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TS19377CSRLG Datasheet(PDF) 2 Page - Taiwan Semiconductor Company, Ltd |
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TS19377CSRLG Datasheet(HTML) 2 Page - Taiwan Semiconductor Company, Ltd |
2 / 7 page TS19377 2A Buck (Step-down) WLED Driver 2/7 Version: A11 Absolute Maximum Rating Parameter Symbol Limit Unit VCC Pin Voltage VCC VSS - 0.3 to VSS + 25 V Feedback Pin Voltage VFB VSS - 0.3 to VCC V ON/OFF Pin Voltage VEN VSS - 0.3 to VCC + 0.3 V Switch Pin Voltage VSW VSS - 0.3 to VCC + 0.3 V Power Dissipation PD Internally limited mW Storage Temperature Range TST -40 to +150 °C Operating Temperature Range TOP -40 to +125 °C Operating Supply Voltage VOP +3.6 to +23 V Thermal Resistance from Junction to case θ JC 25 °C/W Electrical Specifications (VIN=12V, TA =25 oC, unless otherwise noted) Parameter Symbol Conditions Min Typ Max Units Feedback Voltage VFB IOUT=0.2A 0.24 0.25 0.26 V Quiescent Current ICCQ VFB=1.2V force driver off -- 3 5 mA Feedback Bias Current IFB IOUT=0.1A -- 0.1 0.5 uA Shutdown Supply Current ISD VEN =0V -- 2 10 uA Switch Current ISW 2.5 -- -- A Line Regulation △VOUT/VOUT VCC=5V~23V, IOUT=0.2A -- 1 2 % Load Regulation △VOUT/VOUT IOUT=0.1 to 2A -- 0.2 0.5 % Oscillation Frequency FOSC 260 330 400 KHz EN Pin Logic input threshold voltage VSH High (regulator ON) 2.0 -- -- V VSL Low (regulator OFF) -- -- 0.8 EN Pin Input Current ISH VEN=2.5V (ON) -- 20 -- uA ISL VEN=0.3V (OFF) -- -10 -- uA Internal MOSFET RDSON RDSON VCC=5V, VFB=0V -- 100 140 m VCC=12V, VFB=0V -- 70 100 Efficiency EFFI VOUT = 5V IOUT=1A -- 91 -- % IOUT=2A -- 91 -- Thermal shutdown Temp TSD -- 140 -- °C |
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