Forum Post: Testing BAT_LOW/BAT_GD of bq27510-g2
Hi,I have to program and test our PCB with bq2710. My software programs it with a battery profile data, which seems to be done all right as our application software can display different charge levels...
View ArticleForum Post: RE: TPS5450 Quiescent Current
Something in the 10's of mV sounds about right, so 17 mV should be very close to what I would expect. They specifiy the quiescent current as non-switching, because that is the quiescent current of the...
View ArticleForum Post: BAT_LOW/ of bq27510
Hi,I have to program and test our PCB with bq2710. My software programs it with a battery profile data, which seems to be done all right as our application software can display different charge levels...
View ArticleForum Post: RE: TSP5420 Start-up problem low Vin
The BOOT cap does not really affect that. What you need a a device with adjustable slow start. For only 30 mA output yo may be able to get a way with a non adjustable slow start part such as TPS54062...
View ArticleForum Post: RE: Powering TMS320F2811 core from TLV70719p
Hello,The LDO should be able to supply 220mA however with such a high load PSRR and transients may degrade. Also long term relaibility of the part cannot be guaranteed if we drive it harder than what...
View ArticleForum Post: RE: BQ77PL900 - One of the ten differential cell voltage outputs...
The sample and hold circuits of figure 7 and 17 are pictured similarly, but are independent.1. The intent would be a pair of switches closes to sample the voltage of the cell onto the capacitor, then...
View ArticleForum Post: RE: tlc 5971 typical app circuit
Hello Mahmut, I'm sorry that my explanation was not enough. Yes, I wanted to say that the different voltage between N'th TLC5971 GND pin and N+1'th TLC5971 GND pin should be less than 0.3V because...
View ArticleForum Post: RE: LMZ13608 Output is not as what I want !
Dear Juan: Thanks a lot for your prompt response. I've checked the datasheet that the Rev.F Vfb=0.795 but Rev.e Vfb=0.12. OUTPUT VOLTAGE SELECTION Output voltage is determined by a divider of two...
View ArticleForum Post: RE: Open Cell fault after assembly
CHGST 'high' wakes the device. Fault recovery is summarized in the datasheet table 2. Open wire as you found and SCC require CHGST to go low to recover.
View ArticleForum Post: ucd3138 source code
HelloCan I have source code for UCD3138CC64EVM-030(LAB)? My E-mail: liangtufu@gmail.com or : liangtufu_scut@163.comthanks
View ArticleForum Post: RE: BQ77910A recovery from OC (Over Current) and SCD (Short...
Hi Ran,Your evaluation software screen capture shows some differences between the registers and the EEPROM values. It appears some values were changed but not written to EEPROM. The part operates from...
View ArticleForum Post: RE: ULPI connection with TPX65951
Hi Chang,I'm also using DM3730 with TPS65951 and facing similar issue!####### FAIL to read ULPI Reg, Control = 0x5Attempt Recovery Procedure 1Assign ULPI signals to GPIORestore ULPI SignalsDid you...
View ArticleForum Post: RE: bq24163 cannot detect usb charger
Does detection work if the bq24163 are not connected to TPS65951?
View ArticleForum Post: RE: bq2057T, bq2057W / recommend for new design?
Hi Jeff-san,Thank you for your quick response. I'll recommend customer these devices.Best Regards,Sonoki
View ArticleForum Post: RE: TPS23750 NOISE PROBLEMS
With some further investigation the customer found that the BOM error was on their end. Sorry for the confusion. The shunt reference was switched from a TLV431 (1.24V) to a TL431 (2.495V) at some...
View ArticleForum Post: bq34Z100 interface with Digital Temperature Sensor and Disabled...
Hi,is there a way to "write" the temperature in the bq34Z100, from the hosting microcontroller (assuming a digital sensor)?If not, could you please inform me about the circuit inside the bq34z100 that...
View ArticleForum Post: Transition current for the TL431
In the data sheet for the TL431 (SLVS543M) figures 4 and 6 show the configuration for measuring Ika versus Vka for the on and off conditions.Is there any way to determine what this curve might look...
View ArticleForum Post: LM317 used as a Constant Current Source
P/N: '3' Terminal Adjustable Regulator: LM317 Attn:- Application Specialist 1) Is it recomended to drive the Input of a LM317 (used in a configuration; so as to emulate a constant current source) at a...
View ArticleForum Post: RE: Power Supply Design
Respected Vincenzo,i get your points it will really help me to take decisions while designing,i have designed circuit using tps55340, in that i want to use its internal switch and used a flyback...
View ArticleForum Post: RE: LM25056 for low current measurement on Beagle Bone Black?
See LM25056 Electrical Characteristics table, Telemetry section.
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