Why is PAC1921 not responding to gain settings changes?

In the GUI "PAC1921 High Side Current Sense and Power Monitor (ADM00592) GUI Software", having 'Enable Auto INT_EN' inactive keeps the PAC1921 device in the READ state (low power mode). Activating this push button solves the issue. As stated in section "4.2.2.1 ENABLE AUTO INT_EN" of the "PAC1921 High-Side Current/Power Sensor Evaluation Board User’s Guide":

"It is recommended that the “Enable Auto INT_EN” control be activated when using the GUI."

Read the entire section for more information. Also, see section "4.4 Power States" of the user's guide, which is available on the PAC1921 product page.

© 2018 Microchip Technology, Inc.
Notice: ARM and Cortex are the registered trademarks of ARM Limited in the EU and other countries.
Information contained on this site regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.