WS2813-MINI(WS2813-3535)

WS2813-Mini Intelligent control LED integrated light source Features and Benefits           The control circuit and RGB chip are integrated in a 3535 components, to form an external control pixel. Intelligent Reverse-connection protection. Using the built-in signal reshaping circuit to achieve the signal waveform shaping, and no distortion of waveform of signal takes place. The gray levels of each pixel are of 256 levels, which achieves “256*256*256=16777216” full-color display, and the refresh frequency reaches to 2KHz. Serial cascade interface, data receiving and decoding depend on just one signal line. Dual-signal wires version, signal break-point continuous transmission. Any two point the distance more than 5M transmission signal without any increase circuit. When the refresh rate is 30fps, cascade number is at least 1024 pixels. Data transmitting at speeds of up to 800Kbps. Good color consistency reliability, high cost-effective. Applications   Guardrail tube series, point light display series, flexible/rigid strips series, module series applications. Lighting stage costumes, innovative gadgets or any other electronic products. General description WS2813-Mini is an intelligent control LED light source that the control circuit and RGB chip are integrated in a package of 3535 components. Its internal include intelligent digital port data latch and signal reshaping amplification drive circuit. Also include a precision internal oscillator and a 12V voltage programmable constant current control part, which achieves highly consistent color effect. Dual-signal wires version, any pixel’s failure won't affect signal transfer and total emitting effect. The data transfer protocol use single NZR communication mode. After the pixel power-on reset, the DIN port receive data from controller, the first pixel collect initial 24bit data then sent to the internal data latch, the other data which reshaping by the internal signal reshaping amplification circuit sent to the next cascade pixel through the DO port. After transmission for each pixel, the signal to reduce 24bit. Every pixel adopts auto-reshaping transmit technology, making the pixel cascade numbers are not limited to the signal transmission, only relate to the speed of signal transmission. The BIN receives the data signal, and then compare the data with the DIN side after phagocytosis of 24bit data, if DIN do NOT receive the signal, then switching to BIN for receiving the input signal, which ensure that any the IC's damage does not affect the signal cascade transmission and make the BIN in state of receiving signal until restart after power-off. Refresh Frequency updates to 2KHz, Low Frame Frequency and no Flicker appear in HD Video Camera. RESET time>280μs, it won’t cause wrong reset while interruption, it supports the lower frequency and inexpensive MCU. 1/8 http://www.world-semi.com WS2813-Mini Intelligent control LED integrated light source Mechanical Dimensions PIN Configuration PIN Function NO. Symbol PIN Function description 1 VCC VCC In PCB layout, it connected with VDD or Resistor 2 VDD VDD LED POWER SUPPLY, connect to “+5V” 3 DO DO Control data signal output 4 DIN DIN Control data signal input 5 GND GND Data & Power Grounding 6 BIN BIN Backup Control data signal input Absolute Maximum Ratings Parameter Symbol Ratings Unit Power supply voltage VDD +3.7~+5.3 V Logical Input Voltage VI VDD-0.5～VDD+0.5 V Operating Temperature Topt -25～+85 ℃ Storage Temperature Tstg -40~+105 ℃ 2/8 http://www.world-semi.com WS2813-Mini Intelligent control LED integrated light source Electrical Characteristics (TA=-20～+70℃, VDD=4.5～5.5V, VSS=0V) Parameter Symbol Min. Tpy. Max. Unit Conditions Input Current II —— —— ±1 µA VI=VDD/VSS High-level Input VIH 0.7VDD —— —— V DIN, SET Low-level Input VIL —— —— 0.3 VDD V DIN, SET Hysteresis voltage VH —— 0.35 —— V DIN, SET Switching Characteristics (TA=-20～+70℃, VDD=4.5～5.5V, VSS=0V) Parameter Symbol Condition Min Tpy Max Unit Transmission Delay Time tPLZ CL=15pF, DIN→DOUT, RL=10KΩ —— —— 300 ns Fall time tTHZ —— —— 120 µs Input-capacitance CI —— —— 15 pF CL=300pF, OUTR/OUTG/OUTB —— LED Characteristics Ref. Value Quiescent Current 0.7mA RGB Channel Constant Current 16mA RED Brightness (Central Value) 360mcd GREEN Brightness (Central Value) 1150mcd BLUE Brightness (Central Value) 220mcd WHITE Brightness (Central Value) 1710mcd RED Wavelength 620-625nm GREEN Wavelength 515-525nm BLUE Wavelength 465-475nm Data Transfer Time T0H 0-code, High-level time 220ns~380ns T1H 1-code, High-level time 580ns~1.6µs T0L 0-code, Low-level time 580ns~1.6µs T1L 1-code, Low-level time 220ns~420ns RES Frame unit, Low-level time > 280µs 3/8 http://www.world-semi.com WS2813-Mini Intelligent control LED integrated light source Sequence chart 0 code Cascade method T0L T0H D1 T1L 1 code T1H DIN DO PIX1 Treset RET code D2 DIN DO D3 PIX2 DIN DO D4 PIX3 Data Transmission Method Note: D1 is the data from MCU, and D2, D3, D4 are from Cascade Circuits. Composition of 24bit data G7 G6 G5 G4 G3 G2 G1 G0 R7 R6 R5 R4 R3 R2 R1 R0 B7 B6 B5 B4 B3 B2 B1 B0 Note: Data transmit in order of GRB, high bit data is first. Typical application circuit Remarks: Rx is the IC’s protective resistor, power spike and reverse connection of the battery power terminal, will be protected, its range of 100R~300R. VCC & VDD are connected together without use of protective resistors. C1 is external filter capacitor, its value of 100NF. The LED also works without the external filter capacitor because it has filter capacitor built-inside. 4/8 http://www.world-semi.com WS2813-Mini Intelligent control LED integrated light source Lead-free Reflow Instructions/SMT Curve Description Lead-free Reflow Solder/SMT The lowest preheat temperature (Tsmin) 150℃ The highest preheat temperature (Tsmax) 200℃ Preheating time (Tsmin to Tsmax) (ts) 60-180 S Average rate of temperature rise (Tsmax to Tp)