TPS786: Lead/Ball Finish
Part Number:TPS786TPS78601DCQR states in the datasheet that the Lead/Ball Finish is CU SN. Every other part that is offered in the DCQ package on the datasheet comes in CU NIPDAU finish. Is this a...
View ArticleClik here to view.
TPS43351-Q1: Could using spread spectrum stop a second TPS43351-Q1 from...
Part Number:TPS43351-Q1Dear TI, (but likely Gordon), In the same circuit used in my previous post, I have two TPS43351-Q1's. One is the master, with its SYNC pin connected to its VREG pin so that...
View ArticleLM5160: lm5160 evm question
Part Number:LM5160hi customer design requirement3W1.Vin=12V~24V(Linear mode)Vout=5V(isolate)2.Vin=12V~24V(Linear mode)Vout=3.3V(isolate)3.Vin=12V~24V(Linear mode)Vout=±15V(isolate)is LM5160 a suitable...
View ArticleClik here to view.
BQ27Z561: EV2400 communication is ok ,but EV2300 not.
Part Number:BQ27Z561Hi, My customer's battery pack could connect to bqstudio by ev2400 but could'nt by ev2300.The ev2300 i2c had be pull-up to 3.3v by a 4.7k resistor and connect to bq27541 is...
View ArticleBQEVSW: Getting error "Failed to load TiGrid from TiGrid.ocx"
Part Number:BQEVSWHi everyone,I have had my IT department load the TI bq evaluation software on my computer and when I try to run the program I get an error stating "Failed to load TiGrid from the...
View ArticleClik here to view.
UCC28064: Critical advantage for low standby power using
Part Number:UCC28064Please let me know about critical advantage in the case of low standby power for UCC28064.About application note slua879 Figure 1~3;①Customer think that most low power consumption...
View ArticleTLC59581: ES-PWM and LOD functions in the LED driver
Part Number:TLC59581Hi,I am using TI TLC59581 LED driver but I am confused about the operation of the ES-PWM in this device. This device has a 16-bit Grayscale control so 65536 GCLK pulses are needed....
View ArticleBQ25898: Voltage rating of capacitor on REGN pin
Part Number:BQ25898Hi,In the page 6 of datasheet, it recommend to use 10V rating capacitor on REGN, but then can you accept to use 6.3V rating capacitor if there system will operate witn only 5V...
View ArticleClik here to view.
TPS63070: TPs63070 wrong output voltage
Part Number:TPS63070HII am using TPS63070 buck-boost regulator and I would like to get 4.7V output at TP12 but I am getting 11.5v which is wrong and don't know why. (Input voltage is around 5.8v, but...
View ArticleClik here to view.
BQ30Z554-R1: Wake up in low cell voltage
Part Number:BQ30Z554-R1Hi, My customer using bq30z55 can't wake up bq30z55 when cell voltage is lower than 2.6v in 2s1p battery. I had measured the PACK pin and top stack cell voltage as below...
View ArticleBQ294504: Customer is requesting TI's part to replace S-8215A/B.
Part Number:BQ294504Hello Team,My customer is requesting TI's part to replace S-8215A and S-8215B series product, I searched TI's website by cross reference and system show me the several parts with...
View ArticleClik here to view.
TPS61253: Pad Layout Question
Part Number:TPS61253Hello,The datasheet for the TPS61253 calls out a paste aperture design that is slightly odd to us. It recommends that it should be square with rounded corners, not just a round...
View ArticleTPS54824: Dead Time ; Efficiency calculation including Bottom FET switching...
Part Number:TPS54824Per Equation 10 at this link: http://www.ti.com/lit/an/slyt664/slyt664.pdf I would like to roughly budget the power lost in the bottom FET body diode in the TPS54824 Just first...
View ArticleLM5071: POE feedback optoisolator fails or disconnected, POE output will...
Part Number:LM5071HiI have a FPGA device that is directly powered from the POE 3.3V output. We are currently using the LM5071 chip. When the feedback optoisolator fails or disconnected, the POE output...
View ArticleBQ40Z50-R1: 400kHz mode
Part Number:BQ40Z50-R1Does BQ40Z50-R1 support 400kHz mode? I set XL(bit 3) in SBS configuration to 1, but failed to communicate with it at 400kHz. Did I miss anything else?
View ArticleClik here to view.
BQ24195: boost issue.
Part Number:BQ24195Hello!We've made a board with power management block based on BQ24195. Here is the circuit:On PMID we have 60uF ceramic + 220 uF electrolyte. VBUS gets powered from 5V source, we...
View ArticleClik here to view.
LM34910C: Using the LM34910 as a negative voltage source.
Part Number:LM34910CI am trying ti use the LM34910 as a negative voltage generator/source. While i had been using the LMR14203 successfully for the same purpose, I need to provide more current so...
View ArticleBQ27750: Technical Reference Manual Update?
Part Number:BQ27750Hello,I have found that other TRM's in the bq27XXX family explicitly describe whether or not factory calibration is needed. bq27546-G1 requires calibration (Appendix A), bq27542-G1...
View ArticleCCS/BQ24160: BQ24160 not charging battery to regulation voltage set in...
Part Number:BQ24160Tool/software: Code Composer StudioI am using the BQ24160 Battery Charger to charge a 3.7 Li polymer battery and I'm not seeing it reach the full voltage set in the Control/Battery...
View ArticleTPS51200: TPS51200 VTT Margining
Part Number:TPS51200Hi,Designing a DDR4 memory interface using TPS51200 for VTT power and reference.A colleague suggested we might want to margin the VTT so we set optimum voltage.Anybody comment if...
View Article