Answered

• UC1825A-SP: UC1825A-SP

  

  Jason Nguyen84

  Resolved

  Part Number: UC1825A-SP Hi, What is the logic high voltage of OUTA /OUTB related to VCC. Any Min / Max range included in the spec ? Best Regards Jason

  • Resolved

  • over 5 years ago
  • Power management
  • Power management forum
Answered

• UC1825A-SP: UC1825A-SP Under Voltage Lock Out threshold overtemrpature

  

  Jason Nguyen84

  Resolved

  Part Number: UC1825A-SP Hello, Question about the UVLO threshold for the UC1825A-SP. The spec is about 9.2V nominal. What is the coefficient of this threshold over temperature ? Is it increase or decrease with Hot temperature ? Best Regards, Jason N…

  • Resolved

  • over 5 years ago
  • Power management
  • Power management forum
Answered

• UC1825A: UC1825A

  

  Jason Nguyen84

  Resolved

  Part Number: UC1825A Hi TI Support, I am looking for more detail information regarding the UC1825A (5962-8768012V2A) Error Amplifier parameters variation (Vio, Iio, Ibias). 1) Input offset voltage is listed as 2mV nominal and 10mV max. Is this variation…

  • Resolved

  • over 5 years ago
  • Power management
  • Power management forum

• UC1825A: Compatibility issue with UC2825DW and UC2825AMDWEP

  

  bhanu prakash2

  Part Number: UC1825A Other Parts Discussed in Thread: UC2825 , UC3842 , UCC28C42 , LM25037 , UCC28250 , UCC28251 , UC2825A Designed a DC-DC converter by using UC2825DW Controller. With this controller met all the electrical parmeters and tested 3 boards. After…

  • over 5 years ago
  • Power management
  • Power management forum

• UC1825A-SP: Variation in High-level output voltage (Voh) and Low-level output voltage (Vol) with temperature

  

  Jonathan Geronga

  TI Thinks Resolved

  Part Number: UC1825A-SP Hi Team, We have a customer inquiry on how much Voh and Vol vary with temperature to help calculate radiation end points. Please let us know if you have other questions with the customer. Thanks! Jonathan

  • over 4 years ago
  • Power management
  • Power management forum
Answered

• UC1825A-SP: UC1825A-SP 1.25V internal voltage

  

  Jason Nguyen84

  Resolved

  Part Number: UC1825A-SP I am looking for the tolerance variations (initial tolerance , temperature, aging, radiation) of the 1.25 V internal which connects to the RAMP pin. Beside the 1.25V could impact the current limit, is there any internal parameters…

  • Resolved

  • over 6 years ago
  • Space & High Reliability (Read Only)
  • Space & High Reliability Forum (Read Only)

• UC1825A: UC1825A

  

  Jason Nguyen50

  TI Thinks Resolved

  Part Number: UC1825A Other Parts Discussed in Thread: UC1825 , Hello, I am looking for the actual oscillation frequency curve over temperature for the PWM UC1825 Thanks

  • over 7 years ago
  • Space & High Reliability (Read Only)
  • Space & High Reliability Forum (Read Only)

• UC1825A: Current limit threshold voltage question

  

  David Porter11

  TI Thinks Resolved

  Part Number: UC1825A Current limit threshold voltage is spec'd at .95 to 1.05 volts. I am consistently seeing ~ .88X volts, any idea why?? I am using an output hard off as the threshold.

  • over 6 years ago
  • Space & High Reliability (Read Only)
  • Space & High Reliability Forum (Read Only)

• RE: UC1825: Datasheet and App Note for UC1825BJ

  

  H2

  Hi Hong, thank you for sharing the resource. What are the difference between the UC1825, UC1825A, and UC1825B? The datasheet you share doesn't indicate technical data for the UC1825B but UC1825A. Does UC1825B has the LEB feature or frequency/deadtime…

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

• UC1825A: Please refer to description

  

  Bob Aivati28

  Part Number: UC1825A Other Parts Discussed in Thread: TL431 , UC1825 DC DC converter-- interleaved fly back converter: Vin= 28-23v Vout= 5v (Master output @17A) Two 75W flyback interleaved and working 180 degree out of phase using UC1825A. Feed back loop…

  • over 7 years ago
  • Space & High Reliability (Read Only)
  • Space & High Reliability Forum (Read Only)

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