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WS2803 датащи(PDF) 2 Page - WORLDSEMI CO., LIMITED |
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WS2803 датащи(HTML) 2 Page - WORLDSEMI CO., LIMITED |
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2 / 8 page ![]() Preliminary WS2803 18-Channel Constant Current LED Driver With Programmable PWM Outputs 2/8 WS-Preliminary-V0.1 http://www.world-semi.com Electrical Characteristics (VCC=5V, TA= 25 , unless otherwise specified.) ℃ Parameter Symbol Conditions Min Typ Max Units Power Supply Voltage Range VCC 3.3 -- 5.5 V Output Voltage VOUT IOUT=1uA -0.3 -- 40 V IoutH Constant Current Output 5 -- 30 mA IoutL Output Cut Off, VOUT=30V -- 0.1 1 uA ISOURCE Other Output -- 1 -- mA Output Current ISINK Other Output -- -1 -- mA Standby Supply Current ISTB B IREF floating -- 1 1.5 mA Minimum Constant Current Output Time IOH VIN=VIH or VIL, IOUT=20mA -- 14 -- uS PIN:CKI,SDI VIN=VDD or GND -- -- ±1 uA Input Current IIN PIN:LIN VIN=VDD or GND -- ±10 ±20 uA VIH 0.8*VDD -- VDD V Input Voltage Level VIL TA=-40~125℃ GND -- 0.2*VDD V Output Current vs. Output Voltage Regulation %dVOUT IREF=700Ω, @20mA -- ±0.1 -- %/V Output Current Line Regulation %dVCC VCC = 4 ~ 5.5V,VOUT between 1.0V and 3.0V -- ±0.1 -- %/V Pull LOW Resistance RINLOW RLIN, -- 30 -- KΩ Switching Characteristics (VCC=5V, TA=25℃) Parameter Symbol Conditions Min Typ Max Units Propagation Delay (‘L’ to ‘H’) CKI-to-CKO TpLH -- 12 -- ns Propagation Delay (‘L’ to ‘H’) CKI-to-CKO TpHL -- 13.2 -- ns Output Current Rise Time Tor -- 50 -- ns Maximum Turn ON and OFF time of Drive Current Tof -- 50 -- ns Output Current Propagation ① TOP VIH=VCC VIL=GND RXFBs=30 RL=180Ω CL=30pF -- -- 3.3 mS Switching Characteristics (VCC=3.3V, TA=25℃) Parameter Symbol Conditions Min Typ Max Units Propagation Delay (‘L’ to ‘H’) CKI-to-CKO TpLH -- 24 -- ns Propagation Delay (‘L’ to ‘H’) CKI-to-CKO TpHL -- 28 -- ns Output Current Rise Time Tor -- 50 -- Output Current Fall Time Tof -- 50 -- ns Output Current Propagation ① TOP VIH=VCC VIL=GND RXFBs=30Ω RL=180Ω CL=30pF -- -- 3.3 mS |
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