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ST890B Fiches technique(PDF) 7 Page - STMicroelectronics |
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ST890B Fiches technique(HTML) 7 Page - STMicroelectronics |
7 / 17 page ST890B, ST890C, ST890D Maximum rating 7/17 VULO Undervoltage lockout Rising edge 2.0 2.4 2.6 V VHYST Undervoltage lockout hysteresis 100 mV RON ON resistance VI = 4.5 V 75 120 m Ω VI = 3 V 90 130 m Ω VSET Reference voltage to turn the switch OFF IO = 100 mA VSET rise until VI -VO > 0.8V 1.178 1.24 1.302 V IMAX Maximum programmable output over current limit 1.2 A ISC Short circuit current limit VI = 5V, OUT connected to GND, device enabled into short circuit 1.2 ILIM 1.5 ILIM A ILIM/ISET ILIM to ISET current ratio IO =500 mA VO >1.6 V 970 1110 1300 VIL ON input low level voltage VI = 2.7 to 5.5 V 0.8 V VIH ON input high level voltage VI = 2.7 to 3.6 V 2.0 V VI = 2.7 to 5.5 V 2.4 V II ON input leakage current VI =5.5 V 1 μA ISET bias ISET bias current VSET =1.24 V IO =0A VI =VO 0.5 3 μA VOL FAULT output low voltage ISINK =1 mA VSET = 1.4 V 0.15 V IOH FAULT output high voltage VFAULT =5.5 V VSET =1V 1 μA TPROT Thermal protection 130 °C THYST Thermal hysteresis 15 °C 1. VIN =3V, TA =TMIN to TMAX, unless otherwise specified. Typical values are at TA =25°C Table 8. Electrical characteristics (continued) Symbol Parameter Test condition(1) Value Unit TA = 25°C Min Typ Max |
Numéro de pièce similaire - ST890B_07 |
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Description similaire - ST890B_07 |
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