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DM8147 powering requirements

Mohammad Kiaei
Intellectual 675 points

Other Parts Discussed in Thread: TPS51200

Hi,

I'm looking for the required items for powering DM8147. I checked Digital Spectrum webpage which provides information for the EVM of DM816x. In the following table, I list the major items which I found for powering the EVM of DM816x:

 

Mfr

P/N

Description

T.I.

INA220AIDGS

IC,TSOP10,BI-DIRECTIONAL CURRENT/POWER

T.I.

MSP430F2132IPWR

IC,TSSOP28,MIXED SIGNAL

T.I.

MAX3221CPWR

IC,TSSOP16,RS-232 DRIVER/RECEIVER

Seiko Inst.

SSPT7F-12.5PF20PPM

CRYSTAL, SMT, 32.768kHz

T.I.

TPS65232A2DCAR

IC,TSSOP48,TRIPLE BUCK PMIC

T.I.

TPS54620RGY

IC, QFN14, Synchronous Step Down

T.I.

TPS51200DRCT

IC, QFN10, Sink/Source DDR Termination

T.I.

TPS40041DRBT

IC, SON8, Synchronous Buck DC-to-DC

T.I.

TPS65001RUK

IC, QFN20, Step Down Converter with Dual

T.I.

TPS3808G09DBVR

IC, DBV6, Supervisory Circuit, .9V

I wonder which of these items and/or any other parts are required for powering DM8147. Thanks a lot for your earliest response.

 

Best Regards,

Mohammad

  • 0
    Prodigy 195 points

    In the document “Power management units for embedded processors (Rev. E)” from Q1 2011, the TPS65232 and TPS659112 has been suggested for powering C6A816x. Please see following link: http://focus.ti.com/lit/sg/slvt158e/slvt158e.pdf

    I suppose TPS51200 would still be needed for memory supply.

    BR Michael

  • 0 in reply to Michael Iversen
    Intellectual 675 points

    Hello Michael,

     

    Thanks for your response. What about the required parts for DM8147? I need to know which parts are required for powering this SoC.

     

    Thanks,

    Mohammad

  • 0 in reply to Mohammad Kiaei
    Prodigy 195 points

    Hello Mohammad,

    DM814x voltage domains are similar to C6A816x, but the power is claimed to be lower though. I haven't studied the details of TPS659112 but it definately needs EEPROM to be setup by I2C. TPS65232 is HW defined. Sequencing can be applied to both IC's. That's the reason for assuming you can use the same power solution as suggested for C6A816x. Please note that the power up sequence differs between C6A816x and DM814x.

    I can see from http://e2e.ti.com/support/dsp/integra_dsparm/f/625/t/110022.aspx that you will receive the power estimates for your actual use cases, so you will be able to move on from there. Otherwise the DM814x EVM should be orderable in june and shipping in july according to http://e2e.ti.com/support/dsp/integra_dsparm/f/625/p/104922/378228.aspx#378228 in case you want to copy the EVM solution.

    BR Michael