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  • LM3409-Q1: Minimum Ripple Current

    Resolved
    Part Number: LM3409-Q1 Other Parts Discussed in Thread: LM3409 Hello, The LM3409-Q1 datasheet (SNVS602L) section 8.3.4 gives a minimum ripple current requirement in order to achieve reliable current regulation: The LM3409 Demonstration Board User's Guide…
    • Resolved

  • LM3409-Q1: LM3409-Q1 Output current

    TI Thinks Resolved
    Part Number: LM3409-Q1 Hi Expert customer want to use LM3409-Q1 for 20A/5V output（12V input）. can we support it?

  • LM3409-Q1: can LM3409-Q1 support 7A current

    TI Thinks Resolved
    Part Number: LM3409-Q1 Hi Expert, Our customer has a new request. They want to output 7A current. Is it possible for LM3409-Q1 drive external to achieve that? Do you have related reference design? Thanks. BR, Elec Cheng
    • Answered

  • LM3409-Q1: Analog Dimming Profile test data

    Resolved
    Part Number: LM3409-Q1 Hi team, Could you help to provide the test data for the below curve, especially for non-linear part in the red circle? BRs, Haury
    • Resolved

  • LM3409-Q1: High frequency band noise inquiry (EMC CE test with DLPC230)

    TI Thinks Resolved
    Part Number: LM3409-Q1 Hi Experts, My customer faced an EMC noise issue on LM3409-Q1. Could you please give me any advice? Issue.1 They are conducting an EMC test (CE) on the DMD headlamp, but the noise in the high frequency band (50MHz~100MHz) is out…

  • LM3409-Q1: How to understand the Imaxh and I maxL

    TI Thinks Resolved
    Part Number: LM3409-Q1 Hi Expert because of comparator's input offset, Imax value have offset so customer have two question as below: 1. how to get I maxH and ImaxL value? 2. because this offset will influence output current accuracy so they need…

  • LM3409-Q1: LM3409-Q1 PGATE control Issue

    TI Thinks Resolved
    Part Number: LM3409-Q1 Hi Expert My customer need the test issue as below show: firstly this device used in DLP LED driver and customer schematic as below: in their test, they doesn't input PWM, just input 0.66V to IADJ when input voltage =12V everything…
    • Answered

  • LM3409-Q1: LM3409 loop parameter question

    Resolved
    Part Number: LM3409-Q1 Hi Expert in the EVM: 1. my customer change the parameter is: Roff: 1K Coff: 470pf RSNS: 75mohm EN PWM: 140HZ PWM min pulse: 5uS min stable current: 385mA customer used internal PWM method, control EN pin. situation: When external…
    • Resolved

  • LM3409-Q1: LM3409-Q1 Minimum Output Current

    TI Thinks Resolved
    Part Number: LM3409-Q1 Hi Expert in the analog dim, i know Vadl can control output Led current. but I doesn't found calculate about LED current and Vadj. i just found below information in datasheet. could you please share the calculate method base…

  • LM3409-Q1: LM3409-Q1min pulse length

    TI Thinks Resolved
    Part Number: LM3409-Q1 Hi Expert application condition: input voltage: 12V output: 1.7~3.5V 3A 120Hz my customer have four question as below: 1. how many is our device minimum pulse length? how to calculate it?(i know 115ns is device min pulse but we…

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