Answered

• UC2856: Error Amplifier: OTA

  

  Nikhil Chodankar

  Resolved

  Part Number: UC2856 Tool/software: Hi There, Im modelling the UC2856 for spice simulation, Im working on Error amplifier section in which I required some missing parameters in the datasheet as below: 1.Input Impedance 2.Output impedance 3.Ao…

  • Resolved

  • over 1 year ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum

• UC2856: LTSPICE model

  

  Nikhil Chodankar

  TI Thinks Resolved

  Part Number: UC2856 Other Parts Discussed in Thread: UC1825 , LM5030 , LM25037 Tool/software: Hi, Kindly provide the UC2856 LTSPICE Model required for simulation. Please do the needful. Regards, Nikhil

  • over 1 year ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum

• UC2856-Q1: Space Grade - Variant of this IC

  

  Sweshwaran M

  TI Thinks Resolved

  Part Number: UC2856-Q1 Other Parts Discussed in Thread: UC2856 Tool/software: Hi, I am checking the possibility of using this IC for two switch forward converter. My application requires operating at -55 deg C. Is there any variant of " UC2856 " which…

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

• UC2856-Q1: op-amp Symbol swapped

  

  Nikhil Chodankar

  TI Thinks Resolved

  Part Number: UC2856-Q1 Tool/software: Hi, I was referring this new Q1 version (May 2011) with predecessor one (Oct 2010), Got confused with error amplifier section. I found error ampl symbol might get swapped in latest version of the IC which is in…

  • over 1 year ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum

• UC2856-Q1: Controller for Two switch forward converter controller

  

  Karthik karri

  TI Thinks Resolved

  Part Number: UC2856-Q1 Other Parts Discussed in Thread: UCC27212A-Q1 , UCC2897A Tool/software: Hello Ti Team, I am looking for PWM controller to drive two switch forward converter like shown below picture. Does UC2856-Q1 supports two switch forward…

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

• UC2856-Q1: External pull down of error amp output

  

  Bob Callanan

  Resolved

  Part Number: UC2856-Q1 Other Parts Discussed in Thread: UC3856 , UC2856 I would like to be able to disable the PWM comparator without discharging the soft start capacitor. I would like to implement this by pulling the COMP pin low in the same manner as…

  • Resolved

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

• UC2856-Q1: push pull in open loop

  

  Paul Antunes

  Resolved

  Part Number: UC2856-Q1 Other Parts Discussed in Thread: UC2856 , UCC2808A-2Q1 , UCC2808A-1Q1 Hello, one of my customer would design a push-pull with spec below: Pout=2W Vout=25V Vin=16V +/-3% (=Vcc driver driver push pull) other: support open…

  • Resolved

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

• UC2856-Q1: 300 W DC/DC converter for auxiliary power applications with automotive rating

  

  Suheyl Tr

  Resolved

  Part Number: UC2856-Q1 Other Parts Discussed in Thread: UC2825A-EP , UCC28220-Q1 Hi TI Team, For 110 V_nom ( ±40%) input DC and 24 V (300W) output DC/DC converter WEBENCH suggests only LLC topology with controller ICs not having automotive rating…

  • Resolved

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

• UC2856: UC2856DW

  

  Nelson Canals

  TI Thinks Resolved

  Part Number: UC2856 I need the thermal resistance for UC2856DW. junction-to-board junction-to-case

  • over 6 years ago
  • Power management
  • Power management forum

• UC2856-Q1: CL SS (pin1) current

  

  David Young2

  TI Thinks Resolved

  Part Number: UC2856-Q1 Hi, forum, One of our product uses UC2856QDWRQ1 in a voltage mode configuration. We are looking into the current limit/soft start of this chip. Can anybody tell me what is the source and sink current for pin 1 (current limit adjust…

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

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