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  6052478

  • 23 days ago
  • Power management
  • Power management forum

  UCC27714: Bootstrapped High side fets not switching

  TI Thinks Resolved

  Part Number: UCC27714 Hi I have the low side fets switching fine, but the high side ones are not doing much, below is this portion of the schematics: Mosfets are FDP61N20 U8 is the UCC27714 U9 is isolation ISO7730FDWR D26 is standard diode...
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  Howard Zou

  • 2 months ago
  • Power management
  • Power management forum

  UCC27714: level shift inquiry

  • Resolved

  Part Number: UCC27714 Hi, in the internal circuit for HI to HO level shift. It's two Vss/HS level
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  Howard Zou

  • 2 months ago
  • Power management
  • Power management forum

  UCC27714: high side pulse missing from HI to HO

  TI Thinks Resolved

  Part Number: UCC27714 Hi, my customer test UCC27714 and IR2186 in the same half bridge circuit, and only our device face high side pulse missing problem. The schematic is as below: VDD=12V. Rbias=5.1ohm, Cvdd=10uF, Rboot=5.1ohm, Cboot=1uF, Rhi...
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  Dylan Bartlett1

  • 2 months ago
  • Power management
  • Power management forum

  UCC27714: Enable pin not working correctly under simulation

  • Resolved

  Part Number: UCC27714 Hi, I am working with the SPICE model for the UCC27714 gate driver
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  Hide

  • 2 months ago
  • Power management
  • Power management forum

  UCC27714: About 4A Peak Output

  • Resolved

  Part Number: UCC27714 Hi Team, I understand that “4A peak Output ” is HO and LO total current. (I
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  Howard Zou

  • 2 months ago
  • Power management
  • Power management forum

  UCC27714: HB-HS voltage drops when UCC27714 top temperature reaches 70C

  TI Thinks Resolved

  Part Number: UCC27714 Hi, my customer's schematic is as below(EN floating). We find that when UCC27714's top temperature reaches 70C, the HB-HS voltage will drop to below 7V, causing UCC27714 to restart repeatedly. The waveforms are as below...
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  Howard Zou

  • 3 months ago
  • Power management
  • Power management forum

  UCC27714: does this device has over temperature protection?

  • Resolved

  Part Number: UCC27714 Hi, my customer is using this device to drive MOSFETs. They observed
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  abhishek moghe

  • 4 months ago
  • Power management
  • Power management forum

  RE: UCC27714: Ringing at HO Pin

  Hi Richard, It looks like that the ringing we observed on HO-HS was indeed a probe measurement issue. i used battery operated Scope with high bandwidth to measure the same waveform and it looks just fine. No need to use Ferrite Beads. We observed...
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  JEET PANCHAL

  • 5 months ago
  • Power management
  • Power management forum

  UCC27714: Voltage spikes in output and input driver pulses at 300V

  TI Thinks Resolved

  Part Number: UCC27714 Hello, I am designing an inverter board for voltage above 350V. I am facing a driver related issue at 300 V DC link. There are voltage spikes in input and output of the driver. But at the output of microcontroller there are no...
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  Howard Zou

  • 7 months ago
  • Power management
  • Power management forum

  UCC27714: Can we power UCC27714 HB to HS with dedicated power supply?

  • Resolved

  Part Number: UCC27714 Hi, in our datasheet typical applications, bootstrap circuit is used to power

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