Currently led display chip , LED display dedicated driver chip manufacturers are mainly TOSHIBA (Toshiba), TI (Texas Instruments), SONY (SONY), MBI{JI technology}SITI (Point Crystal Technology) and so on. In the domestic LED display industry led display chip , these chips have applications. TOSHIBA products have a high cost performance led display chip , and have the highest share in the domestic market.
Taiwan accumulation MBI5024, MBI5026, Japan Toshiba TB62726 Function: LED driver chip, 16-bit shift latch (mainly used for outdoor modules) led display coreFilm ; Its function is similar to 74HC595, except that the TB62726 is a 16-bit shift latch with output current adjustment function, but there is no high level on the parallel output outlet, only high resistance state and low level state.
LED chip in 2833523014 refers to the size of the chip, the size can be customized, this is just the general common specifications (mil is a unit of size, a mil is one thousandth of an inch, 40mil is almost 1 mm), so can not only this to determine the better or worse.
LED coreA problem or non-transmission could be this IC damaged or soldered. 2, 4953 function is the control line, if the horizontal direction of the board is faulty and the whole line is generally the fault of this IC. 1 piece 4953 controls 8 rows. 3, 74HC138 function is to control the scan, input A, B and OE signal output 4 signals to control 2 pieces 4953.
, 74HC04 function: 6-bit inverter. Pin 7 GND, power source. Pin 14 VCC, power positive. The signal is input from the A end and output from the Y end in reverse phase, A1 and Y1 are a group, and so on. Example: A1If = "1", Y1= "0", A1= "0", Y1= "1", and other groups have the same function.
is equivalent to the CPU of the computer is a major component. It mainly includes LED open circuit protection, LED short circuit protection, chip overtemperature protection, overvoltage protection, undervoltage protection and degree FB short circuit protection. LED lamp power supply, also known as LED power supply, is a device that provides power to LED lamps, which provides all the components of LED lamps and lanterns. The size of the power supply, current and voltage is stable, will directly affect the working performance and service life of LED lamps.
ABCD is the line scan signal, D is the highest bit and A is the lowest bit. From these four signals travel H1-H8 through a 3-8 line decoder such as 138. When the ABCD signal is full time, it is 1/16 scan mode, and D is 138 chip bit selection, that is, when there is a 138 chip D signal of 1, this 138 does not work, the other is working, and the two 138 are working alternately.
The role of the chip: common chips are: CPU, GPU, memory flash, memory card DRAM, microcontroller MCU, digital-to-analog conversion chip, analog-to-digital conversion chipSensor chip: such as temperature sensor, humidity sensor, etc., LED light chip and so on. The CPU is mainly used to process digital signals in the computer, you know that the electrical signals that the computer can process are digital signals, that is, 0 and 1 signals. The GPU is mainly used to process graphics signals.
LED dot matrix display system, with AT89S52 single chip microcomputer as the core, by keyboard display, temperature acquisition, serial communication, LED large screen display and other functional modules.
LED display special driver chip, is a chip that provides compensation current for LED, acting as the interface between the microprocessor (microprocessor) and liquid crystal display (LCD). The performance of the driver chip determines the effect of the broadcast of the LED display screen, which is a key component, just like the central nervous system of the human brain, which is in charge of the body's physical actions and the operation of the brain's thinking consciousness.
Screen chip is a chip specially used to control the display screen, which is responsible for processing images and visionFrequency signal to drive the display screen to present a clear picture. The screen chip is not a direct substitute for the lithographic chip. A photolithographic chip is a chip manufactured using photolithographic technology, which is one of the core components of modern electronic devices and is responsible for performing various computing and control tasks.
The screen chip refers to the core hub that controls the display, brightness and color of the screen, which plays a very important role. The screen chip can help the LED to provide compensation current, the screen chip here as an interface, both connected to the LCD screen, but also connected to the microprocessor, the role and the computer screen panel driver is similar, you canDeal with the shortcomings of components. The screen chip not only controls the screen display, but also controls the color and brightness of the screen.