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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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L9779WD 数据表(PDF) 42 Page - STMicroelectronics |
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L9779WD 数据表(HTML) 42 Page - STMicroelectronics |
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42 / 170 page  Functional description L9779WD 42/170 DocID027452 Rev 5 Table 14. VB Power supply electrical characteristics Pin Symbol Parameter Test Condition Min Typ Max Unit VB Ib Quiescent current from VB pin VB = 16 V Min. load on regulator outputs(1) -- 50 mA ILeak Standby current VB = 16V; VKEY_ON = GND Guaranteed at room temp. -- 10 µA VB = 16V; VKEY_ON = GND Guaranteed at hot temp. -- 100 VB_UV_H Under voltage switch on threshold high MRD, Low battery channels switch-on in power up -- 4.8 V VB_UV_L Under voltage switch off threshold Low MRD, Low battery channels switch-off 3.5 - 4.145 VB_OV_UP Over voltage switch off threshold -- - 32 V VB_OVh Over voltage threshold hysteresis -0.3 - 1 V VB_OV_DO WN Over voltage switch off threshold -28.5 - - V tVBOV1 Filter time for drivers turn- off Tested by scan 63 85 107 µs tVBOV2 Filter time for regulators turn-off Tested by scan 11 15 19 ms 1. Min. load on regulator output is Vtrk1 = 1 mA,Vtrk2 = 1 mA,V3V3 = 5 mA,VDD5 is open.(5 mA on V3V3 is from VDD5) |
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