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R5973ADTR Datasheet(PDF) 6 Page - STMicroelectronics |
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R5973ADTR Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 38 page Electrical characteristics R5973AD 6/38 DocID027027 Rev 1 3 Electrical characteristics TJ = -40 °C to 125 °C, VCC = 12 V, unless otherwise specified. Table 4. Electrical characteristics Symbol Parameter Test condition Min. Typ. Max. Unit VCC Operating input voltage range 4 36 V RDS(on) MOSFET on resistance 0.250 0.5 IL Maximum limiting current(1) VCC = 5 V 1.8 2.3 A VCC = 5 V, TJ = 25 °C 2 2.3 fSW Switching frequency 425 500 575 kHz Duty cycle 0 100 % Dynamic characteristics V5 Voltage feedback 4.4 V < VCC < 36 V 1.198 1.235 1.272 V h Efficiency V0 = 5 V, VCC = 12 V 90 % DC characteristics Iqop Total operating quiescent current 57 mA Iq Quiescent current Duty cycle = 0; VFB = 1.5 V 2.7 mA Iqst-by Total standby quiescent current Vinh > 2.2 V 50 100 A Inhibit INH threshold voltage Device ON 0.8 V Device OFF 2.2 V Error amplifier 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 190 300 A Io sink Sink output current VCOMP = 1.9 V; VFB = 1.5 V 1 1.5 mA Ib Source bias current 2.5 4 A DC open loop gain RL = 50 57 dB gm Transconductance ICOMP = -0.1 mA to 0.1 mA; VCOMP = 1.9 V 2.3 mS Synch function High input voltage VCC = 4.4 to 36 V 2.5 VREF V Low input voltage VCC = 4.4 to 36 V 0.74 V Slave synch current(2) Vsynch = 0.74 V, Vsynch = 2.33 V 0.11 0.21 0.25 0.45 mA |
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