CXLE87197 is a single wire three channel constant current driver chip designed specifically for high-end LED lighting systems. It adopts a wick integrated package and integrates MCU single wire digital interface, data latch, LED constant current driver, and PWM brightness control circuit. The chip supports dual channel input of DIN and FDIN, as well as dual data output of DO1 and DO2, with strong cascading fault tolerance capability. Even if one chip is damaged in the link, it will not affect the normal operation of subsequent chips.
-
[ CXLE87197 ]"
Comprehensive analysis of CXLE87197 high-precision adjustable constant current LED driver chip
In the field of LED display and decorative lighting, there is an increasing demand for precision, flexibility, and reliability of driving chips. CXLE87197, as a high-performance LED driver chip that integrates adjustable constant current output, 65536 levels of true grayscale, and dual channel level communication, has become an ideal choice for high-end applications such as point light sources, guardrail tubes, indoor and outdoor large screens due to its excellent performance and flexible configuration capabilities. This article will delve into the technical features, control protocol, application design, and system optimization solutions of CXLE87197, providing engineers with a complete reference guide.
1、 Product Overview
CXLE87197 is a single wire three channel constant current driver chip designed specifically for high-end LED lighting systems. It adopts a wick integrated package and integrates MCU single wire digital interface, data latch, LED constant current driver, and PWM brightness control circuit. The chip supports dual channel input of DIN and FDIN, as well as dual data output of DO1 and DO2, with strong cascading fault tolerance capability. Even if one chip is damaged in the link, it will not affect the normal operation of subsequent chips.
The biggest highlight of this chip is its support for 127 levels of adjustable current ranging from 2mA to 17mA per channel, and its ability to output 65536 levels of true grayscale. Combined with a 1.2MHz high-speed data transmission and dual channel forwarding architecture, it can meet the display and lighting needs of high refresh rates and high grayscale levels.
2、 Core functional features
• Wide voltage operating range：3.5V~5.5V， Adapt to various system power supply designs;
• Adjustable constant current outputEach channel has a current of 2mA~17mA, adjustable in 127 levels, and the formula is as follows:
I(mA) = 2 + 15 × (D - 1) / 126 （D=1~127）；
• High precision grayscale controlRGB three channels all support 65536 level PWM dimming, with smooth color transitions;
• Dual channel input and dual channel outputSupport DIN/FDIN automatic or manual switching, DO1/DO2 dual forwarding, high system reliability;
• Ultra high data transmission rate1.2MHz communication frequency, supporting high-density pixel systems;
• Low power standby modeStandby current as low as 190μ A, supports automatic and command wake-up;
• High precision current outputChannel error≤± 3%, inter chip error; 5%；
• Multiple working modesSupports normal mode, DIN mode, FDIN mode, and test mode.
3、 Electrical characteristics and working conditions
CXLE87197 performs stably within the recommended operating voltage range, with a DIN/DIN input high-level threshold of 2.8V and a low-level threshold of 1.0V, and has good noise tolerance. The output current of the OUT port can be precisely adjusted within the range of 2mA~17mA, with a leakage current below 0.3A, ensuring that the LED has no low light phenomenon when turned off.
The chip supports a data transmission rate of 1.2MHz, with a PWM output frequency of 4kHz and a transmission delay time of only 150ns. It responds quickly and is suitable for high-speed dynamic display scenarios.
3.1. Limit parameter
(1) The levels listed in the table above may cause permanent damage to the device and reduce its reliability when the chip is used for a long time. We do not recommend the chip to operate beyond these limit parameters under any other conditions;
(2) All voltage values are tested relative to the system ground.
3.2. Recommended working conditions
3.3. Electrical Characteristics
3.4. Switch characteristics
3.5. temporal characteristic
(1) The chip can operate normally within the range of 830ns (frequency 1.2MHz) to 2.5us (frequency 400KHz) for 0-code or 1-code cycles, but the high-level time of 0-code and 1-code must comply with the corresponding numerical range in the table above;
(2) When no reset is required, the low-level time between bytes should not exceed 25us, otherwise the chip may reset and then receive data again, making it impossible to achieve correct data transmission.
4、 Control Protocol and Data Format
4.1. Working mode configuration
The chip supports four working modes, configured through a 48 bit command code (first 24 bits command+last 24 bits reverse code):
• 0xFFFFFF_000000Normal working mode, DIN/FDIN automatic switching;
The chip is configured to operate in normal mode. In this mode, the default DIN receives display data for the first time, and the chip detects that there is a signal on the port
If the number is input, the port will continue to receive data. If no data is received for more than 160ms, it will switch to FDIN to receive data, and the chip will detect it
If there is a signal input to the port, keep it receiving. If no data is received for more than 160ms, switch back to DIN connection
Collect and display data. DIN and FDIN switch in a cyclic manner to receive display data.
• 0xFFFFFA_000005DIN working mode, only receiving DIN data;
The chip is configured to work in DIN mode, in which the chip only receives display data input from the DIN end, and the FDIN end data is invalid.
• 0xFFFFF5_00000AFDIN working mode, only receiving FDIN data;
The chip is configured to operate in FDIN mode. In this mode, the chip only receives display data input from the FDIN end, and the DIN end data is invalid.
• 0xFFFFF0_00000FTest mode.
Chip configured for testing mode
4.2. display data
After the chip is powered on and reset, and receives the mode setting command, it begins to receive the constant current value setting command, and then receives the display data. After receiving 48 bits
Afterwards, the DO1 and DO2 ports start forwarding data that continues to be sent from the DIN or FDIN end, providing display data for the next cascaded chip. Forwarding data
Previously, the DO1 and DO2 ports were always at a low level. If the DIN or FDIN terminal inputs a Reset signal, the OUT port of the chip will respond based on the received signal
The 48 bit display data output corresponds to the PWM waveform of the duty cycle, and the chip waits again to receive new data. After receiving the first 48 bits
After the data is transmitted through the DO port, the chip maintains the original outputs of R, G, and B unchanged until it receives the Reset signal.
The chip adopts automatic shaping and forwarding technology, and the signal will not be distorted or attenuated. For all cascaded chips, the data transmission cycle is
coincident.
4.3. Data frame structure
The complete data frame structure is as follows:
| C1 | C2 | C3 | D1 | D2 | ... | Dn | Reset |
• C1/C2: Mode setting command;
• C3Constant current value setting command, 7 bits per channel, a total of 24 bits;
• D1~DnPWM setting commands for each chip, 16 bits per channel, for a total of 48 bits;
• ResetReset signal, low level effective, duration>80μ s.
C1 and C2 are mode setting commands, each containing 24 bits of data. Each chip will receive and forward C1 and C2
0xFFFFF000000 is the normal working mode command, 0xFFFFA_000005 is the DIN working mode command, and 0xFFFF5_00000A is
FDIN working mode command, 0XFFFFF0_00000F is the chip test mode command, C3 is the constant current value setting command, and each chip will receive it
And forward C1, C2, C3.
D1、D2、D3、D4、… … 、 Dn is the PWM setting command for each chip.
Reset indicates a reset signal, low level is valid.
4.4. Constant current and PWM settings
• C3 commandSet three channel output currents for R [6:0], G [6:0], and B [6:0] respectively, with adjustable 127 levels;
• Dn commandSet the three channel PWM duty cycle for R [15:0], G [15:0], and B [15:0] respectively, with adjustable 65536 levels.
The C3 command contains 8× 3-bit data bit, high bit first, R7, G7, B7 are fixed to 0.
R [6:0]: Used to set the constant current value of R output. When R [6:0]=000_0001, it is 2mA, and the full 1 code is 17mA, with adjustable 127 levels.
G [6:0]: Used to set the constant current value of G output. When G [6:0]=000_0001, it is 2mA, and the full 1 code is 17mA, with adjustable 127 levels.
B [6:0]: Used to set the constant current value of B output. When B [6:0]=000_0001, it is 2mA, and the full 1 code is 17mA, with adjustable 127 levels.
(Note that when the current settings of all three channels are all zero codes, it enters low-power mode)
4.5. Dn's data format
BIT47… … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … BIT0
Each PWM setting command contains 16× 3 bits of data, with the higher bits sent first, in the order of RGB.
R [15:0]: Used to set the PWM duty cycle of R output. All 0 codes indicate shutdown, all 1 code indicates maximum duty cycle, and 65536 levels are adjustable.
G [15:0]: Used to set the PWM duty cycle of G output. All 0 codes indicate shutdown, all 1 code indicates maximum duty cycle, and 65536 levels are adjustable.
B [15:0]: Used to set the PWM duty cycle of B output. All 0 codes indicate shutdown, all 1 code indicates maximum duty cycle, and 65536 levels are adjustable.
4.6. standby mode
Enter standby mode (low-power mode), where no additional commands need to be added, only a complete data frame (C1C2) needs to be sent once
Correct) and set C3 to all zeros when writing current. With the reset code, it can enter low-power mode without the need to continuously send standby commands.
When entering low-power mode, the current of the three channels will be turned off, and the DO output will be at a low level; Exiting standby mode is when sending a complete data frame (C1C2)
Correct) Set C3 to the normal current mode, and after receiving data from the current level chip, you can exit the low-power mode.
4.7. Data reception and forwarding
Among them, S1 is the data sent by the Di port of the controller, and S2, S3, S4, and Sn are the data forwarded by the cascaded CXLE87197.
Controller Di Port Data Structure: C1C2C3D1D2D3D4… … Dn；
Controller Fi Port Data Structure: C1C2C3DxD1D2D3… … Dn；
Among them, Dx is any 48 bit data bit, and any one of D1... Dn is a 48 bit display data.
The process of chip cascading and data transmission and forwarding is as follows: the controller sends data S1, chip 1 receives C1, C2, and C3 for verification, and if
If the command is correct, forward C1, C2, and C3 while absorbing D1. If there is no Reset signal at this time, chip 1 will continue to forward the controller
Continue to send data; Chip 2 also receives C1, C2, and C3 for verification. If the command is correct, it forwards C1, C2, and C3 while absorbing
D2， If there is no Reset signal at this time, chip 2 will continue to forward the data sent by chip 1. And so on, until the controller
Send a Reset signal to complete a data refresh cycle, and the chip returns to the receiving preparation state. Reset low level is effective, keep low power
If the average time is greater than 80us, the chip will reset. Among them, Dn-0 represents the high 24 bits of Dn, and Dn-1 represents the low 24 bits of Dn.
5、 Typical Applications and System Design
To prevent the instantaneous high voltage generated by live plugging and unplugging of the product during testing from causing damage to the input and output pins of the chip signal, it should be addressed in the signal input and
Output pin connected in series with 100Ω Protect the resistor. In addition, the 104 decoupling capacitors of each chip in the figure are indispensable, and they are wired to the VDD and GND of the chip
Feet should be as short as possible to achieve the best decoupling effect and stabilize chip operation.
5.2. Refresh rate calculation
Taking a data rate of 1.2MHz as an example, the transmission time per pixel is 40 μ s. If there are 400 pixels in the system, the overall refresh time is 16ms and the refresh rate is about 62.5Hz, which meets most high dynamic display requirements. The specific correspondence is as follows:
| Pixel count | Refresh time (ms) | Refresh rate (Hz) |
|---|---|---|
| 1~400 | sixteen | sixty-two point five |
The data refresh time is calculated based on how many pixels are cascaded in a system, with a set of RGB typically consisting of one pixel (or segment),
A CXLE87197 chip can control a set of RGB.
Calculate according to normal mode:
The 1-bit data period is 830ns (frequency 1.2MHz), and one pixel data includes R (16 bits), G (16 bits), and B (16 bits)
48bit， The transmission time is 830ns× 48≈ 40us. If a system has a total of 400 pixels, the time it takes to refresh all displays at once
For 40us× 400=16ms (ignoring C1, C2, and Reset signal times), which means a one second refresh rate of 1÷ 16ms=62.5Hz。
The following is a table of the highest data refresh rate corresponding to cascading points:
5.3. Low power control
The chip supports instruction and timeout dual-mode standby:
• Command standbySet the current values of the three channels in the C3 command to all 0, and the chip enters low-power mode;
• Timeout standbyIf no data is received for more than 160ms, it will automatically enter standby mode;
• Wake up methodAutomatically wake up upon receiving valid non all 0 data frames.
5.4 Constant current curve
When applying CXLE87197 to LED product design, the current difference between channels and even chips is extremely small. When the load terminal voltage changes
At this time, the stability of its output current is not affected, and the constant current curve is shown in the following figure:
5.5. Internal structure diagram
5.6. Input-output equivalent circuit
6、 Packaging and Size
CXLE87197 adopts a wick integrated package, with a chip size of 400μ m× 555μ m, PAD size of 80× 80μm， Suitable for high integration LED module design. The chip substrate needs to be suspended or grounded to ensure heat dissipation and electrical safety.
6.1. Pin Function
6.2. Internal pin map of chip
1. Chip size: 400um * 555um
2. The thickness of the top aluminum layer of PAD is 3.554um
3. Please note that the substrate of the chip must be suspended or connected to GND
6.3. PAD coordinates
7、 Applicable scenarios
• High density RGB point light source, pixel screen
• LED guardrail tube, contour light strip
• Indoor and outdoor full-color large screens, billboards
• Building facade lighting and curtain wall lighting
• Stage lighting and entertainment lighting system
8、 Conclusion
CXLE87197 demonstrates outstanding comprehensive performance in high-end LED display and decorative lighting fields with its adjustable constant current output, 65536 levels of true grayscale, dual channel cascade architecture, and high-speed communication capability. Whether it is high-precision color reproduction, high refresh rate dynamic display, or high reliability system construction, this chip can provide professional level driving solutions.
If you need to obtain CXLE87197 samples, technical information or application support, please visitJTM-IC official websiteSearch for more information. We are committed to providing high-quality integrated circuit products and system level technical support to global customers, helping your optoelectronic innovation become more competitive.
nineTheSelection Guide for Related Chips; More similar products ....
| 512 protocol series | |||||||
| model | Port withstand voltage | number of channels | communication protocol | Single channel current | Gray level | package form | remark |
| CXLE87133AB | 26V | 1/4 | DMX512 | 3-60mA | two hundred and fifty-six | SOP16 | 512 protocol series, LED decoration driver chip |
| CXLE87133AB3 | 26V | three | DMX512 | 18mA | two hundred and fifty-six | SOP8 | 512 protocol series, LED decoration driver chip |
| CXLE87133AB4 | 26V | four | DMX512 | 18mA | two hundred and fifty-six | EOP8 | 512 protocol series, LED decoration driver chip |
| CXLE87133AC | 30V | four | DMX512 | 3-80mA | sixty-five thousand five hundred and thirty-six | SOP16/SSOP10(18mA) | LED decoration driver chip, Gaohui, 512 protocol series |
| CXLE87133ACE | 30V | three | DMX512 | 3-80mA | sixty-five thousand five hundred and thirty-six | SSOP10 | LED decoration driver chip, Gaohui, 512 protocol series |
| CXLE87133AC4 | 30V | four | DMX512 | 3-80mA | two hundred and fifty-six | SOP16 | LED decoration driver chip, 512 protocol series |
| CXLE87133AD | 30V | 1-4 | DMX512 | 1-64mA | sixty-five thousand five hundred and thirty-six | ESSOP10 | LED decorative driver chip, high current, software configurable, 512 protocol series |
| CXLE87133ADH | 30V | 1-4 | DMX512 | 10-200mA | sixty-five thousand five hundred and thirty-six | ESOP16 | LED decorative driver chip, high current, software configurable, 512 protocol series |
| CXLE87133AE0 | 30V | none | DMX512 | — | — | SOP8 | LED decoration driver chip, adjustable parameters, 512 protocol series |
| CXLE87133AC0 | - | none | DMX512 | — | — | SOP8 | LED decoration driver chip, pure forwarding, 512 protocol series |
| CXLE87133AL1 | 30V | 1-4 | DMX512 | 3-60mA | two hundred and fifty-six | SOP16 | LED decoration driver chip, 512 protocol series |
| CXLE87133BC | 30V | four | DMX512 | 3-80mA | sixty-five thousand five hundred and thirty-six | SOP16/SSOP10(18mA) | LED decoration driver chip, Gaohui, 512 protocol series |
| CXLE87133BCE | 30V | three | DMX512 | 3-80mA | sixty-five thousand five hundred and thirty-six | SSOP10 | LED decoration driver chip, Gaohui, 512 protocol series |
| Single line series | |||||||
| model | Port withstand voltage | number of channels | communication protocol | Single channel current | Gray level | package form | remark |
| CXLE8720four | 7V | none | — | — | — | SOP8 | LED decorative driver chip, single line series |
| CXLE8720five | 24V | three | Return to 0 | 18mA | two hundred and fifty-six | SOP8 | LED decorative driver chip, rainbow internal control, single line series |
| CXLE8720six | 32V | twelve | Returning to 1 | <45mA | two hundred and fifty-six | SOP16 | LED decorative driver chip, constant voltage seven color internal control, single line series |
| CXLE8720seven | 32V | nine | Returning to 1 | <45mA | two hundred and fifty-six | SOP14 | LED decorative driver chip, constant voltage seven color internal control, single line series |
| CXLE87208-12 | 7V | four | Return to 0 | 12mA | two hundred and fifty-six | SOP8/Internal Sealing | LED decorative driver chip, single line series |
| CXLE8720nine | 10V | three | Return to 0 | 12mA | two hundred and fifty-six | Core sealing | LED decorative driver chip, single line series |
| CXLE87210 | 32V | four | Return to 0 | 18mA | two hundred and fifty-six | SOP8 | LED decorative driver chip, single line series |
| CXLE87211B | 32V | four | Returning to 1 | 6.5-38mA | two hundred and fifty-six | SOP8 | LED decorative driver chip, 400KHz, single wire series |
| CXLE87211A | 32V | four | Returning to 1 | 6.5-38mA | two hundred and fifty-six | SOP8 | LED decorative driver chip, 200KHz, single wire series |
| CXLE87144D | 24V | twelve | Return to 0 | 17mA | two hundred and fifty-six | SOP16/DIP16 | LED decorative driver chip, single line series |
| CXLE87140H | 24V | three | Return to 0 | 14mA | two hundred and fifty-six | SOP8 | LED decorative driver chip, single line series |
| CXLE87132B | 32V | four | Returning to 1 | 6.5-38mA | two hundred and fifty-six | SOP8 | LED decorative driver chip, single line series |
| CXLE87143D | 24V | 6 or 9 | Return to 0 | 17mA | two hundred and fifty-six | SOP14/DIP14 | LED decorative driver chip, single line series |
| CXLE8714four | 24V | twelve | Returning to 1 | 20mA | two hundred and fifty-six | SOP16/DIP16 | LED decorative driver chip, rainbow internal control, single line series |
| CXLE8714three | 30V | nine | Returning to 1 | 20mA | two hundred and fifty-six | SOP14/DIP14 | LED decorative driver chip, rainbow internal control, single line series |
| CXLE87140 | 24V | three | Returning to 1 | 18mA | two hundred and fifty-six | SOP8/MSOP8 | LED decorative driver chip, rainbow internal control, single line series |
| CXLE8713two | 32V | four | Returning to 1 | 6.5-38mA | two hundred and fifty-six | SOP8 | LED decorative driver chip, rainbow internal control, single line series |
| CXLE8714seven | 24V | twelve | Return to 0 | <45mA | two hundred and fifty-six | SOP16/DIP16 | LED decorative driver chip, constant voltage, single wire series |
| CXLE8714five | 24V | nine | Return to 0 | <45mA | two hundred and fifty-six | SOP14/DIP14 | LED decorative driver chip, constant voltage, single wire series |
| CXLE87152 | 24V | three | Return to 0 | <45mA | two hundred and fifty-six | SOP8/DIP8 | LED decorative driver chip, constant voltage, single wire series |
| CXLE87151 | 24V | three | Return to 0 | <45mA | two hundred and fifty-six | SOP8/DIP8 | LED decorative driver chip, constant voltage, 400KHz, constant voltage, single wire series |
| Constant current diode | |||||||
| model | Port withstand voltage | number of channels | communication protocol | Single channel current | Gray level | package form | remark |
| CXLE87182-X | 24V | one | — | 10-18-30-60mA | External PWM | SOT-23/TO-92/SOD-123 | LED decorative driver chip, minimum 2.2V, constant current diode |
| CXLE87183-X | 24V | one | — | 5-65mA,+5mA per gear | External PWM | SOT23-3/SOT-89 | LED decorative driver chip, constant current diode |
| CXLE8718four | 24V | one | — | 15-350mA | External PWM | SOT23-6/ESOP8 | LED decorative driver chip, constant current diode |
| CXLE87185-X | 40V | one | — | 10～45mA | External PWM | SOT23-3 | LED decorative driver chip, constant current diode |
| Meteor lights Christmas lights | |||||||
| model | Port withstand voltage | number of channels | communication protocol | Single channel current | Gray level | package form | remark |
| CXLE8718six | 7V | six | internal control | Maximum 80mA | — | SOP8 | LED decoration driver chip, meteor effect, meteor light Christmas light |
| CXLE8718seven | 24V | sixteen | Internal/External Control | 32mA | — | SOP20/DIP20 | LED decoration driver chip, meteor light Christmas light |
| CXLE8718eight | 24V | sixteen | Internal/External Control | 16mA | — | SOP20/DIP20 | LED decoration driver chip, meteor light Christmas light |
| CXLE8714eight | 24V | six | internal control | 45, maximum 90mA | — | SOP8/DIP8 | LED decoration driver chip, meteor light Christmas light |
| CXLE8714nine | - | two | internal control | — | — | SOP8 | LED decoration driver chip, meteor light Christmas light |
| CXLE8713seven | 24V | twelve | Internal/External Control | 32mA | — | SOP16/DIP16 | LED decoration driver chip, meteor light Christmas light |
| CXLE8713six | 24V | twelve | Internal/External Control | 16mA | — | SOP16/DIP16 | LED decoration driver chip, meteor light Christmas light |
| CXLE87150 | 24V | twelve | internal control | 45, maximum 90mA | Level 16 | SOP16/DIP16 | LED decoration driver chip, meteor light Christmas light |
| CXLE87153 | 24V | three | Internal/External Control | 82mA | — | SOP8/DIP8 | LED decoration driver chip, meteor light Christmas light |
| Double line series | |||||||
| model | Port withstand voltage | number of channels | communication protocol | Single channel current | Gray level | package form | remark |
| CXLE8718nine | 7V | three | Return to 0 | 2-25mA | 65536 Gamma | Core sealing | LED decoration driver chip, 8-bit, meteor light Christmas light |
| CXLE87190 | VDDV | eighteen | I2C | 3-40mA | one hundred and twenty-eight | QSOP24/QFN24 | LED decoration driver chip, meteor light Christmas light |
| CXLE8719one | VDDV | eighteen | I2C | 38mA | two hundred and fifty-six | QFN24/SOP24 | LED decoration driver chip, meteor light Christmas light |
| CXLE8719two | 24V | three | Return to 0 | 14mA | two hundred and fifty-six | SOP8 | LED decoration driver chip, meteor light Christmas light |
| CXLE8719three | 7V | three | Return to 0 | 12mA | sixty-five thousand five hundred and thirty-six | SOP8 | LED decoration driver chip, meteor light Christmas light |
| CXLE8719four | 7V | three | Return to 0 | 12mA | sixty-five thousand five hundred and thirty-six | Core sealing | LED decoration driver chip, meteor light Christmas light |
| CXLE8719five | 7V | three | Return to 0 | 12mA | sixty-five thousand five hundred and thirty-six | Core sealing | LED decoration driver chip, meteor light Christmas light |
| CXLE8719six | 7V | three | Return to 0 | 0.73-12mA | sixty-five thousand five hundred and thirty-six | Core sealing | LED decoration driver chip, 16 bit, meteor light Christmas light |
| CXLE8719seven | 7V | three | Return to 0 | 2-17mA | sixty-five thousand five hundred and thirty-six | Core sealing | LED decoration driver chip, 16 bit, meteor light Christmas light |
| CXLE8719eight | 12V | three | Return to 0 | 12mA | four thousand and ninety-six | SOP8、 Inverted and integrated wick packaging | LED decoration driver chip, low-power mode, meteor light Christmas light |
| CXLE8719nine | 7V | three | Return to 0 | 12mA | four thousand and ninety-six | Inverted and integrated wick | LED decoration driver chip, low-power mode, meteor light Christmas light |
| CXLE87200 | 7V | three | Return to 0 | 2.5mA | four thousand and ninety-six | Inverted and integrated wick | LED decoration driver chip, low-power mode, meteor light Christmas light |
| CXLE8720one | 7V | three | Return to 0 | 5mA | four thousand and ninety-six | Inverted and integrated wick | LED decoration driver chip, low-power mode, meteor light Christmas light |
| CXLE8720two | 12V | three | Return to 0 | 12mA | four thousand and ninety-six | SOP8、 Inverted and integrated wick packaging | LED decoration driver chip, low-power mode, meteor light Christmas light |
| CXLE8720three | 12V | three | Return to 0 | 12mA | four thousand and ninety-six | SOP8、 Inverted and integrated wick packaging | LED decoration driver chip, low-power mode, meteor light Christmas light |
| CXLE87141A | 24V | three | Returning to 1 | 18mA | two hundred and fifty-six | SOP8 | LED decoration driver chip, meteor light Christmas light |
