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TPS65073x
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  • 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

  • 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

  • Wiki Page: TPS6507x Unused ADC

    Daniel Acevedo
    Q: What do I do with the AD_IN1-4 pins if I am not using the ADC? A: If the ADC of the TPS6507x is unused, the inputs should be terminated to ground.
    on Sep 19, 2011

  • Wiki Page: TPS650732, TPS650731, TPS65073, TPS65072, TPS65070, TPS6507x, TPS65073x, TPS650xx no use terminals

    Daniel Acevedo
    Q: What should I do with the following unused TPS650732, TPS65070, TPS6507x pins? A: A/D converter inputs: AD_IN1~4: http://e2e.ti.com/support/power_management/pmu/w/design_notes/tps6507x-unused-adc.aspx wLED Boost Converter: If theTPS650732wLED (white light led driver) boost is not used...
    on Sep 19, 2011

  • Wiki Page: TPS6507x Unused THRESHOLD Pin

    Daniel Acevedo
    Q: How should I connect the THRESHOLD pin of the TPS6507x if it is not used? A: THRESHOLD is the input of the /RESET comparator. In the case where /RESET is not used, THRESHOLD could be either connected high (e.g. to SYS) or pulled low (to GND).
    on Sep 19, 2011

  • Wiki Page: TPS6507x Unused USB Pin

    Daniel Acevedo
    Q: What do I do with the USB pin if it is not used? A: Connect the USB pin of the TPS6507x to ground if it is unused.
    on Sep 19, 2011

  • Wiki Page: TPS65070 - Setting LDO1 Voltage

    Daniel Acevedo
    Q: Does the register DEFLDO1 exist? On page 35 of the data sheet it states "the output voltage for LDO1 is defined by the sttings in register DEFLDO1." This is the only place in the data sheet that this register is mentioned? Am I misunderstanding what this is telling me or is this a typo...
    on Sep 20, 2011

  • Forum Post: Re: TPS65070 Driving TFT LCD back-light

    Daniel Acevedo
    As stated in page 35 of the datasheet, you can set the wLED sink current by your selection of the resistors connected to ISET1 and ISET2. The max current sink is 25mA per string. Through the I2C bus, you can select ISET1 or ISET2, set dimming frequency and PWM duty cycle by using registers WLED_CTRL1...
    on Sep 26, 2011

  • Forum Post: Re: TPS65073 -- backlight sometimes fails to turn back on after being powered off

    Daniel Acevedo
    Quentin, After reviewing you schematic, I have determined the issue to be in your selection of the inductor. Based on the procedure on pages 64 and 65 of the datasheet, I have calculated that the inductor needs to be rated for a saturation current of 170 mA. Y ou have selected an inductor with...
    on Nov 1, 2011

  • Forum Post: TPS6507x DCDCx : Internal resistor divider values

    Alexander
    Hi, I need the DCDC1 of TPS65073 at 3.3V at startup (default: 1.8V). If I use an external resistor divider (e.g. 1k5:1k8), the 1k8 resistor is in parallel to the internal resistor divider (which I can not disable, due to my microcontroller needs the 3.3V initially to be able to set the DEFDCDC1.DCDC1extadj...
    on Dec 2, 2011

  • Wiki Page: TPS65070 reading TS with only BAT present

    Daniel Acevedo
    [quote user="ZEN"] Hello, Please teach me a method to acquire "Voltage at TS Pin" information during a SYS driven by BATT only (No AC or USB power supply). [D.A.] Under these conditions you can measure the voltage at TS; however, t he internal reference is only connected...
    on Mar 12, 2012

  • Wiki Page: TPS6507x Unused BAT Pin

    Daniel Acevedo
    Q: How should I connect the BAT pin if it is not used? A: When powering from AC or USB, if the BAT pin of the TPS6507x is not used, connect a 10uF ceramic capacitor to GND. Do not leave this pin floating and do not connect directly to GND.
    on May 22, 2012

  • Wiki Page: TPS6507x Unused VINLDO1/2 Pin

    Daniel Acevedo
    Q: What do I do with VINLDO1/2 if the pin is not used? A: If VINDLO1/2 is not used, connect the recommended 2.2 uF capacitor from VINLDO1/2 to GND and connect VINLDO1/2 to SYS. Do not leave this pin floating and do not connect directly to GND. The output of an LDO can be left open if the LDO is not...
    on Nov 12, 2012

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