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BQ27542-G1: STATIC_CHEM_CHKSUM / ALL_DF_CHKSUM / STATIC_DF_CHKSUM for BQ27542-G1
Part Number:BQ27542-G1Hello，Sir，There is something confused me，As the picture below，1,what‘s the functions about those CHECKSUM：STATIC_CHEM_CHKSUM / ALL_DF_CHKSUM / STATIC_DF_CHKSUM .2,what data was...
View ArticleTPS562231: Isolated DCDC
Part Number:TPS562231Dear Team,What is the suitable solution for 12Vin to 3.3V/2A with isolation?Only flyback can provide the isolation here? Or we have easier solution here?BrKevin
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LM25141-Q1: How to set FMOD? and, RC network
Part Number:LM25141-Q1Dear,The customer has two questions:1, when set FMOD, what rules can I refer to? ±5%, Does it means Nominal Frequency, or , Voltage Value of DITH Pin? the modulation rate...
View ArticleLED driver
Hi,I am looking for a LED driver to driver BL (3-4 LED in parallel). I have the BL with working voltage of is 3.2V and current drawn from the BL is 30mA. The BL driver should have PWM interface to...
View ArticleBQ33100: 0031
Part Number:BQ33100Hi, I am trying to manage 4 capacitors with a bq33100. Nothing charges when I put power on, even if I'm using the circuit page 54 of the datasheet (not the same charger though)...
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TPS3813: TPS3813K33DBVR
Part Number:TPS3813Hello,I am Akshay Pathak working as an Embedded Hardware Engineer in Teksun Microsys Pvt. Ltd. I am using Watchdog Timer IC part no. TPS3813K33DBVR in one of my application and I...
View ArticleLM3481: Compensation
Part Number:LM3481Hi:The product I designed USES LM3481,COMP Pin as Compensation Pin,Rc= 22.6k, which is not normal resistance. How is the resistance value set?Is there a formula?thank you.BRSunny
View ArticleBQ27010: order information
Part Number:BQ27010Hi Team,i have customer is the old design and continue to order, but the customer is ordering BQ27010DRKRG4,we want to know BQ27010DRKRG4 and BQ27010DRKR is the same?
View ArticleTPS43060: FET matching to TSP43060 DRIVERS for HIGH POWER boost converters....
Part Number:TPS43060Dear Forum, I'm trying to create a synchronous boost converter using the TPS43060 chip.Here is my issue. I have run through Web Bench and (to my surprise after many foiled attempts...
View ArticleTPS7A91: Inrush current
Part Number:TPS7A91Hi ,I am planning to use TPS7a91 in our design. TPS7a91 is used in the design to power the FPGA rail.There are 1000uf decaps in the core rail which appears at the output of LDO...
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SMPS input capacitor and pi filter selection values
Hi There,I have designed power supply based on Ucc28064 and Ucc256301 ic based in TIDA-010015 model. It is 600W power supply and need some input on choosing these filter components. But i want to get...
View ArticleBQ27220: Support -20 degree?
Part Number:BQ27220Hi Expert,Does bq27220 CEDV support -20 degree?If customer cut off voltage Spec is 3.4V, when I am doing the data log testing, should I follow it? Or 3.0V is better? Thanks!
View ArticleTPS7A4501-SP: Junction Temperature Absolute Maximum Rating
Part Number:TPS7A4501-SPIn datasheet SLVSC31D (Revision Aug-2015) in §7.1 the Abs Max Junction Temperature is spec'd as 150°C. In §11.3, it says 125°C, and so does MILSMD5962-12224, Rev.D.Now, 125°C is...
View ArticleTPS544C20: is there any leakage current if VIN and ADD do not apply?
Part Number:TPS544C20Hello experts,I have a question. Is there any leakage current (internal leakage current path) at a following pins if VIN and VDD do not apply and applied a voltage (less than ABS)...
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LM3481: lm3481
Part Number:LM3481HI,I am using LM3481 in a design,where input is 6-11V, and output is 13.5V,but i am facing a issue when i testing it .short circuit protection is not working .when short circuit occur...
View ArticleBQ77915: bq77915
Part Number:BQ77915Hii SirWe are intending to use the bq77915 IC for cell balancing in the battery pack.as mentioned in the datasheet of the bq77915 in the detailed design application page. for 18V...
View ArticleTPS92515HV: PWM frequency and UVLO
Part Number:TPS92515HVHello,we're experimenting an issue with 10KHz PWM signal: if it goes to 0% we are not able to get a good output switching signal any more.The datasheet says...
View ArticleBQ4050: Charging
Part Number:BQ4050Hi,I plan to use bq4050 with the charger bq24105.In the technical reference - SLUUAQ3, in the section 4.4 (page 30), the charging current can be configured.So i dont understand, the...
View ArticleBQ78350-R1: Need of EV2400 for TIDA-00792 , required or not? Can TIDA-00792...
Part Number:BQ78350-R178350 is having capability to drive bq76940 chip using i2c bus? How about balancing algorithm, is it in built in 78350 and how about protections?
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TPS62163: The initial accuracy of TPS62163
Part Number:TPS62163Hi team,I see there is a Initial output voltage accuracy data in the datasheet. I'm not very sure what the data mean here. Is it the accuracy of the internal reference voltage?
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