RF430FRL154H: Limited Operating Temperature Range?

Thanks for the response; any suggestions on another solution that works over a wider temperature range?

Hell SteeVeeDee,

What features do you require that are offered by the RF430FRL15xH?

I have an array of about 15 DRV5032 digital hall effect sensors to scan. The NFC tag will be powered up, the sensors scanned, and the state of the sensors reported back. So, something programmable with some GPIO is necessary. Thanks!

Thanks; this sensor needs to be powered from the NFC field- I don't have a battery available. The 'CL330 data sheet doesn't really show any self-powered tags. I can put some schottky diodes and a capacitor on the board.

Any thoughts on this?

Hello SteeVeeDee,

It is possible to field power the system from the RF field as long as the current consumption from for the system at 3.3V is kept below approx. 1mA (exact number is dependent on output power of NFC reader but in general most devices offer at least 1mA of current). Note that I2C comms with the RF430CL330H is about 200uA while just loading it with data over I2C while leaving the chip open to RF communication (which usually must be done to ensure the reader will constantly supply the RF field) is just 35uA.

This TI Design shows hardware setup for a field powered RF430CL330H + MSP430FR5969 system: www.ti.com/.../TIDA-00217 including the diodes and capacitor.