• LM3492: 4 Channel LED Board with 2 LM3492 where Driver is not working

  

  Rene Frank

  Part Number: LM3492 Hello, I'm working on a 4 Channel LED Board where two of the LM3492 are beeing used. First driver is connected two the first two strings of LED and the second driver is connected to the third and fourth sting of LED. The board sholud…

  • over 2 years ago
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Answered

• LM3492: Datasheet 9.2.2.7 RRT and RIREF

  

  Siegmund Schlechter

  Resolved

  Part Number: LM3492 Hi TI, the resistors RRT and RIREF set the switching frequency fSW of the boost converter and the LED current ILED respectively. Figure 16 shows values for ILED of 150mA only. Determining for other values is not possible. A small…

  • Resolved

  • over 1 year ago
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• LM3492: Interface Spec 4 MCU control signals

  

  Siegmund Schlechter

  TI Thinks Resolved

  Part Number: LM3492 I'd like to connect some LM3492 signals to an MCU. The datasheet 7.1 Absolute Ratings shows Output Voltage values for COMM, DIM1, DIM2 only, but what about Max Input voltage? Is it the same? And what about VEN max? There are…

  • over 1 year ago
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• LM3492: Can this part be used with lower LED current - 20-25mA

  

  Mike Sprauve

  TI Thinks Resolved

  Part Number: LM3492 Other Parts Discussed in Thread: TPS61165 Tool/software: Hi I have a design need for a 2 channel 16 string IR/RED Leds, this part seems to fit all my needs except for the current regulation Here are the following parameters Vf…

  • over 1 year ago
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• LM3492: LM3492 failure at start-up

  

  Artiom Orlov

  TI Thinks Resolved

  Part Number: LM3492 Hi TI team, We had another customer's RMA. Three lamps failed again. Please see picture of damaged IC. Can you confirm what internal circuit may cause this severe eruption? MOSFETs? Thanks

  • over 3 years ago
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Answered

• LM3492: LM3492/-Q1 in discontinuous mode

  

  Artiom Orlov

  Resolved

  Part Number: LM3492 Hi there, We had some ICs (LM3492/-Q1) failures on a customer's site. Just wondering how well this IC can handle discontinues mode if used with light loads? Thanks

  • Resolved

  • over 4 years ago
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• LM3492: working with overvoltage

  

  Andreas Leibig

  Part Number: LM3492 Hello, from 8.5.1 of the data sheet, I can see that overvoltage will be indicated , but what else will happen? The following I tried with my evaluation board: LED string with 43V forward voltage ILED1=100mA dimming over PWM…

  • over 3 years ago
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• LM3492-Q1: LM3492-Q1 Max dimming frequency

  

  Fery Feng

  TI Thinks Resolved

  Part Number: LM3492-Q1 Hi team, Could you please help to double check if LM3492-Q1 can support dimming frequency up to 20KHz? Thanks!

  • over 4 years ago
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• LM3492: LM3492 output range

  

  Iwata Etsuji

  TI Thinks Resolved

  Part Number: LM3492 Hi team, Could you please clarify followings? - Can we set the any value in the output range of 50 - 200mA? - Is it possible to set a boost voltage such as 12V input voltage to 15V output voltage? - Can settings such as 12…

  • over 6 years ago
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Answered

• LM3492: LM3492 Channel Current Programming

  

  Kazuki Itoh

  Resolved

  Part Number: LM3492 Hi, Quick question, is LM3492 able to control each channel current and current limitation independently? It looks it cannot, but I'd like to make sure that. Regards, Itoh

  • Resolved

  • over 5 years ago
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