Forum Post: RE: bq20z45 PRES application
Mike,If you are not going to remove the pack from the system, then you can set the NR bit high in the Operation CFG B register and the device will ignore the PRES pin. If you want to keep the NR but...
View ArticleForum Post: About tps2553
May I use TPS2553 in order of the following?1.I input to EN pin 5V.2.I input to IN pin 5V.
View ArticleForum Post: RE: LM5117 tolerance to switching spikes coupling to LO output pin
Hi GavinYour thinking is right. -0.3V limitation is due to diode clamp inside. The worry is the overheating of the internal clamp diode.In worst case, the diode drop can be 0.3V, usually it is higher...
View ArticleForum Post: RUK 20-pin QFN Socket
Hello!I am looking for information on suppliers of RUK sockets (20-pin QFN w/ power pad - http://www.ti.com/lit/ml/mpqf220b/mpqf220b.pdf). I have seen that some power devices (see link below) use this...
View ArticleForum Post: RE: BQ78PL116 API Example Request
Pete,I do not have a VB example published. You can use the API tool to communicate to the device. This tool is is available for download under Software from the TI PL116 website. This tool will stream...
View ArticleForum Post: RE: problems about C6678 EVM core power design
The Fusion GUI is designed to provide a basic functioning rail design that will work for many applications but most customers will make modifications based on their own typical component vendors and...
View ArticleForum Post: bq20z75 V1.60 - SCD and 0x0041 command........
Dear all,During testing / development work with our battery system I have experienced the following:High discharge current pulses that result in safety status bit SCD being set - when I try to do a...
View ArticleForum Post: BQ27510-G2 fuel gauge to charger BQ24072 connection
Hello,What is the best way to interconnect the fuel gauge BQ27510-G2 and the charger BQ24072? and I want to only use one battery pack thermistor for both IC'sFirst can this be done if so how ?Or is it...
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Forum Post: RE: Resistors selection and PCB layout of TPS7A3001/TPS7A4901
Hi Darwin:Thanks very much for your reply. After reading the article you provided, I summarized it as follows:1, large resistors are needed to increase the power efficiency;2, large feedback resistors...
View ArticleForum Post: RE: bq2060: Learning Cycle and Voltage Measurement
I believe clearing the Relearn_Flag is done by setting EDV2 to your fully discharge parameter. In my case I'm setting it to 8.5V. The trick I had was with using the EV2000-60 software. When...
View ArticleForum Post: RE: LM3150 gate drive capabilities
Hello Geovid,I have generated a webench design with 60V FETs (see attached).(Please visit the site to view this file)Could you please share your webench design?For what concerns the driver capability...
View ArticleForum Post: RE: UCC28600EVM-65W modifications for 36VDC, 1A Output
The capacitor after the bridge diodes; note that the 65W EVM uses 120uF, the PMP design uses 0.22uF.
View ArticleForum Post: RE: bq78pl116 design capacity
That is a typo in the equation. Address 0x10 is the FullChargeCapacity. It should not read RemainingCapacity. I did not see the reference that the Update Run Time to Full is not supported on page 81.
View ArticleForum Post: RE: 3V to 20V Boost for Low Current Application
Yes, it operates down to no load just fine. There is a whole family of TPS6104x devices with various features that might make your design a little easier.
View ArticleForum Post: RE: TPS61070 Operation
You are likely using way too much output capacitance. The datasheet says that the Cout should be around 10uF. The internal compensation is set for this, so by going 100x this value, you are likely...
View ArticleForum Post: RE: TPS65950 starting events
Shekhar,I have not seen a single device which gets power up on insertion of main power(VBAT) so this is the errata. Please also tell us if there is any plan to remove errata.In our case we don't have...
View ArticleForum Post: RE: DCR010505U - heat and no output.
The DCR010505 absolute operational maximum output current is 200mA. Any current above this limit can shutdown the converter.Tom
View ArticleForum Post: RE: LM22678 behavior when the input voltage drops and recovers...
When the input voltage dips near the UVLO and then back up, the internal logic can get confused and keep thepart from starting. The extra input cap can keep the input voltage up longer and slow down...
View ArticleForum Post: RE: TLC5947 Serial daisey chains.
Have found a competitors product with functions I am looking forthat I will be using for prototyping.Admin can close this thread.
View ArticleForum Post: RE: LM5574 Frequency "Glitch"
Hello Brian,what can cause the spikes are stray inductance of the PCB layout.I would like to take a look at your PCB layout and please share your webench design and some scope shots of the...
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