COMMON ANODE, MULTIPLEXED, 4 DIGITS WITH DECIMAL POINT
Display Height:
10 mm
Forward Current-Max:
0.03 A
Forward Voltage-Max:
2.4 V
JESD-609 Code:
e0
Number of Characters:
4
Number of Functions:
4
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-35 °C
Optoelectronic Device Type:
7 SEG NUMERIC LED DISPLAY
Peak Wavelength:
660 nm
Terminal Finish:
Tin/Lead (Sn/Pb)
LTC-4627WC Frequently Asked Questions (FAQs)
The recommended PCB layout for optimal thermal performance involves placing the device on a thermal pad connected to a large copper area on the PCB, and ensuring good airflow around the device. A 4-layer PCB with a solid ground plane and a thermal relief pattern around the thermal pad is also recommended.
To ensure reliable operation in high-temperature environments, it is recommended to derate the device's power dissipation according to the temperature derating curve provided in the datasheet. Additionally, ensure good airflow around the device, and consider using a heat sink or thermal interface material to improve heat dissipation.
The recommended input and output capacitors for the LTC-4627WC are low-ESR ceramic capacitors with a voltage rating of at least 2x the input voltage. A 10uF to 22uF input capacitor and a 10uF to 47uF output capacitor are typical values. The capacitor selection should be based on the specific application requirements and PCB layout.
To troubleshoot oscillations or instability issues in your design, check the PCB layout for any potential noise coupling or resonance issues. Ensure that the input and output capacitors are properly selected and placed close to the device. Also, check the device's feedback loop for any potential instability issues, and consider adding a small capacitor in parallel with the feedback resistor to improve stability.
The recommended soldering and rework conditions for the LTC-4627WC involve using a soldering iron with a temperature of 260°C to 280°C, and a soldering time of 3 to 5 seconds. For rework, use a hot air rework station with a temperature of 220°C to 250°C, and a rework time of 10 to 30 seconds. Ensure that the device is handled and stored in accordance with the recommended moisture sensitivity level (MSL) rating.
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LTC-4627WC Overview
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