Search tips
Showing 61 results View by: Thread Post Sort by

  • LM3532: Addressing multiple LM3532's on the same board? Your recommendation?

    Part Number: LM3532 Other Parts Discussed in Thread: LP5520 , LP8860-Q1 , LM3697 , LM3633 , LM3533 , TPS61040 , TPS61042 , TPS61043 , LM3530 , TPS61169 , LM3410 , TPS61176 , TPS61177 , LP8556 , TPS61196 I'm looking at a project that could benefit from…

  • LM3532: Impossible to dim to off without a noticeable step?

    Part Number: LM3532 I am trying to dim the LEDs to OFF without any noticeable step at the end. The datasheet states an "14 bit equivalent dimming", which if true, should provide undiscernible step to OFF. The only approach I didn't try with the LM3532…

  • LM3532: Mismatched String Lengths: Use a separate voltage regulator fed with LM3532's Vout?

    TI Thinks Resolved
    Part Number: LM3532 In the situation where the string lengths vary greatly such as 5 vs 3 (a difference of 6V), section 7.3.3 of the datasheet recommends using a separate supply for the shorter string(s). Would it be ok to feed a voltage regulator's Vin…
    • Answered

  • LM3532: Mismatched String Lengths: Wasted power?

    Resolved
    Part Number: LM3532 My understanding is that the only section in the datasheet that discusses mismatched string lengths is 7.3.3. My application requires mismatched string lengths. The longest string ILED1 is 5 LEDs and the shortest ILED2 is 4 LEDs…
    • Resolved
    • Answered

  • LM3532: Max current clarification: 1A 880mA 90mA ?

    Resolved
    Part Number: LM3532 The datasheet's front page says 1A Typical Current Limit. Section 8.2.2.4 says the max current limit is 880mA. However, the full scale current register can only be set as high as 29.8mA per string, for a total of 90mA.
    • Resolved
    • Answered

  • LM3532: Possible to program the POR (Power On Reset) registers?

    Resolved
    Part Number: LM3532 I want to use the LM3532 as a standalone chip. I would preprogram its POR registers so that it refers to those settings on power up. Is this possible? My tests thus far suggest the POR registers are not being set. The POR table…
    • Resolved

  • LM3532EVM: Can't get LM3532 GUI to provide onboard power!

    TI Thinks Resolved
    Part Number: LM3532EVM Other Parts Discussed in Thread: LM3532 , USB2ANY I've had identical problems as John Connely48 in this thread: e2e.ti.com/.../622095 After downloading the LM3532 GUI provided in that thread, I was able to install it and connect…
    • Answered

  • LM3532 HWEN Pin without pullup

    Resolved
    Other Parts Discussed in Thread: LM3532 Hello, I was wondering is it okay to connect the HWEN pin on the LM3532 directly to Vin without using a pullup resistor? Would there be any problems?
    • Resolved

  • LM3532 / short ILEDx pin to GND

    Other Parts Discussed in Thread: LM3532 Hi Team, My customer concerns about failure mode of LM3532. Could you tell me what happens if ILEDx pin short to GND? The LED structure of his application is triple string 4LEDs(Vf=3.0V x 4) and input voltage…

  • LM3532

    Other Parts Discussed in Thread: LM3532 The LM3532 is designed with an integrated 40V boost converter. I want to use this with a single RGB led and do not need the boosted voltage. Will this device operate correctly/safely if I remove the inductor and…

Didn't find what you are looking for? Post a new question.