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BQ2060A: bq2060A Not Recommended for New Design

Adam Elias5
Prodigy 45 points
Part Number: BQ2060A
Other Parts Discussed in Thread: BQ24725A, , BQ34110, BQ34Z100-G1, BQ2060, EV2400, BQ34Z100

Hello,

We have a product using a bq2060A along with a bq24725A.

I see that the bq2060A is marked as Not Recommended for New Design, NRND. 

  1. Can you help me understand the meaning of this?
  2. Can we still purchase the bq2060A to support our product for the long term (5+ years)?
  3. I know that the EV2200 which has been the standard programmer for the bq2060A, is no longer manufactured.  Are the design files and software within the IC on the EV2200 available for download?

I've read a few other posts where either the BQ34110 or BQ34Z100-G1 should be evaluated for replacements.

Adam

  • 0
    TI__Mastermind 25955 points
    Hi Adam,

    The bq2060A is NRND and other functionally equivalent devices exist. This means there are newer devices that are functionally equivalent to the bq2060A. The initial version of the datasheet for the bq2060A is dated October of 2001 - this device has been in production for over 16 years. The bq2060a can still be purchased (and is still purchased). For volume pricing over the long term, please contact your technical sales representative.

    Since the bq2060A was created, our gauging portfolio has expanded - several other CEDV gauges and IT gauges have been developed with improved algorithms and features, and are also available.

    The EV2200 is no longer manufactured. If you need the EV2200 design files for ongoing production with the bq2060, they can be provided. We currently support the EV2300 and EV2400 to facilitate HDQ, I2C and/or SMBus communications between a host PC and devices. A toolkit for the EV2300/2400 is offered to allow customers to design their own production flow, if that is of interest.

    The bq34z100-G1 is an older device, but is not currently NRND. There are certain applications where it is best suited, and other applications where other devices are better suited. Many of these posts speak to the particular situation presented by the customer for their particular design and use case.

    In that vein, could you share more about your application, use case, requirements and goals so that we may discuss which parts would be suitable for your application?

    Sincerely,
    Bryan Kahler
  • 0 in reply to Bryan Kahler
    Prodigy 45 points
    Thank you for the details regarding the bq2060.

    The current design uses 8S1P pack with 800mA AAA NiMH cells. Currently terminate charge at 1.6°/120seconds using the bq2060A fuel gauge. The bq2060A broadcasts to a bq24725A. Charging is at 384mA for fast charging, and then 128mA for maintenance charging.

    Typically the pack can be charged in 2.5 hours from being completely depleted. The NiMH cells are low self discharge type and there is a 103AT thermistor within the pack.

    Input voltage is 14Vdc.

    Please share the design files for the EV2200, so I can evaluate level of effort to recreating it to support manufacturing.

    Thanks,

    ADam
  • 0 in reply to Adam Elias5
    Prodigy 45 points
    Hello,

    I noticed that there is really no option which is similar to the bq2060 with respected to being a stand along smart battery in conjunction with a SMBus smart charger. The bq2060 is unique in that it broadcasts charging voltage and current to a slave a SMBus charger. This is currently how our design is configured to reduce software overhead and risk in our medical device.

    The bq34110 and bq34z100 both do not broadcast like the bq2060 does, and they require a host to pull the data and then push it to the SMBus charger on whether to charge or not. Is this statement correct?

    Thanks,

    Adam
  • 0 in reply to Adam Elias5
    TI__Mastermind 25955 points

    Hi Adam,

    You're absolutely correct.  The bq34z100-G1 and bq34110 do not broadcast (they don't have a SMBUS interface), but require a host MCU or charger to poll them for data.


    Sincerely,
    Bryan Kahler