TMP102: Can you provide the internal design and block diagram of the TMP102AIDRLR temperature sensor IIC bus

Dear Ian - 

the I2C engine for this device is pretty standard and this is certainly one of our longest running and best selling devices - perhaps it would be more productive if you could provide some information about your design and a description of your issue, so we can help you troubleshoot it. 

For example: 

your circuit diagram, including the pullup resistors for SDA, SCL and ALERT (with values) along with what VCC is, and what the I2C clock rate is. (If there are any other devices on the bus, please include those as well)

description of issue you are seeing and any logic or o'scope captures you can share which show the issue as you observe it.