Forum Post: RE: Buck PSU - 10~32VIN with FSW = 600KHz (TPS54240 / TPS63020...
Jeferson,The advantage is the internal control circuitry remains powered allowing it to boost from a lower input voltage. This method is typically only useful when boosting the input or input voltage...
View ArticleForum Post: i2c communication issue to BQ27505 Fuel Gauge
Hello, our design uses 3 TI chips belowMSP430F5438 micrcontrollerBQ24075 Li-Ion Battery Charger and Power-Path Management ICBQ27505 Fuel Gauge. We are seeing an i2c communication issue where if the...
View ArticleForum Post: lm25119 Evaluation Module CAD File.
Hello,I am a student from MIT College, India. I am interested in building a power supply using lm25119 IC.Is it possible to provide Eagle CAD layout of LM25119 evaluation module for...
View ArticleForum Post: BQ25504 interfaced with 0.5V - 0.7Wp solar cell
I'm engaged with the design stage of a standalone device powered by a solar cell and a battery. Due to technical and energetic reasons, I have to use a 0.7Wp single cell (no load voltage is about 0.55V...
View ArticleForum Post: bq2060a Device Reset command and EEPROM SMB through-connection
I am experimenting with a laptop battery that uses the bq2060a. I have been able to read and write all commands, including the ManufacturersAccess 0x00, 0x0606 to connect the SMB bus to the EEPROM and...
View ArticleForum Post: RE: Short circuit RMS current for DRV8301 ( TPS54160 )
From page 20 of the datasheet : "During overcurrent conditions that pull the output voltage low, the error amplifier responds by driving the COMP pin high, increasing the switch current. The error...
View ArticleForum Post: RE: bq34z100 battery gauge problem(RemainingCapacity &...
HwangI reviewed your gg file. You have the Number of Series Cells set to 7, but the Voltage Divider is set to 37994 mV. That would mean that the maximum cell voltage is 5.4V. Is this true? Did you go...
View ArticleForum Post: RE: most power efficient structure, parallel or series LMR24210
never mind, I can see a significant difference in serializing the converters and picking the optimum device at each stage.
View ArticleForum Post: RE: SN754410 H-bridge driver [ Logic and Power ground ]
Thank you for your response, that's very helpful.Would you recommend adding a ferrite bead in series with each motor terminal? that way noise from the motor will not be transmitted back to the chip.
View ArticleForum Post: Current Source Like LM317 but with LDO device
Hello alls,someone suggests like use a LDO devices for current limiter/source like LM317 topology. LM317 has 2,5V drop out, I need less drop out like 1,25V o so onAnticipated ThanksGiovanni
View ArticleForum Post: RE: Multiplexing using TLC5951
Hi. Thanks for your helpful comment. I'm wondering if you have something beefier than the TLC59213A, perhaps something that can dish out up to 7 amps per line for 8 lines (one at a time). I'm using...
View ArticleForum Post: RE: Output capacitors for new PTH04T230 design
Guy: This TT selection is in line with the turbo trans data.PTH04T230W with 680uF x 2 ESR 4 mΩ each , 1.5A transient response with 3.57kΩ Rtt= 3.57 kΩ= 18.5mV . 3 x100uf ceramics will reduce...
View ArticleForum Post: RE: TPS28226 PWM Threshold Levels
John,From the Engineering Support group:-This part should be compatible with 3.3V parts driving this gate driver, as an input less than 1V would be considered a low, and an input more than 2.1V would...
View ArticleForum Post: RE: TPS24700
Thanks. One more question: if the TPS24700 is configured for a certain current limit (5A for example), and a power supply cannot provide the full current during inrush, what will happen? Is it just...
View ArticleForum Post: Not rechargeable battery, calculating the remaining capacity
Hello,I have a not rechargeable battery (LSH20) with capacity of 13 Ah and a BQ26220evm-001 (evaluation kit of battery monitor).I'd like to calculate the remaining capacity and read the power...
View ArticleForum Post: bqEVSW download
I've got a BQ27425EVM-G2A evaluation module. bqEVSM software is referred to in the manual, but I don't see it on the product page:http://www.ti.com/product/bq27425-g1or on the EVM product...
View ArticleForum Post: TLC5940 Cascading Help
I'm starting to work with the TLC5940 for a little project I have in mind.I'm gathering all the parts I need to start playing with them on a breadboard, however, I'm not entirely sure what I need for...
View ArticleForum Post: BQ20Z75 Remaining Capacity, Remaining time to Empaty and Battery...
Hi AllI have very specific question Regarding BQ20Z75 Battery Management IC.Required Battery Pack Term Volatge is 7V. Which I have set in Term Voltage register.But when I discharged my battery using...
View ArticleForum Post: RE: TPS54426 Output Discharge control function
The TPS54426 is designed to use output capacitance between 22 and 68 uF. that is the recommended range. It is possible to use higher values. I have used as high as 470 uF on some designs. But those...
View Article