APA107 LED Chips RGB Pixel Replace APA102/APA102C
APA107 LED Chip is a real product which can replace APA102/APA102C exactly, have many China factory and trade company use SK9822 to pretend APA107.
What is APA107?
APA107 LED Chips is upgraded type of APA102/APA102C, which is a type ic for the three-color RGB Diming control strip and string ,This ic using the CMOS process to provide three-color RGB LED output driver to adjust the output with 256 gray scale and 32 brightness adjustment, APA with 2 signal output way, one is clock ,another is data, the clock and data is synchronizated,so that the crystal cascade piece of output movement is sychronizated. .
Features:
- CMOS process,low voltage ,low consumption
- Synchronization of two-lane
- Choose positive output or negative RGB three-color LED output
- 8 bit(256 level) color set ,5bit(32 level) brightness adjustment
- Build-20ma constant current output
- With self-detection signal build in support for continuous oscillation PWM
- output ,can be maintained static screen
Application:
- LED lamp
- Flex LED Strip, rigid led lights, led pixel module
- LED billboard LED screen
Specification:
- 3ch integrated RGB SMD LED
- Working Voltage:DC5V
- Size:5.0*5.0*1.6mm
- Signal:Double line signal transmission
- clock and data is synchronized
- Current 20ma per chip,60mA total.
- Beam angle: 120 degree.
- Wattage:0.2-0.3W
- Dimming Color:Digital RGB
The difference of APA102, APA107,HD107s and SK9822?
APA102: 20+ kHz PWM, transmission rate 20MHZ
APA107: 9 kHz PWM, transmission rate 30MHZ
HD107s: 26+ kHz PWM (the upgrade of APA107), transmission rate 40MHZ
SK9822: 4.7 kHz PWM, transmission rate 15MHZ
In conclusions, APA107/HD107s is one real product which can replace APA102.
The most common pixel chips:
- SK6812: A 1-wire interface chipset, integrated directly into either an SMD5050 or 8-12mm through-hole LED. Typically the cheapest option, but slow data and PWM rate. There are many variants that all use the same protocol.
- WS2812: like SK6812
- SK6813/WS2813: The 6 pin variant of the SMD5050 package (which originally came with 6 pins as the SK6812).
- WS2811: Bare-IC variant typically used for Christmas style lights and 12V strips (3 RGB LEDs per IC)
- WS2811 400kHz: Original version of the chipset that runs at 400kHz, unlike all newer versions that run at 800kHz. You must use LED TYPE.WS2811_400 when using this variant. These are rare now.
- APA107: Our current favorite and “New Kid on the Block”. The chipset is integrated into an SMD5050 LED like the WS2812 but uses a 2-wire interface instead and supports up to 30Mbps and a whopping 9kHz PWM rate. Newstar’s patent design.
- HD107s: the upgrade of APA107, with PWM refresh rate of +26 kHz.
- LPD8806: Oldie but still a goody, this chipset is a 2 wire interface that can manage 20Mbps and high PWM rate. The downsides are that each IC controls 2 LEDs and it only has 7 bits per channel instead of 8 so it can only handle 1/8th as many colors.
- WS2801: Mid-price, 2-wire interface with great 8-bit per channel color but only 1Mbps data rate and decent, 2.5kHz, PWM rate.
Pins:
V+: Power output. Typically 5V but up to 12V supported for LEDs that require it. Required if powering via USB or the onboard power jack. But can be left disconnected if power is connected elsewhere.
GND: Common ground. Even if not using USB or the power jack on the AllPixel for power, this connection is required so that the DATA and CLK pins have a ground reference.
CLK: The clock pin for chipsets that require clocked data. Refer to the table below to know if your chipset requires it.
DATA: The pixel data output pin and required by all chipsets.
Basically, all chipsets will either have 3 or 4 connections. 2 are always for ground and power. If there are 3 total wires, only DATA is required but if there are 4 wires, both DATA and CLK are required.
