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Showing 32 results View by: Thread Post Sort by
  • OPT4001-Q1: OPT4001-Q1 IF sensitive to frequencies induced by artificail light

    Xiaoxiang Liu
    Xiaoxiang Liu
    TI Thinks Resolved
    Part Number: OPT4001-Q1 Hi team, If the light source is 50Hz or 60Hz. Will this type of light source affect the detection of OPT4001-Q1, for example, possibly detecting incorrect low brightness values that differ from what the human eye sees? The…
    • 3 months ago
    • Sensors
    • Sensors forum
  • OPT4001-Q1: OPT4001-Q1 Speed Fall time & Rise time Issue

    Xiaoxiang Liu
    Xiaoxiang Liu
    TI Thinks Resolved
    Part Number: OPT4001-Q1 Hi team, Our customer is using a 90 kHz CLK with a rise time greater than 300 ns. According to the datasheet OPT4001-Q1, in Fast Mode, the data rate ranges from 10 kHz to 400 kHz. Does the signal rise time have to be less than…
    • 4 months ago
    • Sensors
    • Sensors forum
  • OPT4001-Q1: Observation of Noisy Illuminance Data with OPT4001DNPRQ1

    M F
    M F
    Part Number: OPT4001-Q1 Dear TI Representative, Thank you for your continued support. When using the OPT4001DNPRQ1 with RANGE REGISTER SETTING = 2 (fixed range) and CONVERSION_TIME REGISTER = 7 (50 ms) to measure the illuminance of an LCD panel…
    • 12 days ago
    • Sensors
    • Sensors forum
  • OPT4001-Q1: OPT4001-Q1 and thermal pad

    Tomasz Jastrzebski
    Tomasz Jastrzebski
    TI Thinks Resolved
    Part Number: OPT4001-Q1 Other Parts Discussed in Thread: OPT4041 Tool/software: Hi TI, Should/could I connect thermal pad of OPT4001-Q1 ambient light sensor in USON-6 package? I mean, can thermal pad be connected to GND or it must remain unconnected…
    • 11 months ago
    • Sensors
    • Sensors forum
  • Answered
  • OPT4001-Q1: I2C before VDD voltage applied

    Youhei Miyaoka
    Youhei Miyaoka
    Resolved
    Part Number: OPT4001-Q1 Hello team, Is it acceptable to apply 5V for SDA/SCL before VDD voltage applied? Regards, Youhei MIYAOKA
    • Resolved
    • 2 months ago
    • Sensors
    • Sensors forum
  • Answered
  • OPT4001-Q1: about a filter to receive sensor data

    Hironobu Tomita
    Hironobu Tomita
    Resolved
    Part Number: OPT4001-Q1 Other Parts Discussed in Thread: OPT3001-Q1 , Hello Support Team, This is an inquiry, not an issue. We are currently developing an automotive display driver IC. We are reviewing its specifications to support ambient light sensors…
    • Resolved
    • 2 months ago
    • Sensors
    • Sensors forum
  • OPT4001-Q1: High ambient temperature operation

    Natsuki Hayasaka
    Natsuki Hayasaka
    TI Thinks Resolved
    Part Number: OPT4001-Q1 Other Parts Discussed in Thread: OPT4001 Hello team, My customer consider to use OPT4001DNPRQ1, but ambient temperature is high. OEM requirement is below, thus we can think worst case is Ta=110C. Can our device operate such…
    • 2 months ago
    • Sensors
    • Sensors forum
  • OPT4001-Q1: OTP4001 PicoStar - 0.226 mm max height

    Alan Xia
    Alan Xia
    TI Thinks Resolved
    Part Number: OPT4001-Q1 Hi team, ALS is expected to be available in the PicoStar - 0.226 mm max height package. There are some problems in the packaging that need help to confirm PCB cutout recommends irregular shapes. Alternate PCB cut is a circular…
    • 5 months ago
    • Sensors
    • Sensors forum
  • Answered
  • OPT4001-Q1: Output value

    Youhei Miyaoka
    Youhei Miyaoka
    Resolved
    Part Number: OPT4001-Q1 Other Parts Discussed in Thread: OPT4001 Tool/software: Hello team, My customer want to know OPT4001 output value type. Could you tell us output value is the maximum or average value of the light irradiated to the photo sensor…
    • Resolved
    • 8 months ago
    • Sensors
    • Sensors forum
  • Answered
  • OPT4001-Q1: Unable to make one-shot modes work

    Guillaume Rosanis
    Guillaume Rosanis
    Resolved
    Part Number: OPT4001-Q1 Other Parts Discussed in Thread: OPT4001 Tool/software: Hello, Using an OPT4001-Q1 sensor on a matrix LED panel (custom design), to estimate ambient light level. I specifically picked this sensor for its short minimum acquisition…
    • Resolved
    • 6 months ago
    • Sensors
    • Sensors forum
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