Power Management
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Power Management

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TPS65950
Related Posts

  • Forum Post: TWL4030/5030 and TPS65950/930/920/921 : Software Compatibility

    PaulN
    Q: Is there software compatibility between the TWL4030, TWL5030, TPS65950, TPS65930, TPS65920 and TPS65921 devices ? A: Yes. The power companion devices TWL4030, TWL5030, TPS65950, TPS65930, TPS65920 and TPS65921 are fully software compatible for all the features they have in common with one exception...
    on Jan 22, 2009

  • Forum Post: TPS65950 - TPS65930 / TPS65920 : 'Delta' (differences)

    PaulN
    Q : What features do the TPS65930 and TPS65920 devices offer compared to the TPS65950 ? A : The TPS65930 and TPS65920 offer a subset of the features available from the TPS65950 : Both the TPS65930 and TPS65920 (compared to the TPS65950) - No battery charger capability - No DC vibrator drive capability...
    on Jan 23, 2009

  • Forum Post: Re: TPS65950: How to use JTAG for boundary scan

    gge
    I was just trying to dig this information out of TPS65920 TRM and it wasn't that clear. I'm under the assumptation that JTAG setup for the TPS65950 will be the same as that for the TPS65920. Unfortunately I do not see an attached document as stated in your posting. Can you repost or point to...
    on Jan 23, 2009

  • Forum Post: TPS65950 Power Management

    Yuvaraj Velumani
    AVS - Adaptive Voltage Scaling & DPS - Dynamic Power Switching, these two terms I got it from the document sprt495.pdf. In that pdf they have mentioned about a Static Power consumption Management technique known as Static Leakage Management (SLM), I need details about that, because in my system there...
    on Feb 27, 2009

  • Forum Post: Re: TPS65950 Power Management

    Yuvaraj Velumani
    I found the document in the below mentioned link. Can you help me in this concern? http://focus.ti.com.cn/cn/lit/an/sprt495/sprt495.pdf My basic requirement is I have to control the internal peripherals when they are not in use. Ex: turn OFF Mode or Sleep Mode I2C[1,2,3] when we are transmitting...
    on Mar 3, 2009

  • Forum Post: TWL4030/5030 and VAUX3 at 3V

    Adrian Hunter
    It is not entirely clear (from TRMs / DMs) whether TWL4030 or TWL5030 support VAUX3 at 3V. Would someone please clarify which of these devices (and the compatible devices) support VAUX3 at 3V?
    on Mar 5, 2009

  • Forum Post: VINTANA2 Current Consumption

    Suresh Samynathan
    The VINTANA2 powers the Audi Subchip, USB Subchip and Auxillary Subchip. The maximum output current of the VINTAN2 LDO is 250mA; most of the power will be consumed by Audio subchip. The audio sub chip in the TPS65950 is not used in our application. Do you have the VINTANA2 power consumption information...
    on Mar 14, 2009

  • Forum Post: TPS65950: Smart Reflex

    Yuvaraj Velumani
    I found that we can enable smart reflex method by enabling SMARTREFEX_ENABLE bit in DC/DC_GLOBAL_CFG[3] register. I found two such registers with same address but with different Instance POWERPM_RECEIVER & PM_RECEIVER. What does it mean? Do we need to use the dedicated I2C for enabling this smartreflex...
    on Mar 24, 2009

  • Forum Post: Re: TPS65950: Smart Reflex

    Yuvaraj Velumani
    Do we need to use the dedicated I2C for enabling this smartreflex SP-I2C or the general I2C GP-I2C for this? [In my system hardware i have connected I2C2 as GP-I2C & I2C4 as SP-I2C]. I2C4 is used for smart reflex control. How to enable the SMARTREFLEX_ENABLE bit in the DC/DC_GLOBAL_CFG register....
    on Mar 25, 2009

  • Forum Post: TPS65950: Smart Reflex

    Yuvaraj Velumani
    Do we need to use the dedicated I2C for enabling this smartreflex SP-I2C or the general I2C GP-I2C for this? [In my system hardware i have connected I2C2 as GP-I2C & I2C4 as SP-I2C]. Answer1:I2C4 is used for smart reflex control. How to enable the SMARTREFLEX_ENABLE bit in the DC/DC_GLOBAL_CFG register...
    on Mar 25, 2009

  • Forum Post: TPS65950: LDO Supplies

    Yuvaraj Velumani
    In what state we should keep the the unused LDO's? Either we should provide any minimum load to make the other LDO's active or we can keep it in default voltage level? In my system I am not using VAUX1.OUT, VAUX2.OUT, VAUX3.OUT, VMMC2.OUT. In what state or voltage level we should keep these...
    on Mar 25, 2009

  • Forum Post: TPS65950 Power Management Sequence

    Yuvaraj Velumani
    Can anyone tell me in what sequence(flow) or what all steps we need to do for doing power managment using TPS65950 & OMAP 3525? any detail flowchart is there for the entire core power management?
    on Mar 27, 2009

  • Forum Post: VMODE & nSLEEP,CLKREQ Pins Selection

    Yuvaraj Velumani
    I have a doubt regarding the VMODE (1,2) pins. Is this purely related with hardware control are with Software. As for my understanding, 1. we need to set the respective voltage level(by enabling VMODE) for VDD1 core supply using VROOF & VFLOOR registers. 2. If we go for this there is no need...
    on Mar 30, 2009

  • Forum Post: TWL4030 - Motor Driver (H-Bridge) Questions

    Mark Pearson
    Has the TWL4030 (H-Bridge) been tested with driving a DC motor? If so, which motor and under what test situations? Any issues with driving a DC Vibration motor in an AC (H-Bridge) design? Does TI recommend a particular vibration motor for use with the TWL4030... The TWL4030 H-Bridge drive is spec'd...
    on May 6, 2009

  • Forum Post: Re: TPS65920 VIO initial ramp to 0.8V before rising to 1.8V later

    gge
    We are very interested in this too. I'm designing a board using the OMAP3503 and the TPS65920 instead of the TPS65950 and would like to know how this was resolved. If I come across any info on the Todd I will pass it onto you. Please let me know how this was fixed. Has anyone else successfully designed...
    on May 7, 2009

  • Forum Post: Audio Gross and Fine Gain Adjustments for the TPS65950

    Brad Nielsen
    I had a question that came up today on TIs TPS65950,the trouble is, we can't get the ARXR2PGA register gain control to work properly. This register has two fields; one fine gain and one course gain settings. We hear no change in audio level for any setting between mute and 0dB in the fine gain...
    on May 8, 2009

  • Forum Post: TPS65930 Keypad expansion to support more keys

    srinivas ramana
    We need a few technical details on Keypad support by TPS65930 for our project.. As you know it supports only a 6*6 matrix. We need a minimum of 56 keys support for our product. So, we are planning to use few GPIO pins of TPS for adding few rows and columns. We would like to know if any such designs...
    on Jul 15, 2009

  • Forum Post: TPS65950 + OMAP35x charging a discharged Li-Pol battery

    Pev
    Hi All, We're working on a design based on OMAP3503 + TPS65950. While our hardware is in production, I've been looking at power management and battery charging on the Rev D Mistral OMAP35x EVM. We've done a few mods to the board to bring it in-line with the reference design in 8-1(B)...
    on Aug 13, 2009

  • Forum Post: TPS65950 power consumption

    Wade VonBergen
    In table 4.21 of the data manual, it indicates power consumption under various scenarios. What assumptions are made with respect to power for the audio codec, and USB transceiver in this table? Thanks, Wade
    on Aug 21, 2009

  • Forum Post: Re: TPS65950: LDO's Power Up

    Yuvaraj Velumani
    Hi Rajesh, Thanks for your reply. Now I am able to get the supply after configuring the DEV_GRP bits. But the datasheet power-on sequences states that all the LDO supply will be turned ON & it will in SLEEP Mode with lower power consumption. Anything we need to do for this. We have configured TPS...
    on Aug 21, 2009

  • Forum Post: TPS65950 MADC ADCIN3 & ADCIN6

    Yuvaraj Velumani
    Hi, I am facing an issue in MADC. I have connected 3 analog voltage signals to ADCIn2,3 & 6 respectively. In that from ADCin2 i can able to read the data, but ADCin 3 & 6 i always Zero. I have enabled DEFAULT_MADC_CLK_EN & MADC_HFCLK_EN bits in GPBR1 register and HFCLK_FREQ bit is configured...
    on Aug 22, 2009

  • Forum Post: Battery Power Loss

    Chris R
    There is plenty of documentation about detecting overvoltage with the TPS65950. However, can the voltage sense circuitry in the TPS65950 be used to detect when the battery power is about to drop (or has already dropped) too low to power the OMAP3530, and send an interrupt to the 3530 before it dies completely...
    on Oct 6, 2009

  • Forum Post: Power Up Problems with TPS65920

    Howard Robson
    I am in the prototype testing phase on a project using OMAP3530CBC and TPS65920. We have 5 prototype boards, and with 2 of them we have problems with the power up sequence of the TPS65920. In these cases we only get VIO powering up - VDD1 and VDD2 never power up. We would like to resolve this problem...
    on Oct 9, 2009

  • Forum Post: TPS65950 BCI voltages

    Grazvydas Ignotas
    Hi, How are the BCI ADC voltage registers (BCIVBAT, BCIVAC, BCIVBUS) supposed to be interpreted? The TRM only mentions scaling of 0..0x3ff -> 0..6V for overvoltage threshold register. Using this I'm getting reasonable values from BCIVBAT and BCIVBUS, but BCIVAC result is too low (~3V instead...
    on Nov 27, 2009

  • Forum Post: Re: MADC conversion (TPS65950)

    Sean Heitz
    Should I only have to set the channel bit in SW1SELECT_LSB register one time or each time before I start another conversion. I am doing the process described above once a minute. If I want to performa conversion once every second do I need to set the SW bit in the CTRL_SW1 register every time I...
    on Jan 3, 2010
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