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INA231: Negative input voltage

Part Number: INA231
Other Parts Discussed in Thread: TIDA-00313, ISO1541

Dear Sir/Madam,

I would like to use the INA231 to measure current on a -5.8V rail.

I have read through TIDA-00313 and come up with the following circuit.

Could someone please take a look over to see if it looks fine.
Any comment are welcome.

IRz (current throyugh Rz) is approximately 11.3mA

INA231 0.6mA
ISO1541 4.7mA
SDA (10K) pullup 0.5mA
SCL (10K) Pullup 0.5mA
Zener 5mA

Rz = |-5.8-)-4.7)|/11.3mA = 97 (use 81)

Regards Joe