• MC33063A: protection failure

  

  Gary Zeng

  Part Number: MC33063A Tool/software: Hi team, My customer is using MC33063 for boost. Q1: When they convert 5V to 12V and there is a output short issue , they use 165mohm shunt resistor, voltage on shunt resistor is 970mV(2.9A), but there is no OC…

  • 7 days ago
  • Power management
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• MC33063A: Abnormal assistance

  

  GARETH OU

  TI Thinks Resolved

  Part Number: MC33063A Tool/software: Hi MC33063A #Obviously, The voltage control function only works as intended (Oscillator output control), ensuring each oscillation completes a full cycle. #Some ICs may experience abnormal CT oscillation cycles…

  • 1 month ago
  • Power management
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Answered

• MC33063A: MC33063A Overcurrent protect issue

  

  kevin hsu

  Resolved

  Part Number: MC33063A Tool/software: Dear TI expert, We have a voltage inverting concerter design with MC33063A as show in below. The Vin is +12V and desire Vout is -12V. We would like to know what is the ocercurrent protect value or how to set it…

  • Resolved

  • over 1 year ago
  • Power management
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• MC33063A: Voltage-Inverting Iout?

  

  kwon

  TI Thinks Resolved

  Part Number: MC33063A Tool/software: Hi. I am using a MC33063A to input VIN=12V or 24V and VOUT=-15V. In the DATASHEET title it says 1.5A PEAK and in 9.2.1 Voltage-Inverting Converter Application it says the output is 100mA. 1. What is IOUT…

  • 2 months ago
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• MC33063A: Buck converter calculator

  

  Ayyanar Raja

  TI Thinks Resolved

  Part Number: MC33063A Tool/software: I have found Buck converter calculator excel sheet in previous thread of forum. But it seems like having wrong formula. Can anyone look and fix it?

  • 2 months ago
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Answered

• MC33063A: Buck Converter Design Values

  

  Ayyanar Raja

  Resolved

  Part Number: MC33063A Tool/software: Hi Forum Members, I'm trying to match the Buck converter design values through the Calculator from formula given in Datasheet. From this calculation I'm trying to find the Frequency behind this CT & L. Considering…

  • Resolved

  • 2 months ago
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Answered

• MC33063A: MC33063A　Discontinuous mode and continuous mode

  

  nagata_taizo

  Resolved

  Part Number: MC33063A Tool/software: I am using MC33063A as a boost circuit. I would like to clarify the conditions under which switching falls into discontinuous mode. Please tell me the conditions inside the IC and the conditions of the external components…

  • Resolved

  • over 1 year ago
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• MC33063A: pin8 is left floating

  

  Lillian Liu(SH)

  TI Thinks Resolved

  Part Number: MC33063A Tool/software: Hi team， I found that this MC33063ADRJR can replace Onsemi NCP3063BMNTXG, but Onsemi's pin 8 is NC. W ill it affect the MC33063A work if pin8 is left floating? Thanks Lillian

  • 6 months ago
  • Power management
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Answered

• MC33063A: Feed Forward Resistor

  

  Jayal Pansuriya

  Resolved

  Part Number: MC33063A Tool/software: Hi, I would like to add feed forward resistor(R5 shown below) to play with frequency and on/off time so just wondering if feed forward resistor is safe to use for MC33063A? Kind Regards, Jayal

  • Resolved

  • 7 months ago
  • Power management
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• MC33063A: MC33063A related issues

  

  jeno.zhang

  TI Thinks Resolved

  Part Number: MC33063A Other Parts Discussed in Thread: TPS40210 , LM5155 Hello， 1. Could you please help analyze if there are any issues with the following schematic diagram? TI is a transformer, or do you have any good suggestions to provide？ 2…

  • over 1 year ago
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