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  • LM3405A: Question about LM3405A

    TI Thinks Resolved
    Part Number: LM3405A Other Parts Discussed in Thread: TPS923655 Hello: We have an IC that was previously selected as LM3405axmk, with a maximum current of 1a and an input of 5V-22V, with a linear step-down. We used to input 5V with one 3V LED, but…

  • LM3405A: Maximum Duty Cycle

    Part Number: LM3405A Other Parts Discussed in Thread: TPS92200 Tool/software: Hi, The worst-case maximum duty cycle specified in the datasheet is 85%. This I assume is the specification across the full operating temperature range and accounting for…
    • Answered

  • LM3405: Using LM3405 / LM3405A to drive less than 200mA

    Resolved
    Part Number: LM3405 Other Parts Discussed in Thread: TPS92200 , , TPS92201 Tool/software: Also LM3405A. The graphs in the datasheet show an output current range of 200-1000mA. Are there any problems going lower than 200mA? We need 100mA. I tried 20mA…
    • Resolved

  • LM3405A: In PWM mode, hear to high-frequency noise

    Part Number: LM3405A Other Parts Discussed in Thread: TPS922052 , TPS92200 Tool/software: It is being developed by applying LM3405A LED Driver IC. Currently, high-frequency noise has occurred during the testing and has been improved in various ways, but…

  • LM3405A: Review

    TI Thinks Resolved
    Part Number: LM3405A Please review the following circuit to drive a backlight of 9.6V and 280mA
    • Answered

  • LM3405A: Schematic Review Request (LM3405A)

    Resolved
    Part Number: LM3405A Hi, TI expert There is a request for a schematic review using the LM3405A from a customer. The circuit diagram is attached as below. Customer wanted to use 4 LED VF 1.5V in series, but because the BOOST PIN is 5.5V the…
    • Resolved
    • Answered

  • LM3405A: Selection of LED driver

    Resolved
    Part Number: LM3405A Other Parts Discussed in Thread: TPS92612 Hello, I'm looking for an LED driver that can meet the following specifications. I think the LM3405A is the right device, what do you think? Also, are there any other suitable devices? …
    • Resolved

  • LM3405A: LM3405A

    TI Thinks Resolved
    Part Number: LM3405A Dear Sir, We are looking for the development of a 1A Constant Current LED driver using similar IC's like LM3405A Green LED Forward Voltage: 3.0v - 3.6v Typical Voltage: 3.1v Typical Forward Current: 700mA Qty:2 No's Red LED…
    • Answered

  • LM3405A: LM3405 constant current LED driver

    Resolved
    Part Number: LM3405A Other Parts Discussed in Thread: TPS92391 Hi, we need a constant current drive for our LCD project. The backlight spec is IF=200mA, VF=9V--10.2V. LM3405A datasheet says: Drives up to 5 High-Brightness LEDs in Series at 1A. because…
    • Resolved

  • LM3405A: Laser diode driver

    Part Number: LM3405A Other Parts Discussed in Thread: TPS92200 , TPS54200 Hi TI, I am trying to make a driver for laser diode. The device consists of 4 laser diodes. Two infrared and one red. This is a medical device and is intended for phototherapy…

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