Answered

• TPS62147: Switching frequency in case of forced PWM mode

  

  Yoshifumi Shimojima

  Resolved

  Part Number: TPS62147 Dear TI support team, I measured frequency in case of my condition below. --------- MODE, FSEL and EN pin: pulled high(=5V=VIN) VIN = 5.0V, VOUT = 1.2V, IOUT = 20mA --------- I got a waveform below. 1.8MHz appears in the…

  • Resolved

  • over 3 years ago
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• TPS62147: How to adapt an existing TPS62135 PCB to use TPS62147/TPS62148?

  

  AnBer

  TI Thinks Resolved

  Part Number: TPS62147 Other Parts Discussed in Thread: TPS62135 Team, -Is it possible to use a TPS62147RGXR / TPS62148RGXR on an existing TPS62135RGXR PCB? All 3 devices have the same VQFN-HR package. The main difference is pin 4 (FB2 on x35 and AGND…

  • over 5 years ago
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• TPS62147: IBIS MODEL on EN pin

  

  Motoyasu Hattori

  TI Thinks Resolved

  Part Number: TPS62147 Hi, My customer wants to simulate Signal Analysis of EN pin on TPS62147RGXR . Is it possible to release IBIS model of EN pin? If difficult, could you please let us know the RLC e quivalent circuit ? Thanks and best regards, M…

  • over 4 years ago
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Answered

• TPS62147: TPS62147 digital input connections

  

  Mark Whittington

  Resolved

  Part Number: TPS62147 Hi, The datasheet for the TPS62147 mentions in the layout guidelines (12.1) the following: "In case any of the digital inputsEN, FSEL or MODE need to be tied to the input supply voltageat VIN, the connection must be made directly…

  • Resolved

  • over 6 years ago
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Answered

• TPS62147: TPS62147RGXT

  

  Brandon Flores

  Resolved

  Part Number: TPS62147 Other Parts Discussed in Thread: TPS61196 Per customer: Our LCD driver PCB is using a TPS62147 for 10V power to the LCD, and a TPS61196 LED driver to power the backlight. We are experiencing an issue that is looking more and more…

  • Resolved

  • over 4 years ago
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• RE: TPS62147: TPS62147: Duty Cycle Mode

  

  Lei wang

  TPS62147 is also True 100% mode ? But some chip can not up to 100%

  • over 6 years ago
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• TPS62147: Possible to occur Glitch on PG Output

  

  Motoyasu Hattori

  TI Thinks Resolved

  Part Number: TPS62147 Other Parts Discussed in Thread: TPS3899 Hi, According to TPS62147 datasheet P.5, we can find PG threshold. As the above table, MAX threshold voltage of PG High->Low is MAX 98%-3%=95%. If voltage is below 95% for an instant…

  • over 4 years ago
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Answered

• TPS62147: Input Inrush Current limit

  

  Edgard

  Resolved

  Part Number: TPS62147 Dear Engineers, I have one concern about inrush current on input. I desinged the board and measured inrush current. Then I found large current "about 50A" occurred... (please refer to the picture attached. Blue is input…

  • Resolved

  • over 5 years ago
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Answered

• TPS62147: Input filter necessary?

  

  Matthew Findlow

  Resolved

  Part Number: TPS62147 Hi, I need a buck converter for a board which has a VHF packet radio transceiver. I'm bucking from 14V to 5 V. The 5V feeds a 3.3V LDO which powers the transceiver. The five volts also powers USB host, (500ma out), and is for this…

  • Resolved

  • over 6 years ago
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Answered

• TPS62147: Is it OK if Vout=5V while no Vin

  

  Dong Shen

  Resolved

  Part Number: TPS62147 Hi, Team My customer wants to know - for TPS62147, if Vout is added external 5V while no Vin, Is it OK? Vin is connected with input caps and no other load. We are afraid that TPS62147 internal circuit has issue in this condition…

  • Resolved

  • over 5 years ago
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