6 digit LED driver circuit
The DS8877 is a versatile driver integrated circuit designed for applications requiring control of display elements, such as in calculators. The circuit configuration involves connecting the DS8877 to a 6-digit display, allowing for the management of current flow between 5 mA and 50 mA, which is suitable for driving LED or LCD segments efficiently.
In this configuration, the DS8877 operates without the need for standby power, which enhances the overall efficiency of the system, particularly in battery-operated devices. The choice of operating voltage is flexible, accommodating 4.5V, 6V, or 9V sources, making the circuit adaptable to various power supply conditions. This flexibility is crucial for ensuring compatibility with different power sources and for optimizing performance across a range of applications.
The circuit design should incorporate appropriate resistors to limit the current to the display elements, ensuring that the current remains within the specified range. Additionally, decoupling capacitors may be included near the power supply pins of the DS8877 to stabilize the voltage and minimize noise, which is essential for maintaining the integrity of the displayed data.
In summary, the DS8877 drive circuit configuration is an efficient solution for controlling a 6-digit display in a compact form factor, with the flexibility of operating voltage and current range, making it suitable for a wide array of electronic devices.Configure National Semiconductors DS8877 drive circuit as shown, when the 6 digit calculator and digital current conjunction, the current range is 5 to 50mA. Drive does not req uire standby power, the operating voltage may be 4.5V, 6V, may be 9V.
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