WS2811数据手册WS2811__V1.4_EN_18112019092521.pdf是ws281

文件名称: WS2811数据手册

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详细说明：WS2811__V1.4_EN_18112019092521.pdf是ws2811数据手册wS2811 Worldsemi Signal line 256 gray level 3 channel Constant current led driver ic Electrical Characteristics (TA=-20+70oC, VDD=4.5-5.5V, Vss=oV, unless otherwise specified) Parameter Symbol Min Tpy Max Unit Conditions R/G/B Low voltage oulpul 15.5 16.5 17.5 mA current Low voltage output current 10 mA Vo=0. 4V, dOuT Input current I1 A IH 0.7VDD DIN, SET Input voltage level IL 0.3 VDD DIN, SET Hysteresis voltage VH 0.35 V DIN, SET Switching characteristics(TA-20-+70oC, VDD=4.5-5.5V, Vss=oV, unless otherwise specified) Parameter Symbol Min Tpy Max Unit Condition Oscillation frcqucncy 800 KHZ Transmission delay time PLZ 300 ns CL=15pF, DIN-DOUT, RL=loKQ2 Fall time TTLIZ 120 us CL=300pF, OUTR/OUTG/OUTB Data transmission rate F MAX 600 Kbps duty ratio 50% Input capacity C 15 Data transfer time TOH 0 code, high voltage time 220ns~380ns TIH 1 codc. high voltage timc 580ns-lus TOL 0 code, low voltage time 58Ons-lus TIL I code, low voltage time S8Ons lus RES Frame unit. low voltage time 280u /8 V1.4 http://www.world-semi.com wS2811 Worldsemi Signal line 256 gray level 3 channel Constant current led driver ic Sequence Chart Cascade method o码 TOI DI 2I D3I D4 TOH DIN DO DIN DO DIN DO 1码 TlI IC 1IC2IC 3 TIH Reset RESET码 Data Transmission method RESET RESET Data refresh cycle Data refresh cycle 280ps frst 24bt second 24bit third 24 bit n 24bit 25602b「td24二卫2址 second24bit third 24bit_n_24bit ec0nd24 bi third 224d二n24 third 24 bit n 24bit third 24bit n 24bit n 24bt Note: The data of Di is send by mCU, and d2, D3, D4 through IC internal reshaping amplification to transmit Composition of 24bit Data R7 R6 R5 R4 R3 R2 RI RO G7 G6 G5 G4 G3 G2 G1 GO B7 B6 B5 B4 B3 B2 BIBO Note: Data transmit in order of rgb high bit data at first 4/8 V1.4 http://www.world-semi.com wS2811 Worldsemi Signal line 256 gray level 3 channel Constant current led driver ic Typical Application Circuit 1. Supply voltage=5V, I LED for each channel and Constant Current driving of 165mA R1 Ws2811 WS2811 1W981 DO LGN DO ND D GND GND Fig 1 This driving mode use constant current output, the advantage of is the LED can retain luminance and color temperature when the power supply lessen. We require, in order to prevent power spikes phenomenon and power reverse polarity, series with a resistor less than 100ohm connected with the power supply pin(VDD). The capacitance 104 as bypass capacitor. To prevent the reflection and hot-swap protection, we suggest to connect a 33ohm resistor at the data input or output port for Impedance 2. Supply voltage=12V, 3 LED for each channel and Constant Current driving of 165mA DC-12 VDD-12V 子￥ E RI RR WS2811 Ws2811 WS2911 GN≥Do ND D ND DO Fig 2 The same as the front mode, it is also use constant current output. In this circuit, rI is used as the ic internal Ldo divider resistance and the value is 2. 7K. The capacitance 104 as bypass capacitor. To prevent the reflection and hot-swap protection, we suggest to connect a 33ohm resistor at the data input or output port for impedance At the Outr port we should add a divider resistance rr. The value of rr can be derived by the following equation RP=12-3VLEDR 16.5KΩ VLEDR is the red led forward conduction voltage drop 5/8 V14 http://www.world-semi.com wS2811 Worldsemi Signal line 256 gray level 3 channel Constant current led driver ic Package information ●SOP8 Package 日日」日日 Dimensions in millimeters Dimensions in inches mbol Min Max Min Ma 1.350 1.750 0.05 0.069 A 0.100 0.250 0.004 0.010 A2 1.350 1.550 0.053 0.061 0.330 0.510 0.013 0.020 0.170 0.250 0.006 0.010 D 4.700 5.100 0.185 0.200 E 3.800 4.000 0.150 0.157 El 5800 6.200 0.228 0.244 270 0.050 0.400 1.270 0.016 0.050 6/8 V14 http://www.world-semi.com wS2811 Worldsemi Signal line 256 gray level 3 channel Constant current led driver ic ● MsoP8 Package Symbol Dimensions In Millimeters Dimensions In Inches M ax Min Hax A 0.820 1.100 0.032 0.043 0.001 0.006 2 0.750 0.950 0.030 0.037 0.250 0.380 0.010 0015 0.090 0.230 0.004 0.009 900 3.100 114 0650(BSC 0.026(BSC) E 900 3.100 0.114 0.122 E1 4.750 5.050 0.187 0.199 0.400 0.800 0.016 0.031 0 6 7/8 V14 http://www.world-semi.com wS2811 Worldsemi Signal line 256 gray level 3 channel Constant current led driver ic Modify Records Ⅴ ersion ne status bar Modify Content Summary Date Reviser Approved V1.0 New 20170523 Shen Jin Guo Yin Hua Ping V1.1 N Absolute maximum Ratings 20171009 Shcn Jin Guo Yin HuaPing V1.2 Switching characteristics 20171108 Shen Jin Guo Yin HuaPing V13 Maximum ratings, Data transfcr timc, 20182207 Shen Jin Guo Yin HuaPing Main feature, General description V1.4 Logical Input Voltage, TIL timing 20180910 Shen Jin Guo Yin HuaPing Remarks: Initial version: V1.0: Version number plus0 1 " after each revision Status bar: N--Ncw. A--Add. M--Modify. d--Dclctc 8/8 V14 http://www.world-semi.com

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