• TPS25940-Q1: e-Fuse not working

  

  Kiran Kumar

  TI Thinks Resolved

  Part Number: TPS25940-Q1 Other Parts Discussed in Thread: LM76202-Q1 Hi, Our device is failing the Pulse 2a test with Us=+112V, TVS diode across the input is SMCJE15AH. The e-Fuse is Output Voltage is 0V but IC is not damaged physically nor short circuited…

  • over 1 year ago
  • Power management
  • Power management forum

• TPS25940-Q1: Does it have the safety documents?

  

  fen ming Yang

  TI Thinks Resolved

  Part Number: TPS25940-Q1 Hi Does the TPS25940-Q1 have the safety documents? I would like to know the FIT rate and the Failure Mode Distribution. Thanks! Chris

  • over 1 year ago
  • Power management
  • Power management forum

• TPS25940-Q1: Component failing/fusing, there is no Output

  

  ANISH MYLARI

  TI Thinks Resolved

  Part Number: TPS25940-Q1 As we used this component in one of our designs. I want to know, at what conditions this E-fuse will fail. As the Input voltage is 13.6V nominal and current 2A peak. Please check the Image attached for your reference. After few…

  • over 1 year ago
  • Power management
  • Power management forum

• TPS25940-Q1: How do I ask for Load at start-up?

  

  minoru.takeuchi

  TI Thinks Resolved

  Part Number: TPS25940-Q1 I need to enter Load at start-up in cell D11 of TPS2594x-Calculation Sheet V1p0.xlsx. How can I find this?

  • over 1 year ago
  • Power management
  • Power management forum

• TPS25940-Q1: Multiplexing Power Supplies - eFuse Reverse Current issue

  

  Yassine Damoh

  Part Number: TPS25940-Q1 Other Parts Discussed in Thread: TPS25947 Hello all, I'm using two TPS25940-Q1 in the below matter to switch between two power supplies. It seems that when both input are present at the same time, then one of them is disconnected…

  • over 1 year ago
  • Power management
  • Power management forum

• TPS25940: Temperature rise of super capacitor charger

  

  Nandika Sirinuwan

  Part Number: TPS25940 Dear All, I successfully manage to make super capacitor charger using TPS25940S. I used only current limiting mode simply using external RILIM resistor. TPS25940S get heated when charging the capacitor due to the current stress as…

  • over 1 year ago
  • Power management
  • Power management forum
Answered

• TPS25940-Q1: Fault pull low during startup

  

  JJ He

  Resolved

  Part Number: TPS25940-Q1 Other Parts Discussed in Thread: TPS25940 Hi TI team. During stratup, we have observed that the falut pin is pulled low and then pulled high. For reference, please find the the schematic of TPS25940 below: And the startup waveform…

  • Resolved

  • over 1 year ago
  • Power management
  • Power management forum

• TPS25940-Q1: behaviour of eFUSE during GND disconnection

  

  Bart

  TI Thinks Resolved

  Part Number: TPS25940-Q1 We have a question regarding TPS25940-Q1 eFUSE latching version. We have a normal slow-blow fuse between the eFUSE GND and global GND to disable the eFUSE in case of any internal short. However, we are experiencing an issue - when…

  • over 1 year ago
  • Power management
  • Power management forum
Answered

• TPS25940-Q1: EN pin 100Hz PWM control

  

  Ryan Wang

  Resolved

  Part Number: TPS25940-Q1 Dear expert, Customer want to use 100Hz (50% duty cycle ) PWM signal to control EN pin. Is it OK? C(dVdT) = 0.8 nF tON(dly)+tOFF(dly) =220+2=222 uS which is far below 100Hz (10ms). It should be OK, right?

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum

• TPS25940-Q1: Application questions

  

  Lanxi Li

  TI Thinks Resolved

  Part Number: TPS25940-Q1 Hello team, Aimed at one usage that OVP connect to 12V battery and VIN connect to 3V back up battery. Main usage: 1. 12V cut-off, the Out will output 3V. 2. 12V is on, OUT don't output 3V. Questions: 1. while OVP=12V,VIN=3V…

  • over 2 years ago
  • Power management
  • Power management forum

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