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L6258EP Folha de dados(PDF) 8 Page - STMicroelectronics |
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L6258EP Folha de dados(HTML) 8 Page - STMicroelectronics |
8 / 32 page Block diagram L6258EP 8/32 Table 4. Electrical characteristics (VS = 40V; VDD = 5V; Tj = 25°; unless otherwise specified.) Parameter Description Test condition Min. Typ. Max. Unit VS Supply voltage 12 40 V VDD Logic supply voltage 4.75 5.25 V VBOOT Storage voltage VS = 12 to 40V VS+6 VS+12 V VSense Max drop across sense resistor 1.25 V VS(off) Power off reset Off threshold 6 7.2 V VDD(off) Power off reset Off threshold 3.3 4.1 V IS(on) VS quiescent current Both bridges ON, no load 15 mA IS(off) VS quiescent current Both bridges OFF 7 mA IDD VDD operative current 15 mA ΔTSD-H Shut down hysteresis 25 °C TSD Thermal shutdown 150 °C fosc Triangular oscillator frequency(1) CFREF = 1nF 12.5 15 18.5 KHz TRANSISTORS IDSS Leakage current OFF State 500 μA Rds(on) On resistance ON state 0.6 0.75 W Vf Flywheel diode voltage If =1.0A 1 1.4 V CONTROL LOGIC Vin(H) lnput voltage All Inputs 2 VDD V Vin(L) Input voltage All inputs 0 0.8 V Iin Input current (2) 0 < Vin < 5V -150 +10 μA Idis Disable pin input current -10 +150 μA Vref1/ref2 Reference voltage Operating 0 2.5 V Iref Vref terminal input current Vref = 1.25 -2 5 μA FI = Vref/Vsense PWM loop transfer ratio 2 VFS DAC full scale precision Vref = 2.5V I0/I1/I2/I3 = L 1.23 1.34 V Voffset Current loop offset Vref = 2.5V I0/I1/I2/I3 = H -40 +40 mV DAC factor ratio Normalized @ full scale value -2 +2 % SENSE AMPLIFIER Vcm lnput common mode voltage range -0.7 VS+0.7 V |
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