• ISO7220A: ISO7220ADR LF AND HF PULSE COUNTER

  

  Michael Soldierram

  TI Thinks Resolved

  Part Number: ISO7220A Tool/software: We want to read High frequency (hf) and low frequency (lf) signals via ISO7220ADR. We made a drawing like this, is it correct? (MCU = STM32F401RET6) Thank you in advance for your help. Michael

  • 7 months ago
  • Isolation
  • Isolation forum

• ISO7220A-Q1: Do the ISO7220MDR and ISO7220AQDRQ1 use the same die?

  

  Haydn Reysenbach

  TI Thinks Resolved

  Part Number: ISO7220A-Q1 Other Parts Discussed in Thread: ISO7220A , ISO7220M Tool/software: As in the title, we have some testing on the ISO7220MDR but would prefer to use the ISO7220A-Q1 without redoing the testing. So can you confirm if they use the…

  • 6 months ago
  • Isolation
  • Isolation forum

• ISO7220A: Digital isolator is failing when ever driver fails

  

  hema danda

  TI Thinks Resolved

  Part Number: ISO7220A ISO7220A is used to drive LLC PWM pulses of 100khz- 250khz to PWM driver ucc27714DR. whenever pulses come into mosfets by sensing 400V at the input at that time both driver and Digital isolator is failing. For your reference, I…

  • over 2 years ago
  • Isolation
  • Isolation forum

• ISO7220A: PSPICE Model

  

  Nima KV

  TI Thinks Resolved

  Part Number: ISO7220A Hi Ive tried converting the available IBIS model to PSPICE Using model editor , but the file isnt getting uploaded into ibis translator . Is there a way you can provide me with the spice model Regards Nima

  • over 2 years ago
  • Isolation
  • Isolation forum

• ISO7220A: Unexpected output on power up

  

  Dan Pratt

  TI Thinks Resolved

  Part Number: ISO7220A We are using an ISO7220 as a substitute part in an older design. We have seen on some of our boards that when the device first powers up, the output does not reflect the input. Once the input is changed, the output then follows…

  • over 3 years ago
  • Isolation
  • Isolation forum
Answered

• RE: ISO7220A: ISO7221AD

  

  Koteshwar Rao

  Resolved

  Hi Sean, Sorry that you couldn't find the reliability data of ISO7220A on the TI website. TI website currently doesn't provide reliability data for isolators, please find below the data. Thanks. Part number : ISO72XX MTBF : 2.36E+09 FIT : 0.42…

  • over 6 years ago
  • Isolation
  • Isolation forum
Answered

• ISO7220A: PCN 20180911000 & Old Revisions

  

  Nathan Adams

  Resolved

  Part Number: ISO7220A Where do I find PCN 20180911000? Where do I find old revisions of this part ISO7220A? Want to verify changes between O and P.

  • Resolved

  • over 7 years ago
  • Isolation
  • Isolation forum
Answered

• ISO7220A-Q1: How to Isolate the positive and negetive voltage ?

  

  liang ren

  Resolved

  Part Number: ISO7220A-Q1 Other Parts Discussed in Thread: ISO7720 Hi In my design , I would like to use ISO7220 to isolate the negetive and positive signal, the signal is send to MCU which is in the positive voltage domain. Is the function right ?

  • Resolved

  • over 6 years ago
  • Isolation
  • Isolation forum

• ISO7220A: Output pulsing at device power on

  

  vince woodhams

  TI Thinks Resolved

  Part Number: ISO7220A I'm seeing an issue with this device which produces a pulse at B1 and B2 when the device is powered. Without any input to A1 or A2. Checking the way the device is powered at switch on, it appears that if V1 and V2 are not applied…

  • over 8 years ago
  • Isolation
  • Isolation forum
Answered

• RE: ISO7220A: OUTx power-up state with VCCI unpowered

  

  Anand Reghunathan

  Resolved

  Hi Matthew, When input side is unpowered and the output side is powered, the output state will go to the default state (HIGH). This is also valid if both sides are powered and INx is floating or open (OUTx will be HIGH). Please refer to Table 2 under…

  • over 8 years ago
  • Isolation
  • Isolation forum

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