault occurs. The RAM record is

updated every time a fault occurs. Black Box can write to NVM up to 10 times and provides an option to limit NVM

writing to once per power cycle to avoid filling up the available NVM space inadvertently.

ISL68227IRAZ Datasheet(PDF) 29 Page - Renesas Technology Corp