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L6460 数据表(PDF) 19 Page - STMicroelectronics |
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L6460 数据表(HTML) 19 Page - STMicroelectronics |
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19 / 139 page  L6460 Electrical specifications Doc ID 17713 Rev 1 19/139 VIH nAWAKE high logic level voltage 1.6 V VHYS nAWAKE input hysteresis 0.25 V IOUT nAWAKE pin output current nAWAKE=0V(5) -0.72 -2 mA IINP nAWAKE pin input current nAWAKE=0.8V(5) 0.2 0.4 mA tAWAKEFILT Filter time 1.2 μs Main linear regulator Vdrop Drop out voltage Vdrop= Vsupply-VLINmain_OUT 2V IPD Internal switch pull down current Linear Main Regulator disabled; VLINmain_OUT=1V 3mA VLINmain_Ref Feedback reference voltage 0.776 0.8 0.824 V ILINmain_Ref Feedback pin input current -2 2 µA IoutLINMax Maximum output current VLINmain_OUT= Vsupply-2V 10 mA Ishort Output short circuit current VLINmain_OUT =0V, VLINmain_FB =0V 12 24 32 mA ΔV out/Vo Load regulation 0 ≤ I load ≤ IoutLINMax (6) 0.8 % ΔV out/ΔVSupply Line regulation Iload =10mA (6) 0.2 % Vloop_acc Loop voltage accuracy ±2.5 % VLIN_UV_f Undervoltage falling threshold (7) 84.5 87 89.5 % VLIN_UV_r Undervoltage rising threshold (7) 90.5 93 95.5 % VLIN_UV_hys Undervoltage hysteresis 6 % tprim_uv Under voltage deglitch filter 5 µs Main switching regulator VFBREF Main switching regulator feedback reference voltage SelFBref = ‘00’ 0.776 0.8 0.824 V SelFBref = ‘01’ (8) 0.97 1 1.03 V SelFBref = ‘10’ 2.425 2.5 2.575 V SelFBref = ‘11’ 2.91 3 3.09 V IQ Output leakage current Tjunction = 125°C -40 +40 µA IQ_LP Output leakage current in “low power mode” VSupply = 36V Tjunction = 125°C -15 +15 µA ISWmain_FB VSWmain_FB pin current Tjunction = 125°C -10 +10 µA VSWmain_OUT Output voltage range (9) 0.8 5 V Iload Maximum output load current VSupply = 36V 0.002 3 A RDSonHS Internal high side RDSon Iload=1A Tjunction = 125°C 0.33 0.95 Ω Table 5. Electrical characteristics (continued) Parameter Description Test condition Min Typ Max Unit |
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