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TPS6507x
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  • Forum Post: Re: Software Drivers for TPS6507x

    ChristianHoefling
    Answer : Please note that we do not provide any drivers for this IC. The customer is intended to do this on his own. Anyhow, the customer should be able to use this IC with minimal software development.
    on Sep 1, 2010

  • Forum Post: Re: Troubleshooting Steps for TPS6070

    Daniel Acevedo
    In the case where the supply is to power up when 5V is applied to the AC pin, the pin named PB_IN (which has an internal pull-up to AVDD6) should be left open and pin POWER-ON needs to be pulled high. If the TPS65070 is powered from the BAT pin, PB_IN needs to be tied low to start the converters.
    on Jan 19, 2011

  • Forum Post: Re: TPS65070 - Externally power sequencing control

    Daniel Acevedo
    Hitesh, The supplies of TPS6507x can be sequenced with the EN_DCDCx (enable) pins per page 33 of the datasheet. To do so, register DCDC_SEQ[2:0] has to equal 101. The TPS65073 has this (DCDC_SEQ[2:0]=101) set as the default value as visible in Table 9 of the datasheet.
    on Feb 4, 2011

  • Forum Post: TPS65070's VSYS seems abnormal on my custom OMAP-L138 board.

    Seyoung Park
    Hello, I made my OMAP-L138 application board based on Logic EVM. It is supplied only AC-5V but made up like "Logic OMAP-L138 EVM". Seeing below the capure is VSYS from SYS pin. Why is SYS voltage pulsating? TS --- open #PB_IN -- open THRESHOLD--<300k>--VSYS ...
    on Feb 22, 2011

  • Forum Post: Re: TPS65070's VSYS seems abnormal on my custom OMAP-L138 board.

    Seyoung Park
    Thank you Mr. Acebedo. Now "0.02R" resister between L1/2/3 and OMAP-L138 is opened not to supply power. L4 is grounded(to the GND) and is checkted stable 0V on oscilloscope. "5V -> AC(in)" current is checked to 1.4mA by multimeter. Seeing below caputure is the voltage...
    on Feb 23, 2011

  • Forum Post: Re: TPS65070 CON_CTRL1 Parameter Setting

    Daniel Acevedo
    What are you trying to achieve by programming through I2C? If start-up sequencing, I recommend using one of the TPS6507xx variants which provide preprogrammed internal sequencing to power up the processor. Once the processor is powered up, it can issue I2C commands to the TPS6507xx.
    on Mar 3, 2011

  • Forum Post: Re: TPS65073x DCDC3 Vout Range @ 1.5A

    Daniel Acevedo
    The TPS65070 can, by default, supply 1.5A at 3.3V on DCDC2 if DEFDCDC2 = HIGH. DCDC3 can supply 1.5A at 3.3V by setting DEFDCDC[5:0] = 111111 and by connecting VDCDC3 to VOUT3 or by setting DEFDCDC[7] =1 and connecting an external resistor divider from VOUT3 to VDCDC3. This applies to DCDC1,2,3.
    on Mar 24, 2011

  • Forum Post: Re: TPS65073x DCDC3 Vout Range @ 1.5A

    Daniel Acevedo
    The power path voltage drop is specified in the datasheet for AC (Isys=1A), BAT (Isys=1A) and USB (Isys=500mA and 800mA):
    on Mar 28, 2011

  • Forum Post: Re: TPS65070 - power dissipation limits

    Daniel Acevedo
    Boris, Your question is less related to the TPS65070 IC and more related to your system's thermal performance for which you should visit ti.com/thermal to understand. The Dissipation Ratings table in the TPS65070 datasheet is power dissipated (Pd=Pin-Pout) and not just output power; this table...
    on Apr 11, 2011

  • Forum Post: TPS65070 Support for TMS320C6748 DVFS?

    Scott Burton
    Hello Forum, My design will be using a TPS65070 to power a TMS320C6748 DSP. This DSP supports Dynamic Voltage and Frequency Scaling (DVFS) on its core logic (CVDD) rail. With DVFS the DSP commands via I2C that this rail be changed as required between 1.0/1.1/1.2/1.3V operating points to optimize performance...
    on Apr 13, 2011

  • Wiki Page: TPS65070 power for OMAP-L138 at 450MHz (1.3V core Vout)

    Daniel Acevedo
    Q: TPS65070 power for OMAP-L138 at 450MHz (1.3V core Vout) by 1129650 Customer is using OMAP-L138; he is already i n layout and he uses TPS65070. Since they would like to increase the speed of the chip to 450MHz, they need to increase the core voltage to 1.3V. Can the TPS65070 support...
    on Apr 20, 2011

  • Forum Post: Re: TPS65070 Powered From 3.3V on SYS?

    Daniel Acevedo
    Scott, See my comments below: Scott Burton Hello Forum, In my TPS65070 design I plan to power the TPS65070 from a 12V source via a DC/DC converter. This DC/DC converter output could be either 5V or 3.3V, since I already require both of these rails for other loads in my design. However, I’d...
    on Apr 20, 2011

  • Forum Post: Re: tps65070 capacitance on touch lines

    Daniel Acevedo
    The 100pF spec. is the maximum total capacitance for each pin (T SX1,TSX2,TSY1 and TSY2) to ground, internal to the SAR ADC.
    on Jul 6, 2011

  • Wiki Page: TPS65070 capacitance on touch lines

    Daniel Acevedo
    Q: tps65070 capacitance on touch lines by 1820788 The TPS65070 datasheet states on page 10 that total capacitance at pins TSX1,TSX2,TSY1,TSY2 to GND is 100pF. If this the characteristic capacitance on the device? Or is 100pF the max capacitance that can be placed on the TSX1,TSX2,TSY1 and TSY2 lines...
    on Jul 18, 2011

  • Wiki Page: TPS65070 Low Charge Current

    Daniel Acevedo
    Q: TPS65070 Low Charge Current by 1129650 I have the battery supplying 1.3A to the TPS65070. When I connect 5V to the AC pin I expect the battery to stop supplying the current and start charging at a rate of Kist/Riset. However, I only see about 700 mA instead of the expected 1.2 A (for Kiset ...
    on Aug 8, 2011

  • Wiki Page: TPS65070 Batt charge current

    Daniel Acevedo
    Re: TPS65073x Batt charge current by 1129650 [quote user="ZEN"] Hello, Please teach an expression to convert a register level of the A/D conversion result that it retrieved into a real charge electric current level. [D.A.] The full scale charge current will depend on the value of...
    on Aug 17, 2011

  • Forum Post: TPS65073 -- won't turn on without a battery

    Quentin Davis
    I'm trying to use the TPS65073 in a battery-powered product that can also be attached to an "AC" power source or USB power. I'm worried about the condition where the battery is dead/broken, but the user still wants to turn it on via USB power or wall-wart power. As shown in the figure...
    on Aug 31, 2011

  • Wiki Page: TPS6507x Unused Thermistor, TS

    Daniel Acevedo
    Q: What should I do with the TS pin if the thermistor is not used? A: If the thermistor on pin TS are not used, a 10k-Ohm resistor should be connected from pin TS to ground.
    on Sep 19, 2011

  • Wiki Page: TPS6507x Unused wLED Boost Converter

    Daniel Acevedo
    Q: what should I do with the wLED Boost Converter pins if I am not using the white LED boost? A: Please make the following connections if the wLED Boost Converter of the TPS6507x is unused. L4 - to ground ISET1 - with a 100kohm resistor to ground ISET2 - with a 100kohm resistor to ground...
    on Sep 19, 2011

  • Wiki Page: TPS6507x Unused ISET Pin

    Daniel Acevedo
    Q: What do I do with the ISET pin if it is not used? A: The ISET pin should be connected to a 100k-Ohm resistor to ground if the pin is unused.
    on Sep 19, 2011

  • Wiki Page: TPS6507x Unused /RESET Pin

    Daniel Acevedo
    Q: How should I connect the /RESET pin if it is unused? A: The /RESET pin of the TPS6507x is an open drain output and should be connected to ground if it is not used.
    on Sep 19, 2011

  • Wiki Page: TPS6507x Unused BYPASS Pin

    Daniel Acevedo
    Q: What do I do with the BYPASS pin if it is unused? A: If the BYPASS pin is not used, connect 10uF capacitor from BYPASS to GND. BYPASS voltage is used as a reference fro the ADC and the charger. Do not leave this pin floating and do not connect directly to GND
    on Sep 19, 2011

  • Wiki Page: TPS6507x Unused INT_LDO Pin

    Daniel Acevedo
    Q: What do I do with the INT_LDO pin if it is not used? A: Connect a 2.2uF capacitor from INT_LDO to GND. INT_LDO is an internal reference. Do not leave this pin floating and do not connect directly to GND.
    on Sep 19, 2011

  • Wiki Page: TPS6507x Unused /INT Pin

    Daniel Acevedo
    Q: How should the /INT pin of the TPS6507x be connected if it is unused? A: The /INT pin of the TPS6507x is an open drain output and should be connected to ground if it is not used.
    on Sep 19, 2011

  • Wiki Page: TPS6507x Unused AC Pin

    Daniel Acevedo
    Q: What do I do with the AC pin if it is not used? A: If the AC pin of the TPS6507x is not used connect a 1uF capacitor from AC to GND.
    on Sep 19, 2011
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