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TPS53679: About the correct design of the controller Vin pin
Part Number:TPS53679Hi BU,May I know that the controller Vin pin needs to be in front of the beads or after the beads if I add bead(input inductor) to design. Just like TPS53679, TPS53659,...
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TPS2546: Spec check
Part Number:TPS2546Hi Sirs,Sorry to bother you I find below information from the datasheet of TPS2546.Please help to confirm the max charging current can TPS2546 support?
View ArticleTPS62825: EN pin VIH & VIL values
Part Number:TPS62825Referring to the datasheet (SLVSEF9C), Table 7.5 on Pg.4, the following error is found:VIH(max) = 1.0VVIL(min) = 0.4VThis looks like Min. and Max. values have been mixed up. The...
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TPS54325-Q1: When start up with load without output
Part Number:TPS54325-Q1Hi, My design parameters are as follows: Vin=5V, Vo=1.375V, Io=2A when start up with load(the load is a CPU), no output voltage. but when I cut off load, no load start up...
View ArticleUCC2818: Use current transformer to replace shunt resistor
Part Number:UCC2818Hi,Please refer to UCC2818ADR data sheet ,SLUS577DEquation 26 ,GID(s)=(Vout*Rsense)/(S*Lboost*VP)Where Rsense is a shunt resistor,if I use current transformer to sense current.Do I...
View ArticleTPS92515HV: Reduced for startup time
Part Number:TPS92515HVHello E2E,Our using EVM has about 2.5-msec startup time.Conditions are follows; - Vin is 24V. - LEDs are 5 pieces in series. Vf = 3.05V/piece. - ILED is 500mA.At dumming from...
View ArticleTPS56C215: Question about VREG5
Part Number:TPS56C215Hi Team,1. The operating voltage is from 3.8V, but if Vin is only 3.8V, then how it regular VREG to 4.7V?2. If VREG decrease to around 3.8V(depends on Vin, but higher than UVLO),...
View ArticleBQ24040: BQ24040 Become small charging current when the safety timer out
Part Number:BQ24040Our battery capacity is 1000mA. But we use 20mA for the fast charge. During the CC mode, they have 20mA charge current. We find there have small charge current, 5mA, when the timer...
View ArticleCSD17559Q5: CSD17559Q5 ESD performance
Part Number:CSD17559Q5Hi team, Could you please share me some data about ESD performance of our device? I cannot find it in the datasheet. My customer needs this data to evaluate this device. Thanks.
View ArticleLM5010A-Q1: Temperature
Part Number:LM5010A-Q1Hello,I am after LM5010A-Q0, which is the same part but has higher temperature ranges.Operating conditions are: Input voltage: 24-60 VNominal Voltage: 48 VOutput voltage: 12...
View ArticleBQ40Z60: Current monitoring
Part Number:BQ40Z60Hi all,I work with a BQ40z60 EVM.We use a 4 cells pack @ 3350mAh to provide power to a PC like with DLP projector embedded.So we have 2 main state of working phase for the BQ40z601)...
View ArticleLMZ34002: About External Clock and land pattern
Part Number:LMZ34002Dear all,Would you mind if you ask about LMZ34002?Our customer would like to know answers of questions below.1.According to Datasheet p.20 "12.11 Synchronization (CLK)" ,this device...
View Article0ns to 10ns variable Pulse width generation
Hi,I need to generate pulses with variable pulse width from 0 to 10ns pulse width.Does TI have any product which can do this?If not can you guide me to some circuits which can do this?Thanks,Sai
View ArticleTLC5958: Channel output unused pin what should we do
Part Number:TLC5958HiI am using TLC5958 - 48 channel output driver , application of LED display .In my application, I need to use only 16 channel output driver. While doing schematic for my Display...
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LM74700-Q1: Oring schematics and EVM board
Part Number:LM74700-Q1Dear team,Could you please let me know do we have LM74700-Q1's oring EVM like figure 36 in datasheet? And please help provide the schematics. If no, how to implement oring EVM?My...
View ArticleTPS22965: TPS22965DSGR SGS Report
Part Number:TPS22965How do I need TPS22965DSGR SGS Report to download it on the TI website. Thank you!
View ArticleTPS544B20: TPS544B20 PIN Addr0 and Addr01 The problem of Resistance accuracy.
Part Number:TPS544B20TPS544B20 PIN Addr0 and Addr01 he resistance accuracy of datasheet is 1%, because the company can not use 17.8K/24.4K resistance, so I can only use 5% precision resistance, 17.8...
View ArticleTLV62585: OVP / UVP
Part Number:TLV62585Hi E2E,Did TLV62585 have no OVP/UVP function?How does IC to protect VOUT over/under voltage?Thanks!
View ArticleBQ76PL455A: External power supply for VP, VDIG
Part Number:BQ76PL455AI think we can supply VP voltage from external power supply instead of NPN LDO.In this case, can we use switching regulator for increasing efficiency? or is LDO required? And...
View ArticleBQ76PL455A: GND plane at stack configuration
Part Number:BQ76PL455AOn the datasheet layout example, four or more GND plane is recommended.When we use bq76pl455A 2 stack with 1 board, higher device GND becomes top cell point of lower device.In...
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