Description:Two Digit LED Numeric Displays : 2-digit displays are available in packages of character height 7.62mm, 10.16mm, 13mm and 14.3mm. 2-digit displays in package of character height 14.3mm are available featuring AlGaInP-die type to meet the market needs of high-brightness/low current consumption,as well blue-color emission type in lineup.
A good PCB layout for the LB-602VA2 involves keeping the input and output traces short and separate, using a solid ground plane, and placing decoupling capacitors close to the device. ROHM provides a recommended PCB layout in their application notes.
To ensure stability, make sure to follow the recommended component values and PCB layout. Additionally, ensure that the input and output capacitors are of high quality and have low ESR. A minimum of 10uF capacitance is recommended for the output capacitor.
Although the datasheet specifies a maximum input voltage of 18V, it's recommended to limit the input voltage to 15V to ensure reliable operation and prevent damage to the device.
While the LB-602VA2 is rated for operation up to 85°C, it's essential to consider the device's power dissipation and thermal resistance when operating in high-temperature environments. Ensure proper heat sinking and thermal management to prevent overheating.
When troubleshooting, check the input voltage, output voltage, and current. Verify that the device is properly soldered and that the PCB layout is correct. Use an oscilloscope to check for oscillations or noise on the output. Consult ROHM's application notes and technical support for further assistance.
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LB-602VA2 Overview
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