Answered

• LM27222: LEN High Side FET

  

  Mark Ackerson

  Resolved

  Part Number: LM27222 The LM27222 LEN pin disables turn on of the low side FET. Is the high side FET drive still enabled and controlled by the PWM input? Operation is not explicitly stated in the data sheet. Thanks, Mark

  • Resolved

  • 1 month ago
  • Power management
  • Power management forum
Answered

• LM27222: LM27212 different MOSFETs

  

  user6432576

  Resolved

  Part Number: LM27222 I want to use driver LM27222 for a bidirectional boost converter control. I am checking the Application Example in the datasheet and I see that the high-side and the low-side recommended MOSFETs are both N-channel but different in…

  • Resolved

  • 5 months ago
  • Power management
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• LM27222: Problems driving a DAB

  

  John Sullivan3

  TI Thinks Resolved

  Part Number: LM27222 Hello, I'm having some troubles with the LM27222 while driving a dual active bridge Switching frequency: 250kHz Input Voltage: 20V Output Voltage: 20V Output current: up to 5A (There are actually 4 LM27222 for driving the 8 switches…

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

• LM27222: Max Duty Cycle

  

  Naizeng Wang

  TI Thinks Resolved

  Part Number: LM27222 Other Parts Discussed in Thread: UCC27282 Hi team, What's the max duty cycle of LM27222? If the duty cycle is too large, there may be problems with the bootstrap circuit. Best regards, Nison

  • over 1 year ago
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• TINA/Spice/LM27222: lm27222 tina ti

  

  Jorge Luis Velasco Iza

  TI Thinks Resolved

  Part Number: LM27222 Other Parts Discussed in Thread: TINA-TI , , TPS28225 Tool/software: TINA-TI or Spice Models Please, I need a TINA-TI model of LM27222. Jorge.

  • over 2 years ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum
Answered

• LM27222: Use High side drive only

  

  Hide

  Resolved

  Part Number: LM27222 Other Parts Discussed in Thread: UCC27222 , TPS28225 , UCC27282 , UCC27212 Hi Team, We are looking for High side driver but can’t find TI’s High side driver. Therefore, we would like to use High side of LM27222(Half bridge…

  • Resolved

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

• LM27222: exposed pad conenction

  

  Patrick Roth

  Resolved

  Part Number: LM27222 I don't find any recommendation for the exposed pad connection for the QFN package variant. To which potential is the exposed pad connected inside the package? Can I connect it to GND?

  • Resolved

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

• LM27222: Driving 2 N-Channel Fets switching a load of 18 Amps at 30 HZ

  

  Randy Craft

  TI Thinks Resolved

  Part Number: LM27222 Other Parts Discussed in Thread: UCC27282 What guilde lines should I follow to select the bootstrap capacitor for a LM27222 driving 2 N-Channel FETS switching a 18 AMP load at 30HZ? This is to use the LM27222 as a replacement for…

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

• RE: LM27222: Switching into a 2A Load

  

  Richard Herring

  Resolved

  Hello Gaurav, It is good to hear the LM27222 with the floating bias is working in your application. Regarding the multiple LM27222 circuits and the shared bias. The floating high side bias needs to be referenced to the CB and SW pins of each respective…

  • over 3 years ago
  • Power management
  • Power management forum

• LM27222, What to do with LEN?

  

  Jeramy Hughes

  TI Thinks Resolved

  Other Parts Discussed in Thread: LM27222 The data sheet for the LM27222 is not clear on what to do with LEN pin. It shows it going the the PWM "controller". Can I just tie this to +5V? That is how I have it now and it kinda works, but the MOSFETS…

  • over 5 years ago
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  • Power management forum

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