• [ CXLE88179 ]"

Ordering

CXLE88179 SOP16 LED driver chip: high performance, high reliability LED display and lighting solutions

In modern LED display and lighting systems, the performance of the driver chip directly determines the stability, energy efficiency and service life of the entire system. As a highly integrated driver chip designed for LED display, landscape lighting and general lighting, CXLE88179 has become a preferred solution in the market with its SOP16 packaging, multiple protection mechanisms and flexible configuration capabilities. This article will provide an in-depth analysis of the CXLE88179's technical features, application scenarios, and its advantages in actual projects to help engineers and procurement decision makers better understand and select the product.PeO嘉泰姆

1. Product Overview and Technical Highlights

CXLE88179 is an integrated serial decoding circuit and 8 high-efficiency PMOS output LED driver chip. Its maximum continuous output current can reach 2.5A, the on-resistance is as low as 100mΩ, and it has excellent energy efficiency performance. The integrated anti-burn power tube inside the chip effectively prevents device damage caused by overcurrent and overheating, and significantly improves system reliability.PeO嘉泰姆

In addition, CXLE88179 introducedDynamic Shadow Elimination TechnologyEffectively eliminate the "ghost" phenomenon that may occur during the refresh process of the LED display to ensure a clear picture and no afterimages. The technology supports 8-file anti-shadow potential adjustable, users can flexibly configure according to the actual application scenario, and optimize the display effect.PeO嘉泰姆

2. core features

•   Efficient output structure: Integrated 8 PMOS output channels, each supporting a maximum of 2.5A continuous current, suitable for high-brightness LED driver;PeO嘉泰姆

•   Anti-burn protection mechanism: Built-in power tube protection circuit to avoid permanent damage caused by short circuit or overload;PeO嘉泰姆

•   Dynamic Shadow Elimination Technology: Improve the quality of picture refresh and eliminate visual residue;PeO嘉泰姆

•   Low power designQuiescent current as low as 0.45mA, suitable for energy-saving equipment;PeO嘉泰姆

•   Reverse breakdown protection: Enhance the stability of the system under abnormal voltage;PeO嘉泰姆

•   Wide voltage operating range: logic power supply voltage support 3V ~ 5.5V, adapt to a variety of power supply environment;PeO嘉泰姆

•   SOP16 Package: Compact structure, easy to PCB layout and heat dissipation design.PeO嘉泰姆

3. pin definition and electrical characteristics

CXLE88179 using standard SOP16 package, pin definition is clear:PeO嘉泰姆

The chip works stably in the range of -40 ℃ to 85 ℃, and the logic power supply voltage range is 3V ~ 5.5V, which has good environmental adaptability and electrical compatibility.PeO嘉泰姆

4. Data Protocol and Register Configuration

The CXLE88179 adopts serial data input mode, supports multi-chip cascade, and is suitable for large-size LED display system. The rising edge of DCLK triggers data shift and channel switching, and RCLK is used to configure the cancellation register to realize dynamic adjustment of the cancellation potential.PeO嘉泰姆

The CXLE88179 is driven by the serial decoding line tube of the common anode display screen. Each line feed is fixed to send one DCLK, and the channel opening time is when the channel output is high.PeO嘉泰姆
The corresponding channel is opened, that is, after receiving the rising edge of DCLK, the data is shifted once, and the corresponding open channel is also shifted once. line scan drivePeO嘉泰姆
The rising edge of DCLK is a line feed signal. After the rising edge of DCLK collects SDIN data 1, the corresponding register output is 1, phasePeO嘉泰姆
A total of 8 ports: OUT0 ~ 7.PeO嘉泰姆
PeO嘉泰姆

The register configuration is controlled by the number of RCLK pulses, and the number of pulses from 8 to 23 corresponds to different shadow elimination voltages (2.0V ~ 3.75V). The user can select the appropriate gear according to the actual display requirements. For example:PeO嘉泰姆

•   8 pulses: 2.0V elimination voltagePeO嘉泰姆

•   11 pulses: silhouette voltage 2.75V (silhouette enhancement on)PeO嘉泰姆

•   19 pulses: silhouette voltage 2.75V (silhouette enhancement off)PeO嘉泰姆
4.2. Register configurationPeO嘉泰姆
Between TA-TD, that is, the period from the falling edge to the next rising edge is an area where register configuration can be performed, and the transmission of RCLK through the areaPeO嘉泰姆
number to perform the configuration of the registration.PeO嘉泰姆
PeO嘉泰姆
The correspondence between the register value and the number of RCLK is shown in the following table (if there are more than 23 pulses, the register value of the shading voltage configuration function will change cyclically from 0000 to 1111[16 states]). The default value is <3:0>= 1101PeO嘉泰姆
PeO嘉泰姆

5. typical application scenarios

CXLE88179 are widely used in a variety of LED display and lighting systems, including:PeO嘉泰姆

•   LED displaySuch as indoor and outdoor advertising screen, information release screen, stage background screen, etc;PeO嘉泰姆

•   LED landscape lighting: building outline lighting, landscape lighting belt, city lighting project;PeO嘉泰姆

•   General lighting drive: Support multi-channel LED lamp beads constant current drive.PeO嘉泰姆

The following figure shows the typical connection mode of the CXLE88179 in the 8-sweep, 16-sweep and 32-sweep LED display system, reflecting its good system compatibility and expansion ability.PeO嘉泰姆

(Illustration: The chip communicates with the controller through SDIN, DCLK, RCLK, and the output directly drives the LED row line. The structure is simple and the wiring is clear.)PeO嘉泰姆
5.1. 8-scan LED display application block diagramPeO嘉泰姆
PeO嘉泰姆
5.2. 16-scan LED display application block diagramPeO嘉泰姆
PeO嘉泰姆
5.3. 32-scan LED display application block diagramPeO嘉泰姆
PeO嘉泰姆

6. packaging and welding considerations

The CXLE88179 is packaged in SOP16 with a size of 10.00mm × 4.00mm and a pin spacing of 1.27mm, which is convenient for automatic patch and welding. In the use of the process need to pay attention:PeO嘉泰姆

•   The chip is an electrostatic sensitive device, and it is recommended to use anti-static measures in a dry environment;PeO嘉泰姆

•   The welding temperature should be controlled within a reasonable range to avoid overheating and damage to the device;PeO嘉泰姆

•   The pin layout is reasonable, and it is recommended to retain sufficient heat dissipation and electrical clearance in the PCB design.PeO嘉泰姆

7. performance characteristics

7.1. Limit parameters

PeO嘉泰姆
(1) These levels in the above table, the chip may cause permanent damage to the device and reduce the reliability of the device under long-term use conditions.PeO嘉泰姆
We do not recommend that the chip work beyond these limit parameters under any other conditions;PeO嘉泰姆
(2) All voltage values are tested relative to the system ground.PeO嘉泰姆
7.2. Electrical characteristics

7.2.1) DC characteristics (Ta =-40~80 ℃)PeO嘉泰姆
PeO嘉泰姆
7.2.2) AC CharacteristicsPeO嘉泰姆
PeO嘉泰姆

Eight,Conclusion

CXLE88179 with its high integration, high reliability, flexible configuration ability and perfect protection mechanism, become the ideal choice in the field of LED driver. Whether it is a display system with a high refresh rate or in lighting applications that require strict energy efficiency, CXLE88179 can provide stable and efficient drive support.PeO嘉泰姆

For more information about CXLE88179 technical information, sample application or purchase information, please visit our official website:jtm-ic.comWe will provide you with professional technical support and supply chain services.PeO嘉泰姆

Nine, the relevant chip selection guideMore similar products.....PeO嘉泰姆

◀ Previous:CXLE88178 Line Scan Driver Chip Data Sheet | 8-Channel Ghost Elimination LED Driver IC | JTM-IC

Back to top

Next▶:CXLE88180 constant current LED driver chip -16 channel high precision, 3-36mA adjustable, suitable for full color display