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E-L293DD 데이터시트(PDF) 5 Page - STMicroelectronics |
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E-L293DD 데이터시트(HTML) 5 Page - STMicroelectronics |
5 / 17 page L5973D Electrical characteristics 5/17 3 Electrical characteristics Table 4. Electrical characteristics ( TJ = 25 °C, VCC = 12 V, unless otherwise specified) Symbol Parameter Test condition Min Typ Max Unit VCC Operating input voltage range Vo = 1.235 V; Io = 2 A (1) 436 V RDS(on) Mosfet on Resistance (1) 0.250 0.5 Ω Il Maximum limiting current VCC = 4.4 V to 36 V 2.5 3 3.5 A fs Switching frequency (1) 212 250 280 kHz 225 250 275 kHz Duty cycle 0 100 % Dynamic characteristics (see test circuit ). V5 Voltage feedback 4.4 V < VCC < 36 V, 20 mA < IO < 2 A 1.220 1.235 1.25 V (1) 1.198 1.235 1.272 V h Efficiency VO = 5 V, VCC = 12 V 90 % DC characteristics Iqop Total operating quiescent current (1) 35 mA Iq Quiescent current Duty Cycle = 0; VFB = 1.5 V 2.5 mA Iqst-by Total stand-by quiescent current Vinh > 2.2 V (1) 50 100 µA VCC = 36 V; Vinh > 2.2 V (1) 80 150 µA Inhibit INH threshold voltage Device ON 0.8 V Device OFF 2.2 V Error amplfier VOH High level output voltage VFB = 1 V 3.5 V VOL Low level output voltage VFB = 1.5 V 0.4 V Io source Source output current VCOMP = 1.9 V; VFB = 1 V 200 300 µA Io sink Sink output current VCOMP = 1.9 V; VFB = 1.5 V 11.5 mA |
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