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L5955 Datasheet(PDF) 5 Page - STMicroelectronics |
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L5955 Datasheet(HTML) 5 Page - STMicroelectronics |
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5 / 17 page  L5955 Electrical specification 5/17 2.3 Electrical characteristics Table 4. Electrical characteristics (Refer to the application circuit, Vbat =Vbat1+Vbat2+Vbat3= 14V, IST-BY1 = 0.5mA, IST-BY2 = 0.5mA, IREG1 = IREG2 = IREG3 = IREG4 = IREG5 = IREG6 = 5mA, RHSD1 = RHSD2 = RHSD3 = 16Ω) Symbol Parameter Test condition Min. Typ. Max. Unit IqST-BY Stand-by quiescent current Vbat = 14V, EN = 0. IST-BY1 = Istby2=100uA, IQ(Vbat)=Ivbat1+Ivabt2+Ivbat3 170 μA Iq Maximum quiescent current Vbat = 14V, EN=VSTBY1 Istby1=125mA Istby2=300mA IREG1 = 40mA IREG2 = 200mA, IREG3 = 850mA IREG4 = 1A, IREG5 = 250mA IREG6 = 200mA, IHSD1 = 2A IHSD2,3 = 450mA 100 mA IEN Enable input current Vbat = 14V; 5V<Enable ≥ 0V; 10 μA VIL VIH Enable threshold voltage Vbat = 14V; 2 0.8 V V VL MRST MRST output voltage VST-BY1 = 0.5V to VTH (ST-BY1) VST-BY2 = 0.5V to VTH (ST-BY2) Rising 0 0 0.4 0.4 V VH MRST VST-BY1 = VTH (ST-BY1) to 0.5V VST-BY2 = VTH (ST-BY2) to 0.5V Falling 0 0 0.4 0.4 V VTH MRST MRST output voltage threshold Force VST-BY1 & VST-BY2 Low until MRST asserted VST-BY2 · 0.93 VST-BY1 · 0.93 VST-BY2 · 0.97 VST-BY1 · 0.97 V V td MRST MRST delay time see Figure 4 13 μs tpor MRST Power on reset delay time CMRSTLY = 220nF see Figure 4 20 ms tf MRST MRST fall time RRST = 47kΩ, CRST = 50pF see Figure 4 1 μs ISCR MRST MRSTDLY current MRSTDLY = 0 6 12 μA ILKG MRSTDLY MRSTDLY leakage current MRSTDLY = 5V 6 μA Vsat MRSTDLY MRSTDLY saturation voltage IMRSTDLY =0.5mA 0 0.4 V VTH LVWIN input voltage threshold 1.25 V (nominal) 1.22 1.28 V ILKG lvwin input leakage current 2 µA VOH LVW output voltage IOH=-100µA VSTBY1 -0.2 VSTBY1 V |
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