BQ40Z60: NRND

Part Number: BQ40Z60

Hi,

I recently noticed the bq40z60 became NRND (Not Recommended for New Design: http://www.ti.com/product/BQ40Z60

I already have designed a standard battery management block for several products using this IC in our company. I worry that I should change the strategy of battery management hardware.

Question:

1) Could you claim the reason why this decent IC became NRND? Difficulty to use, covert flaw, or low yield, etc.

2) Would you introduce an alternative or eligibles for a new design?

Thanks again,

Joshua Kim