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TPS65073
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  • Forum Post: TPS65073 DVS slew rate

    ChristianHoefling
    Question : What is the expected maximum slew rate if DEFSLEW is set to “immediate”? Customer is trying to get the voltage scaling as quick as possible (they use DEFDCDC3 to change between 2 voltages). Customer would like to know how long they have to wait from an OMAP3 perspective before...
    on Jan 30, 2010

  • Forum Post: Re: TPS65073 DVS slew rate

    ChristianHoefling
    Answer : Setting DEFSLEW to immidiate will result in approx 10mV/us slew rate. Originally there was a GO bit that needed to be set to start voltage change. The option immidiate did not need the this GO bit to be set. This function was removed, so all slew rate option start voltage change with...
    on Jan 30, 2010

  • Forum Post: TPS65073 - Exposed Thermal Pad location

    Michael Day
    The TPS65073 exposed thermal pad appears to be centered in the M echanical Data page of the datasheet. The Thermal Pad Mechanical Data page shows that the pad is off center. Which is correct?
    on Feb 11, 2010

  • Forum Post: TPS6507x Power Path

    ChristianHoefling
    Question : The TPS6507x datasheet does not explain the operation of the Power Path in detail. Can you please explain how the Power Path is regulating the Charge Current voltage under der following conditions below? Case 1: USB (or AC) input present and Battery is not Case 2: USB (or AC) input...
    on Feb 26, 2010

  • Forum Post: Re: TPS65073 - Exposed Thermal Pad location

    Michael Day
    The package Mechanical Data drawing is not dimensioned, so it can not be used to understand or define the thermal pad. Thermal Pad Mechanical Data drawing is dimensioned and is intended to show the thermal pad dimensions and location. Please note that the TPS65070 and TPS65073 do not have a "PowerPAD"...
    on Mar 2, 2010

  • Forum Post: TPS65070 wLED boost connections if not used

    Vladimir Svinolobov
    Greetings. A little question about using TPS65070 wLED boost block. I don`t need it in my project, so i want to turn it off. So the question is how to do it properly. Can i just left it`s legs not connected or i must connect them to ground? Best regards, Vladimir
    on Mar 8, 2010

  • Forum Post: Re: TPS65070 wLED boost connections if not used

    Michael Day
    If the TPS65073 wLED (white light led driver) boost is not used, connect ISET1 with a 100kohm resistor to ground ISET2 with a 100kohm resistor to ground ISINK1 to ground ISINK2 to ground FB to ground L4 to ground
    on Mar 8, 2010

  • Forum Post: Re: TPS65073 with OMAP3530 clarifications requested

    ChristianHoefling
    Hello Bjorn, please find answer embedded below 1) If not using a battery or USB, do you still need to connect any decoupling caps to these pins, as stated in the datasheet? In case you are not using a battery or USB, you can connect both USB and BAT pins to GND. 2) Similarily, how to connect...
    on May 19, 2010

  • Forum Post: Re: TPS65070 - not using touchscreen

    Michael Day
    If the TPS65073 touch screen controller is not used, connect AD_IN1 (TSX1) to ground AD_IN2 (TSX2) to ground AD_IN3 (TSY1) to ground AD_IN4 (TSY2) to ground Bypass and INT_LDO still need their recommended capacitor connected to maintain stability of the internal power supplies.
    on Aug 6, 2010

  • Wiki Page: TPS65072 - Exposed Thermal Pad location

    Michael Day
    Q: TPS65072 - Exposed Thermal Pad location by 10449 The TPS65072 exposed thermal pad appears to be centered in the M echanical Data page of the datasheet. The Thermal Pad Mechanical Data page shows that the pad is off center. Which is correct? A: Re: TPS65073 - Exposed Thermal Pad location by 10449...
    on Aug 27, 2010

  • Forum Post: Re: TPS650732 RESET

    ChristianHoefling
    Once the PMU has started up, pulling /PB_IN low will not shut down the DCDC converters. You need to pull POWER_ON low, to disable the converters. The only way you can use the /PB_IN to shutdown the PMU is, detect press on pushbutton with PB_OUT on the processor side. Based on an interrupt...
    on Aug 30, 2010

  • Forum Post: Software Drivers for TPS6507x

    ChristianHoefling
    Question : A customers is looking for software driver fro the TPS6507x family They are using a Battery module in their design and want to use the Battery Management feature of this PMIC. Apparently there is no existing driver to take care of this feature. Could you please help in getting the...
    on Sep 1, 2010

  • 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: OMAP3530...and not using a TPS65690

    ChristianHoefling
    Hello Patrick, There is an application note available that details how to power the OMAP35x using the TPS65073. See link below http://focus.ti.com/analog/docs/litabsmultiplefilelist.tsp?literatureNumber=slva376&docCategoryId=5&familyId=759 If SYS_OFF mode is required TPS65073 should...
    on Sep 9, 2010

  • Forum Post: Re: TPS65073 Converters Power Up

    ChristianHoefling
    Please have a look at page 34 figure 33 of the TPS65073 datasheet. Figure 33 shows the state diagram of the TPS65073. There is a difference if the device is powered from - AC / USB - BAT 1) In case device is powered from AC/USB As soon as input voltage is applied to AC or USB the device...
    on Sep 28, 2010

  • Forum Post: TPS65073 Linux Drivers

    Michael Day
    Do Linux Drivers exist for the TPS65073?
    on Nov 30, 2010

  • Forum Post: Re: TPS65073 Linux Drivers

    Michael Day
    A TPS65073 Linux driver is available at http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap-2.6.git;a=blob;f=drivers/regulator/tps6507x-regulator.c;h=020f5878d7fff19bb35f58b7cb2745d10beeb484;hb=063d907edaf3fbf9776c189c3e02f2c7a129d18c You can also find this by going to http://git.kernel...
    on Nov 30, 2010

  • Forum Post: Re: Powering up TPS65070 with huge capacitors on SYS

    ChristianHoefling
    Hello Anisimov, The slow increase of the SYS voltage in the range 0V < VSYS < 1.8V is the expected behavior of the device. There is a soft start function inplemented on the SYS output. In case the device is only powered from VBAT : The device is turned on by pulling /PB_IN low. SYS...
    on Dec 23, 2010

  • 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: 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: 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 Powered From 3.3V on SYS?

    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 prefer to use 3.3V since the datasheet curves indicate...
    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

  • Forum Post: Re: tps6507x and Battery life

    Michael Day
    You can control the TPS65070 A/D with the I2C settings. You can turn it on and off, select which A/D to read via the I2C interface.
    on Aug 12, 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
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