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TPS61089: TPS61089 Vout=12V, Vin=0V, how it work
Part Number:TPS61089Dear TI: If TPS61089 Vout=12V, and Vin=0V, If the 12V of Vout will reverse to Vin? Below is a screenshot of the TPS61089 datasheet, dost the MOS body diode will blocking...
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BQ34110EVM-796: BQ34110EVM-796
Part Number:BQ34110EVM-796Hello, we bougth an evaluation board BQ34110EVM-796, but we cannot connect it via I2C using the EV2400, or have compatibilities issues with BQSTUDIO. Please need help to...
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BQ24780S: Turbo boost mode battery discharge current
Part Number:BQ24780SHi ExpertMy NB ODM customer have a adapter spec that need turbo boost work in100uS otherwise will trigger Adapter OCP.( adapter OCP 6A for more then 100uS )We use 5A system power...
View ArticleTLV61046A: Current Limit vs Temperature data
Part Number:TLV61046AHello.I have a question about TLV 61046A.Datasheet P7Figure 8. Current Limit vs Temperature.Conditions: VIN = 3.6 V, VOUT = 12 VIt is a graph of this condition.Conditions: VIN =...
View ArticleLMZ21701: Enter in oscillation on new production boards, but was ok on 98% of...
Part Number:LMZ21701What could keep the switcher in oscillation? Vin 12V steady, output 5V5 with enable pin used. Current around 500mA max normally.When enabled, PG oscillate and also Vout.If the...
View ArticleTPS54560: Current sharing with TPS54560
Part Number:TPS54560Hi there,I wanted to check if there is a possible way to parallel 2 TPS5450 to double the total current available to the load?I've had a read of two similar post that says these...
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LM3478: Low frequency ripple on the DCDC output
Part Number:LM3478Hi,I have a prototype circuit board with a boost converter utilizing the LM3478 switching regulator. The output voltage on the DCDC has a low frequency ripple on it when no load is...
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BQ77915: Battery protection for x2 high current 6S LiPo batteries in parallel
Part Number:BQ77915Hi,I'm from the University of Florida. I have a robot that has 8 thrusters, a computer, and several sensors, cameras, and other small actuators. We have been running with a 48V rail...
View ArticleBQ78Z100: Customer want to upgrade firmware to v0.05
Part Number:BQ78Z100Hi , Customer got older version chip, the hardware version is 0x0A and firmware version is 0x04.Their golden sample was based on hardware version 0xa2 and firmware version...
View ArticleUCD9090A: Does anybody have UCD9090a (VQFN) BSDL file?
Part Number:UCD9090ADoes anybody have UCD9090a (VQFN) BSDL file?I am looking for, but under the UCD9090a tools and software folder there is the UCD90160bsdl file,which is a different chip and cannot be...
View ArticleLMR14006: alternative for sensor application
Part Number:LMR14006Hello team,my customer has been using the LMR14006 and wants to add another switching to his sensor board. The supply rails are 18V-32V (nominal voltage is 24V); output current is...
View ArticleTLC5955: How to use GSCLK input?
Part Number:TLC5955Hello, this is my first post!I'm using 11 chained TLC5955 (to power my 176 RGB leds) controlled by a STM32F7, and I encounter difficulties to make the driver working.For now I can...
View ArticleLinux/L293D: Voltage Drop at Outputs
Part Number:L293DTool/software: LinuxHi,I'm a French student working on an RC autonomous car project. The first part of the project consists in controlling two DC motors using Pulse With Modulation. I...
View ArticleWEBENCH® Tools/LM5155-Q1: Component Selection for CS Pin
Part Number:LM5155-Q1Tool/software: WEBENCH® Design ToolsI used WEBENCH to generate a design for the LM5155 where I am boosting 24VDC up to 100VDC with 0.2A output current. WEBENCH did the design and...
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TPS54020: Tracking design questions
Part Number:TPS54020Dear TI Support, Attached is a schematic drawing showing three (3) power supplies, each designed around the TPS54020 switching regulator.The design team no longer exists and I’m...
View ArticleLMG3410R050: Parallel operation - inductors?
Part Number:LMG3410R050We are investigating the possibility of paralleling two LMG3410R050 half-bridges for a high-power inverter design to exceed 12A. The datasheet mentions using "small decoupling...
View ArticleBQ24171: FCC is lower than predicted & RemCap stopped counting.
Part Number:BQ24171Posting for my customer:I performed my first charge on a pack with the learned SREC loaded. I have attached the log data and chart. I have also attached the learned SREC. and GG...
View ArticleTLC5958: Is there independent brightness control
Part Number:TLC5958Hello team,Hope you are doing well. When you get a chance please see below customer questions:Is there independent brightness control of each individual output pin or are OUTG, OUTR,...
View ArticleTPS62122: Input Capacitor Selection for Long Distance Power Source
Part Number:TPS62122Hello Forum,We are designing a 12V to 3.3V (Buck + LDO) Power Supply for Bluetooth MESH network. We are using TPS62122 to step down 12V to 3.6V and filtering the output ripple...
View ArticleBQ40Z50: FCC is lower than predicted & RemCap stopped counting.
Part Number:BQ40Z50Posting for my customer:I performed my first charge on a pack with the learned SREC loaded. I have attached the log data and chart. The cells are 6000mAh and my learned FCC was...
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