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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) 73 Page - STMicroelectronics |
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SABRE-LL-I датащи(HTML) 73 Page - STMicroelectronics |
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73 / 141 page  SABRE-LL-I Power bridges 73/141 Vuvhys Under voltage hysteresis 6% taux_uv Under voltage deglitch filter 5µs Ilimit Current limit protection 3.1 5.3 A tdeglitch Current limit deglitch time 50 ns tI_lim Current limit response time In normal operating mode (no UV)(5) 700 ns tI_limUV Current limit response time in UV condition. When in Under Voltage(6) 500 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(6) 10 50 ns tdead Crossover dead time 100 ns FregPwm Operating frequency Fosc/64 kHz 1. The external components connected to the pin must be chosen to avoid that the voltage exceeds this operative range. 2. The regulated voltage can be calculated using the formula: VMAIN_SW = VFBREF *(Ra+Rb)/Rb. 3. The choice of proper values for L and C depends from the application. 4. Undervoltage rising and falling thresholds are intended as a percentage of feedback pin voltage (VSW_main_FB). 5. This condition is intended to simulate an extra current on output. 6. This condition is intended to simulate a short circuit on output. 7. Rise time is measured between 10% and 90% of supply voltage. Table 50. Battery charger operating specification (continued) Parameter Description Test condition Min Typ Max Unit |
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