LM25119: SW pin absolute Maximun ratings
Part Number:LM25119Hi team,as my customer use LM25119. they want to ask, if the circuit input power supply is 38V, then the SW pin voltage would be 38V + 3V=41V(caused by DV/Dt), the customer already...
View ArticleBQ24210: Power path circuit options and consequence
Part Number:BQ24210Hi,(6V/500mA solar panel)In a lot of power path I saw, there is a P-MOSFET on the battery line with the gate connected to Vin followed by a diode.1) Is it possible to use a N-MOSFET...
View ArticleUCC28634: UCC28634 never got into the double power zone
Part Number:UCC28634The working region of UCC28634 is divided into five regions, in which the switching frequency and the voltage Vcs at both ends of the sampling resistance also have mutual...
View ArticleTPS548B22: check if loop is stable
Part Number:TPS548B22Hi，Please kindly help check if loop is stable. TPS548B22. 330nH, Cout=2x 330uf ( ESR=6mohm)+ 2x 22uf ceramic caps, Iout=20A. Thanks.
View ArticleUCC28063A: Internal Connection of CS (pin 10)
Part Number:UCC28063ADear Team,our customer is planning to use the UCC28063A.We got the question if CS / input @ pin 10 is used for something else than the OC comparator that is shown in the block...
View ArticleBQ34110: Reference design rarely discharged battery (power backup)
Part Number:BQ34110Hi There,we're working on a design that will have a primary power supply and uses a Li-Ion/LiPo battery to compensate for very occasional power drops. We want our products to be able...
View ArticleUCC27211A: what's the difference of UCC27211A and UCC27211?
Part Number:UCC27211AHiwhat's the difference of UCC27211A and UCC27211?thanks.
View ArticleBQ78350-R1: capacity learning
Part Number:BQ78350-R1Hello TI Experts,I am using two BQ76930 and one BQ78350 for my 20s project,And I'd like to know how to do capacity learning I have referred to the document"Simple Guide to CEDV...
View ArticleLP5030: Question regarding initialization should something go wrong on IIC bus
Part Number:LP5030I have a customer that is looking at an architecture where there are two boards, a master and a slave. The master has a microprocessor and one LP5030. The slave has just the LP5030....
View ArticleUCC28250: ILIM and CS inputs
Part Number:UCC28250Hi,The application circuit in the datasheet shows an implementation of a voltage mode control converter. If I want to make a current mode converter controlled from the primary side,...
View ArticleClik here to view.
LM2733: Large output ripple when large output C connected
Part Number:LM2733The converter runs without load at normal operation (load are single pulses). When I connect a 680 uF Electrolyt-C at the output, the output begins to oscillate with ca. 4 V / 2 Hz as...
View ArticleClik here to view.
LM46001: Total quiescent current during operation at no load
Part Number:LM46001Hello, We’re using the LM46001 in an application and were reviewing the quiescent current spec more closely.There is an 85uA_typ (140uA max) specification for Vbias...
View ArticleTPS549B22: TPS549B22EVM-847 PCB Gerbers for review
Part Number:TPS549B22Hi. We are considering the use of the TPS549B22 step down converter and have sourced the TPS549B22EVM-847 module. Now we wish to customize to our needs. May we receive the PCB...
View ArticleClik here to view.
LP3470: RESET_N line goes to 1.4V (expected < 0.4V) when VCC > 0.5V
Part Number:LP3470We are facing an issue on some systems using the LP3470M5-2.63/NOPB; the RESET_N output line goes to 1.4V instead of going below 0.4V when VCC is around 0.8V. Is there something wrong...
View ArticleClik here to view.
LMG1020: LGM1020 EVM EPC2019 GND connection question
Part Number:LMG1020Hi team,My customer is evaluating our LMG1020. In the EVM schematic we noticed that the GND and PGND is connected as below picture in EPC2019. So I just want to check with you why...
View ArticleBQ34110: delayed ACK when charging battery
Part Number:BQ34110My customer is observing a delay for receiving ACK over I2C after an address and/or command is sent to BQ34110.Most of the times the ACK comes after 300 us, which is not a problem,...
View ArticleBQ25570: EVM availability - Europe
Part Number:BQ25570Hi Team,One of my customers plans to use the BQ25570. I placed an order for the EVM, which was canceled with the explanation below:The EVM does not meet with CE compliance EU...
View ArticleClik here to view.
LM9061: LM9061 as a Charger OVP.
Part Number:LM9061Hi all,my requirement is to use an OVP circuit, to prevent from the customer to insert the wrong charger.I was planning to use the LM9061 together with a battery pack (with BQ77905...
View ArticleBQ25713: SCAP charging behaviour
Part Number:BQ25713I like to charge a series of 8 10F capacitors within less than 10 seconds.The Application Report SLUA913 for the similar charge controller BQ25703A describes the charging behaviour...
View ArticleBQ27441EVM-G1A: GPC + BATPAKMKII
Part Number:BQ27441EVM-G1AHi,I'm looking to obtaining the charge / relax / discharge / relax testing as described in the Simple Guide to Chemical ID Selection Tool (GPC) (SLVA725) in order to get a...
View Article