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.
Related Circuits
This circuit is utilized in RS-232 serial interface and current loop circuit applications. It converts voltage signals into a 20mA current signal, with a maximum transmission rate of 1200 bits per second. The CCD IC1 and transistor T1 form...
This is a function generator project that can be used as a triangle and square wave generator. The main components include the CD40106, a popular CMOS integrated circuit, and a standard transistor. The function generator circuit utilizes the CD40106, which...
The Dish Network 322 Satellite Receiver enables television viewing of two distinct programs in two separate locations. This is a schematic block diagram illustrating an exemplary circuit logic diagram. The receiver is capable of predicting the elevation angle for...
The Multiport W723 is an adjustable constant current regulator designed for use in switching regulator circuits, capable of delivering an output current of 1A. In the illustrated circuit, the W723 reference base voltage is approximately 7.2V. This voltage is...
This device is designed for individuals seeking to achieve a tan while minimizing excessive exposure to sunlight. It utilizes electrolytic capacitors as one of its components. The tanning device operates by utilizing a controlled exposure mechanism that regulates the intensity...
The circuit simultaneously generates a square wave, triangle wave, and sine wave, making it particularly suitable for electronics enthusiasts and students who wish to observe signal waveforms using an oscilloscope. This signal generator circuit is simple, low-cost, and allows...