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  • Forum Post: PMIC for OMAP3505

    Mike Segal
    is there a suitable TI PMIC already available or in development for OMAP3505?
    on Aug 20, 2009

  • Forum Post: Power Management Unit suitable for TMS320DM365

    AKV
    Hi I need a Power management IC.My requirement is as follows. Can you please suggest a suitable single chip TI part? Number of Channels required-6 (4 DCDC Converters+2 LDOs) DCDC1 Output-Fixed or adjustable to 1.35V/1A for DM365 processor DCDC2 Output-Fixed or adjustable to...
    on Jul 22, 2010

  • Forum Post: PMIC & OMAP JTAG chain ?

    Philippe MAIRE
    Hi, Can I chain PMIC & OMAP jtag connexions ? I am afraid that when in test mode, the PMIC could stop providing power, then the OMAP turns off and breaks the chain... Have any of you tried this successfully ?
    on Jul 22, 2010

  • Forum Post: TPS65251 PGOOD & Reset conditions ?

    kim young hun
    Hello , Dear Q1) Why recommended to use pull-up resistor from the PGOD to the output of buck1 ? Another side effect buck 1,2,3 ? Q2) Reset conditions? Datasheet conditions : Measured after the later of buck 1 or buck 3 power-up successfully I think buck 1,2,3 AND mod . I...
    on Jan 10, 2011

  • Forum Post: TPS65251 PGOOD Question ?

    kim young hun
    Hello , Dear 1. If you use 2 chips pull-up, whar should i do ? or 1chips pull-up? I think , there is no problem because active high 2. When using an external power supply that you can use the pull-up? [The PGOOD is pulled up when all three buck converters’ outputs are more than 90...
    on Jan 13, 2011

  • Forum Post: TPS65232 Question ?

    kim young hun
    Hello Dear 1. what is the minimum voltage for BUCK1 ? datasheet : 3.3V(min), 6.1V(max) 2. why is the differnet EVM reference and datasheet ? 3. 1.8V output from BUCK1 possible
    on Jan 18, 2011

  • Forum Post: Re: Connection problem about "PWRHOLD" pin of TPS65910 for AM3517 ?

    Weihung Wen
    Hi! Gandhar: Thanks for your answer, but I find TI's application report (TPS65910 User Guide For AM3517/AM3505 Processor), "PWRHOLD" is connected to VDD2 or VIO. But in cranboard;s schematic, it connected to VRTC. What difference from them? (because VIO, VDD2, VRTC has different...
    on Mar 4, 2011

  • Forum Post: Re: TPS65950 I2C Control Interface Hangs

    Gil Zhaiek
    Thanks Tony! Gandhar, we did look at the signals and they look fine. Clean and in great shape. What I am thinking is that looking at the tps65950 code in the driver - drivers/mfs/twl-core.c - there are mutex locks before each of the i2c_transfer. These mutex locks are only per driver and not per...
    on Apr 7, 2011

  • Forum Post: TPS65920 duty cycle problem on 32k clock

    Philippe MAIRE
    Hi, On my OMAP board, the 32,768 Hz clock is a square clock provided by an external RTC. The duty cycle of the clock is at about 40%, and I just noticed there is a requirement of 45/55% in the SWCS037E datasheet. The OMAP on its side does not require a particular duty cycle on this clock. ...
    on Apr 8, 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: CLKEN not de-asserted down when SYS_CLKREQ on DM3730 is de-asserted

    David Stewart
    Normal 0 false false false MicrosoftInternetExplorer4 In order to reduce power consumption when our platform is suspended (RETENTION OFF MODE), we are trying to get the TPS65950 to de-assert CLKEN when the DM3730 goes into an OFF mode...
    on Apr 21, 2011

  • Forum Post: omapl138 core voltage 1.3V at 456MHz

    ben zhan
    Hi, I want to run my omapl138 board at 456MHz, but the core voltage is 1.3V , is there a PMIC to be suggested? I checked the power supply reference designs from the Analog eLAB,but all of them focus on core voltage 1.2V. Thanks!
    on Jun 8, 2011

  • Forum Post: Is there a TPS65930 with touchscreen added for the AM3703?

    Mike Bisch
    I am looking at the TPS65930 to use with an AM3703 processor. I also need a 4-wire touchscreen controller which I've seen in other PMIC parts. I can use the TSC2046, but I was wondering if there's an integrated solution? I need the LCD Driver, USB & RTC, but not the keypad (not enough inputs...
    on Jun 14, 2011

  • Forum Post: TPS65910 power up sequence without pushbutton

    Robert Servilio
    Hello, I am designing the power circuit for an AM3703. I have a couple of questions/clarifications. 1) The "TPS65910 User Guide for OMAP3 Family of Processors" shows power up sequencing being initiated with a falling edge of the active low pushbutton output triggering input PWRON ( Figure...
    on Jun 24, 2011

  • Forum Post: TPS65920/30 with AM3715-1GHz

    Frank S.
    Hi, we are planning a design with a AM3715 and the TPS65920/30. The design should provide the possibility to realize a version with AM3715CUS (800MHz) and AM3715CUS100 (1GHz). I have found a hint that the TPS65920/30 is not suitable for OPP1G (operation point 1GHz) - i am a little bit confused...
    on Jun 30, 2011

  • Forum Post: tps65070 capacitance on touch lines

    Ray Kampmeier
    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 6, 2011

  • Forum Post: tps65070 capacitance on touch lines

    Ray Kampmeier
    For ESD measures, I have added capacitors between the tps65070 touch lines and ground . At what value capacitance will I start seeing problems with my touch screen's performance? The touch screen has an X plate resistance of 300ohm and a Y plate resistance of 450ohm thanks
    on Jul 12, 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

  • Forum Post: TPS65951 Linux driver availability?

    C.J.
    Hi, Is there any reference driver available for TPS65951 on Linux? We are considering using this PMIC to replace TPS65950 on DM37x EVM. I saw there are quite a bit of registers difference btw TPS65950 vs 65851. Are there any sample driver for TPS65951? Thanks for any info.
    on Jul 25, 2011

  • Forum Post: TPS65073 -- won't power off properly or turn back on

    Quentin Davis
    I'm trying to use the TPS65073, and when trying to turn it off I apparently can't get out of the state POWER OFF 3 from Figure 33 of the datasheet -- SYS is still powered and it won't turn back on unless I remove all power sources. As shown in the figure below, the PB_IN node is pulled...
    on Aug 26, 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

  • Forum Post: TPS65930 PWM output for Vibration Funcrion

    March Jasper
    Hi I thinking Vibration function by TPS65930 PWM 0 and PWM 1 oytput. Vibration function use DC Mortor. Question Can Possible use PWM0 and PWM1 output for Vibration DC Mortor control? And If use PWM Output for Mortor control , Could you tell me a point to notiice?? Regard Jasper
    on Nov 1, 2011

  • Forum Post: About TPS65950 Wake UP from Sleep Mode and How to disable Wake Up Mode ?

    March Jasper
    Hi I have question about TPS65950 Wake UP function. The TPS65950 wake up when jusy connect to USB OTG or USB Charger. TPS65950 wake up was by supply voltage over 2.7V. Is this wake up condition for need over 2.7V compare than supply voltage ? Qurstion 1) What is wake Up condition ?...
    on Dec 12, 2011

  • Forum Post: Re: What's the differences between TPS65910 and TPS65910A?

    Rich Chen
    Following question on TPS65910. Is there TPS65910A3 designed for AM335 with DDR3 because DDR3 uses 1.5V instead of 1.8V for DDR2? Best Regard, Rich
    on Jan 10, 2012

  • Forum Post: Restart problem with TPS65930

    Nambirajan Esakkimuthu93283
    Hi, We are facing a problem that DM 3730 restart sometimes, when we plugged in the DC charger to our device. This is happening when the device is ON . We're using PMIC TPS65930 .Can you please guide me through this problem? Thanks & regards, Nambirajan E
    on Jan 23, 2012
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