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Showing 28 results View by: Thread Post Sort by
    Answered
  • LM3423-Q1: LED current high voltage tolerance

    David Park
    David Park
    Resolved
    Part Number: LM3423-Q1 Hi, Could you let me know tolerance of below value at operating range? In the datasheet, there is only typical. What is min and max? OCP is described that it is 30% above regulation set point. CSH is from 1.21V~1.26V…
    • Resolved
    • over 8 years ago
    • Power management
    • Power management forum
  • LM3429-Q1,LM3423-Q1

    kura
    kura
    Other Parts Discussed in Thread: LM3423-Q1 , LM3429-Q1 Our customer is checking LM3429-Q1 or LM3423-Q1 datasheet. They would like to use these part for following application. <Application> Vin:6V-18V Vout:24.75V-33.75V ILED:1.5A nLED:9 series…
    • over 9 years ago
    • Power management
    • Power management forum
  • LM3429-Q1/LM3423-Q1

    kura
    kura
    Other Parts Discussed in Thread: LM3423-Q1 , LM3429-Q1 , LM3429 , LM3421 Our customer is checking LM3429-Q1 or LM3423-Q1 datasheet. They would like to use these part for following application. <Application> Vin:6V-18V Vout:24.75V-33.75V ILED…
    • over 9 years ago
    • Power management
    • Power management forum
  • Answered
  • LM3423-Q1: level shifting circuit

    David Park
    David Park
    Resolved
    Part Number: LM3423-Q1 Other Parts Discussed in Thread: LM3423 Hi, In LM3423 datasheet, Figure 27, There is level shifting circuit for PMOS dimming. Vcc is connected to Q6 and it seems to be enable dimming when IC turns on. Is it correct? With…
    • Resolved
    • over 8 years ago
    • Power management
    • Power management forum
  • LM3423-Q1: How to measure offset voltage and regulation voltage.

    BJ Han
    BJ Han
    TI Thinks Resolved
    Part Number: LM3423-Q1 Dear TI Team, Would you help this request? Questions 1. HSP-HSN error amp offset voltage measurement method. It is marked +/- 7mV on DATASHEET. As the following table only shows, should the error amp offset voltage be measured…
    • over 8 years ago
    • Power management
    • Power management forum
  • LM3423-Q1: Current control problems in ILED

    BJ Han
    BJ Han
    Part Number: LM3423-Q1 Hi TI, I made the following circuit configuration. The current problem is that the current of ILED is set at 290mA but it is output at 520mA. <setting value> - ILED = VSNS/RSNS = 1.24V/RSNS*RHSP/RCSH - LED Current : 290mA…
    • over 8 years ago
    • Power management
    • Power management forum
  • Answered
  • LM3423-Q1: about min PWM H period

    Kaji@PAN
    Kaji@PAN
    Resolved
    Part Number: LM3423-Q1 Hi, I am considering the following contents, is it possible? The dimming method is only PWM dimming and analog dimming is not performed. The width of the minimum PWM H period is 1.5us. In my opinion, it can be set up to the operating…
    • Resolved
    • over 9 years ago
    • Power management
    • Power management forum
  • Answered
  • LP8860-Q1: Backlight driver for display high LP8860 vs LM3423

    AMIR OREN
    AMIR OREN
    Resolved
    Part Number: LP8860-Q1 Other Parts Discussed in Thread: LP8866-Q1 , LM3424 Hello TI e2e team, im design baclight driver card for multi displays the VIn range is 14V to 35V the output voltage change IAW the LEDs, 10 up to 100 with current of 100…
    • Resolved
    • over 5 years ago
    • Power management
    • Power management forum
  • LM3475: From a constant voltage power supply to a constant current output.

    ?? ?
    ?? ?
    TI Thinks Resolved
    Part Number: LM3475 Other Parts Discussed in Thread: LM5117 , LM3423-Q1 I want to build a constant current circuit with constant load current of 0.5A, the load impedance is varied from 10~100ohm (which means the output voltage should be adjusted from…
    • over 4 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: Automotive back light LED driver

    Ryuji
    Ryuji
    Resolved
    Hello Clinton san, Thank you for the reply. Since the customer required Fault Diagnostics function, I promote the TPS92601-Q1 , LP8860-Q1 and LM3423-Q1. Could you please let me know the how to calculate dimming ratio ? If there is any application…
    • over 10 years ago
    • Power management
    • Power management forum
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