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LB-303MK - ROHM Semiconductor

Description: LED Displays & Accessories LED NUM 3 DIGIT DISPLAY.3" CC GRN

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LB-303MK - ROHM Semiconductor - PCB symbol
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PCB Footprints
LB-303MK - ROHM Semiconductor PCB footprint - Dual-In-Line Sockets - Dual-In-Line Sockets - LB-303MK
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LB-303MK Details

  • Manufacturer Part Number:

    LB-303MK

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Package Description:

    PLASTIC PACKAGE-11

  • Country Of Origin:

    Japan, Mainland China, Malaysia

  • HTS Code:

    8541.40.20.00

  • Manufacturer:

    ROHM Semiconductor

  • YTEOL:

    0

  • Color:

    GREEN

  • Color@Wavelength:

    Green

  • Configuration:

    COMMON CATHODE, MULTIPLEXED, 3 DIGITS WITH DECIMAL POINT

  • Display Height:

    8 mm

  • Forward Current-Max:

    0.02 A

  • JESD-609 Code:

    e1

  • Number of Characters:

    3

  • Number of Functions:

    3

  • Operating Temperature-Max:

    75 °C

  • Operating Temperature-Min:

    -25 °C

  • Optoelectronic Device Type:

    7 SEG NUMERIC LED DISPLAY

  • Peak Wavelength:

    563 nm

  • Terminal Finish:

    Tin/Silver/Copper (Sn/Ag/Cu)

LB-303MK Frequently Asked Questions (FAQs)

  • ROHM recommends a 4-layer PCB with a solid ground plane and a separate power plane for the IC. Keep the input and output traces short and away from each other to minimize noise and coupling. Use a 10uF capacitor between VCC and GND for decoupling.
  • The LB-303MK has a thermal pad on the bottom. Ensure good thermal contact with the PCB by using a thermal interface material (TIM) and a heat sink if necessary. Keep the ambient temperature below 85°C and avoid hot spots on the PCB.
  • The EN pin is a digital input and should not exceed VCC (3.3V or 5V) to prevent damage. A voltage higher than VCC may cause the IC to malfunction or be damaged.
  • Yes, the LB-303MK is suitable for battery-powered devices due to its low quiescent current (IQ) of 1.5uA. However, ensure the battery voltage is within the recommended operating range (2.7V to 5.5V) and consider the IC's power-down mode to minimize power consumption.
  • Start by checking the power supply voltage, ensuring it is within the recommended range. Verify the input and output connections, and check for any signs of overheating. Use an oscilloscope to monitor the output voltage and current. Consult the datasheet and application notes for specific troubleshooting guidelines.

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LB-303MK Overview

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