High Voltage Mode supplying External Circuitry

[sanderson]

When running in High Voltage mode, it specifies a maximum of 7mA of external power draw on the Vdd output.  It also specifies the voltage accuracy of -10%/+5%.  This is a very wide range.  That is, if I set it to 1.8v, it could be as low as 1.62v, which would be too low for a lot of 1.8v logic chips (usually 1.7v min).  Is this voltage range conservative, or could we expect this much variation part to part?

Thank you.

[Priyanka]

Hi,

The wide range for voltage accuracy is quite conservative as you had presumed. It covers a worst case scenario considering various parameters like temperature, device to device variation, aging, output programming, input voltage and load range. This variation also differs from part to part depending on these parameters.

Best Regards,

Priyanka