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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SABRE-LL-I датащи(PDF) 40 Page - STMicroelectronics |
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SABRE-LL-I датащи(HTML) 40 Page - STMicroelectronics |
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40 / 141 page  Main switching regulator SABRE-LL-I 40/141 The output current is limited to a value that can be set by means of selilimit bit in the MainSwCfg register according to following table: Table 20. Main switching regulator current limit SelIlimit Current limit (min) Comments 0 3.3A Default state 12.3A Table 21. Main switching regulator specifications Parameter Description Test condition Min Typ Max Unit VMAIN_SW Output pin voltage range (1) -1 Vsupply V IQ Output leakage current Tjunction = 125°C -40 +40 µA IQlp Output leakage current in “Low Power Mode” VSupply = 36V Tjunction = 125°C -15 +5 µA IQfb Feedback pin current Tjunction = 125°C -10 +0 µA Vout Output voltage range (2) 0.8 5 V Iload Output load current VSupply = 36V 0.002 3 A RonH Internal high side RDson Iload=1A Tjunction = 125°C 0.55 O Vloop Loop voltage accuracy ±3% VregR Output voltage ripple (RMS) L =150u, C=330µF/ESR=0.54 Ω (3) 28 mVRMS VuvFall Under voltage falling threshold (4) 84.5 87 89.5 % VuvRise Under voltage rising threshold (4) 90.5 93 95.5 % Vuvhys Under voltage hysteresys 6 % tprim_uv Under voltage deglitch filter 5us Ilimit Current limit protection SelIlimit =”0” SelIlimit =”1” 3.3 2.3 5 3.5 TBD TBD A A tdeglitch Current limit deglitch time 50 ns tI_lim Current limit response time In normal operating mode (no UV)(5) 650 ns tI_limUV Current limit response time in UV condition. When in Under Voltage(6) 400 ns tr Switching output rise time VSupply = 36V, Resistive load to gnd = 422 Ω(7) 530 ns tf Switching output fall time VSupply = 36V, Resistive load to gnd = 10 Ω(7) 530 ns FregPwm Operating frequency Fosc/64 kHz |
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