"Public board" and "Low cost breathing light" solutions based on mobile phone backlight drive

Label: LED PCB

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Based on the BCT3220/BCT3221, it can simultaneously support the characteristics of the common anode parallel display and the common cathode parallel display, and introduces the backlight drive "public board" and "low cost breathing light" solutions to mobile phone customers.

By using the BCT3221/3220 to support the characteristics of the common cathode and the common anode connecting LED, the customer can not need to consider the connection mode of the LCM when developing the PCB, and only need to adjust the resistance of the resistors R1 and R2 in the process of producing the patch. You can adapt to different screens. In this way, no matter what screen is used in a project, only one PCBA board is designed, which greatly improves the versatility of the backlight driving chip and the screen, and is convenient for customers to stock up and effectively prevent a certain screen from being out of stock.

At the same time, this feature can also be used to achieve the industry's lowest cost breathing light solution with a unique contrast breathing effect.

As shown in the figure, if you use the common screen A, you can set R1=0ohm/R2 NC; if you use the common screen B, you can set R1 NC /R2=0ohm.

As shown in the figure, the breathing light effect, SEL pin input PWM (above 300Hz), from 0 to 100%

The gradual increase of the air ratio, the A group of lights from bright to gradually dark, the B group of lights from dark to gradually bright; conversely, from 100% duty cycle to 0 gradually decreasing, to achieve A group of lights from dark to gradually bright, B The group lamp is turned from dark to dark; the SEL pin inputs PWM (<24Hz) to realize the blink function of the group A group B (lighting off).

30W Led Track Lights with Bridgelux or Luminus COB LED chips.

30W LED Track Lights with international 2 wire, 3 wire, 4 wire track connector, matching well with most of quality track rail.

CCT: 2700K, 3000K, 4000K, 6000K are available.

Function: Non-dimmable, dimmable and CCT changeable are available.

Types: DALI system, 0-10V systerm, Dial Switch, guide rail with power supply.

Beam Angle: High reflectance diffuser (Lens+Reflector) with 10Â° / 24Â°/ 36Â° for choice.

Dimension of 30W LED Track Lights: Î¦90mm, 230*210mm

Finished Color: Matt White / Black / Silver etc.

High luminance flux: 2600lm

High CRI: >90Ra

Input voltage: AC110/220V 50/60Hz

Certification: CE RoHS