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ST890BDR Datasheet(PDF) 3 Page - STMicroelectronics |
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ST890BDR Datasheet(HTML) 3 Page - STMicroelectronics |
3 / 7 page ST890 3/7 ELECTRICAL CHARACTERISTICS (VIN=3V, TA =TMIN to TMAX, unless otherwise specified. Typical values are at TA =25 °C) TIMINGL CHARACTERISTICS (VIN=3V, TA =TMIN to TMAX, unless otherwise specified. Typical values are at TA =25 °C) Symbol Parameter Test Conditions Min. Typ. Max. Unit VI Operating Voltage ID =1mA 2.7 5.5 V ICC ON Quiescent Supply Current VI =5V, ON=GND IO =0 13 25 µA I(CCOFF) OFF Quiescent Supply Current ON=IN VI =VOUT =5.5V 1 µA ON=IN VI = 5.5V VO =0 5 VULO Undervoltage Lockout Rising Edge 2.0 2.4 2.6 V VHYST Undervoltage Lockout Hysteresys 100 mV RON ON Resistance VI = 4.5V 75 120 m Ω VI =3V 90 130 VSET Reference Voltage to Turns The Switch OFF IO =100mA VSET rised until VI -VO > 0.8V 1.178 1.24 1.302 V IMAX Maximum Output Current Limit 1.2 A ISC Short Circuit Current Limit 1.2 ILIM A IO/ISET IO to ISET Current Ratio IO =500mA VO > 1.6V 970 1110 1300 VIL ON Input Low Level Voltage VI = 2.7 to 5.5V 0.8 V VIH ON Input High Level Voltage VI = 2.7 to 3.6V 2.0 V VI = 4.5 to 5.5V 2.4 II ON Input Leakage Current VI = 5.5V 1 µA ISET ISET Bias Current VSET = 1.24V IO =0A VI =VO 0.5 3 µA VOL FAULT Output Low Voltage ISINK =1mA VSET = 1.4V 0.15 V IOH FAULT Output High Voltage VFAULT =5.5V VSET =1V 1 µA TPROT Thermal Protection 130 °C THYST Thermal Hysteresys 15 °C Symbol Parameter Test Conditions Min. Typ. Max. Unit tRESP Slow Current Loop Response Time 20% Current Overdrive, VCC =5V 5 µs Fast Current Loop Response Time 2 µs tON Turn ON Time VI =5V, IO =500mA 25 50 µs VI =3V, IO =500mA 50 tOFF Turn OFF Time VI =5V 1 2 10 µs |
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