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L9679P Datasheet(PDF) 237 Page - STMicroelectronics |
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L9679P Datasheet(HTML) 237 Page - STMicroelectronics |
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237 / 272 page  DocID029275 Rev 1 237/272 L9679P Electrical characteristics 271 17.13 SATBUCK converter All electrical characteristics are valid for the following conditions unless otherwise noted: -40 °C Ta +95 °C, VINGOOD0 VIN 35V, VSYNCBST_OK SYNCBOOST 5VFSTR Steering diode forward voltage IF = 1 A - - 0.5 V 6ILKGSTR Steering diode reverse leakage Ta = 95 °C - - 3 mA Table 46. SYNCBOOST converter external components design info (continued) No Symbol Component Conditions Min Typ Max Unit Table 47. SATBUCK converter DC specifications No Symbol Parameter Conditions Min Typ Max Unit 1 VO_SATBCK SATBUCK output voltage Across all line and load, steady state SAT_V = 0 6.92 7.2 7.48 V 2 Across all line and load, steady state SAT_V = 1 8.64 9 9.36 V 3IO_SATBCK_VH_IH SATBUCK output current SAT_V =0 LOW_POWER_MODE = 0 20 - 450 mA 4IO_ SATBCK _VH_IL SAT_V =0 LOW_POWER_MODE = 1 20 - 300 mA 5IO_ SATBCK _VL_IH SAT_V =1 LOW_POWER_MODE = 0 20 - 390 mA 6IO_ SATBCK _VL_IL SAT_V =1 LOW_POWER_MODE = 1 20 - 240 mA 7dVSR_ac Line transient response All line, load; dt=100 μs; SAT_V = 0/1 Design Info -4% - 4% % 8dVLR_ac Load transient response All line, load; dt=100 μs; SAT_V = 0/1 Design Info -4% - 4% % 9RDSON_SATBCK_HS High side power switch resistance - - - 0.6 Ω 10 RDSON_SATBCK_LS Low side power switch resistance - - 0.6 Ω 11 IOC_HS_SATBCK_HI High side over current detection LOW_POWER_MODE = 0 0.83 1.1 1.37 A 12 IOC_HS_SATBCK_LO LOW_POWER_MODE = 1 0.53 0.7 0.9 A 13 IOCP_LS_SATBCK_LO Low side positive over current detection VSATBCKSW ≥ 0 VSYNCBST < VSYNCBST_RESTART_TH 1 - 100 mA 14 IOCP_LS_SATBCK_HI VSATBCKSW ≥ 0 FAST SLOPE 100 240 350 mA |
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