TPS92410: Can TPS92410 drive 20~25pcs of white LED from AC100V without TPS92411?
Part Number:TPS92410 Hello guys, One of my customer is considering using TPS92410 for their next products. They want to drive 20~25pcs of white LED from AC100V with 20~30 mA, small parts count and no...
View ArticleCSD18543Q3A: CSD18543Q3A package dimension
Part Number:CSD18543Q3AHi Team,My customer has question on the detail dimension for CSD18543Q3A. Please see the powerpoint attached for the questions.Best regards,Andy Chu(Please visit the site to view...
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BQ76930: CHG Mosfet Driver for BQ76930/76940
Part Number:BQ76930 Hello.1.I have a question about the CHG mosfet(Q1) drive,in the figure 9 we can see that the chg FET drive circuit take "GND" reference for grante,the chg output connect to the...
View ArticleTPS51285B: Request Schematic review.
Part Number:TPS51285BHi team.My customer requested schematic review.Schematic of customer is confidential.Please let me know contact email.I will share the schematic to the associated engineer.Thank you.
View ArticleTPS65094: Request Schematic review.
Part Number:TPS65094Hi team.My customer requested schematic review.Schematic of customer is confidential.Please let me know contact email.I will share the schematic to the associated engineer.Thank you.
View ArticleBQ25898: SYS_MIN setting
Part Number:BQ25898Hello,Our customer plans to decrease SYS_MIN value to see the battery voltage in wide range.Would you let us know if bq25898 function is limited by decreased SYS_MIN value ?best...
View ArticleLM5176-Q1: High Power Consumption with no load
Part Number:LM5176-Q1Hello there.We have built a buck-boost converter with LM5176 based on the evaluation board designs, with 12V and 12A output from 10V-24V inputrange. The circuit worked as expected...
View ArticleBQ24773: Schematic review.
Part Number:BQ24773HIMy current customer is trying to develop 4S4P Lithium Battery Charger with BQ24773.The circuit configuration was based on EVM.I have the following questions in the following...
View ArticleLMZ31530: Behaviour when output current greater than 30A but less than...
Part Number:LMZ31530This part is rated for an output current from 0 to 30A. It has an internal current limit threshold of 40A (typical). We would like to find out the behaviour of this device between...
View ArticleTPS65381A-Q1: “The device may not be able to respond to MCU SPI communication...
Part Number:TPS65381A-Q1If the device responds to MCU SPI during a BIST, is the readback data trustable or not? Thanks.
View ArticleBMS for 13s battery pack
I want to make a 13s12p (1.5 kWh pack) for Electric vehicle application. The cell chemistry is Li-NMC. So I need a BMS that has all basic OCP,OVP,OTP protections and passive/active cell balancing. I...
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LP5907: Output 1.6MHz 15mV ripple when use a 1uF 0201 cap
Part Number:LP5907Hi team,Customer change 0402 cap to a same value 0201 cap, and find 1.6MHz 15mV ripple. He added a 0.22uF cap in parallel and this ripple disappear. Datasheet require output capacitor...
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LMR33620: Short circuit protection function of LMR33620 is abnormal
Part Number:LMR33620Abnormal short circuit protection function of LMR33620;The inductance is 4A 33uH;Input 12V, output 5V, when 5V short circuit occurs, the chip burns down, output 12V...
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BQ78350: The capacity information of battery are not expected
Part Number:BQ78350Dear E2E,I found that the value of capacity register are not expected.At first, the voltage I get is 0x6ff2 = 28658mV which is almost in full charge and the current is 0x1dc =...
View ArticleUCC2897A: SPICE model
Part Number:UCC2897AHi,My customer is looking UCC2897A spice model for LTSPICE. There is spice model in web but user cannot understand it could be useful for LTSPICE. Do you have spice model for...
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ISO5452: Delay time Problem during OCP
Part Number:ISO5452There is DZD215 and DD216 on the circuit of the ISO5452 as recommanded. We know there are some parasitical capacitance inside the Zener and Diode. Can these affect the response time...
View ArticleBQ27542-G1: BQ27542-G1 DEVICE_TYPE Control Subcommands
Part Number:BQ27542-G1Dear Engineers,There is a question of BQ27542-GI DEVICE_TYPE Control Subcommands. I want to read "device_type", according to the data table description, first write 0x0000 to...
View ArticleLM1117: Stability of fixed LDO LM1117MPX-5.0
Part Number:LM1117Hello,I use LM117MPX-5.0 in following conditions:- Input cap is MLCC 47uF- Output cap is MLCC 47 uF- Load current is 200 mA- Vin is 6.5V- Vout is 5V (fixed LDO)The ESR graph for...
View ArticleTUSB1064RNQEVM: TUSB1064 for HDMI application
Part Number:TUSB1064RNQEVMHi Sir,Our customer want to design the TYPE C to HDMI dongle,The TUSB1064RNQ EVM can be TYPE C to DP, If DP connector jump to HDMI this EVM support TYPEC to HDMI? or need...
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LM5017: How to get isolated output voltage with 600mA output current?
Part Number:LM5017Hi, I have a 48 V dc supply and need to get 3.3 V,5 V out of it. So i decided to use 2 * LM5017 regulator, one for every voltage level. According to your user's guide...
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