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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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VIPER17HDTR 数据表(PDF) 8 Page - STMicroelectronics |
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VIPER17HDTR 数据表(HTML) 8 Page - STMicroelectronics |
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8 / 33 page  Electrical data VIPER17 8/33 Table 8. Controller section (TJ = -25 to 125 °C, VDD = 14 V; unless otherwise specified) Symbol Parameter Test condition Min Typ Max Unit Feed-back pin VFBolp Over load shut down threshold 4.7 4.8 5.2 V VFBlin Linear dynamics upper limit 3.2 3.3 3.4 V VFBbm Burst mode threshold Voltage falling 0.4 0.5 0.6 V VFBbmhys Burst mode hysteresis Voltage rising 50 mV IFB Feed-back sourced current VFB = 0.3 V -150 -200 -280 uA 3.3 V < VFB < 4.8 V -3 uA RFB(DYN) Dynamic resistance VFB < 3.3 V 14 19 k Ω HFB ΔV FB / ΔID 49 V/A CONT pin VCONT_l Low level clamp voltage ICONT = -100 μA0.5 V Current limitation IDlim Max drain current limitation VFB = 4 V, ICONT = -10 µA TJ = 25 °C 0.38 0.4 0.42 A tSS Soft-start time 8.5 ms TON_MIN Minimum turn ON time 220 400 480 ns td Propagation delay 100 ns tLEB Leading edge blanking 300 ns ID_BM Peak drain current during burst mode VFB = 0.6 V 90 mA Oscillator section FOSC VIPER17L VDD = operating voltage range, VFB = 1 V 54 60 66 kHz VIPER17H 103 115 127 kHz FD Modulation depth VIPER17L ±4 kHz VIPER17H ±8 kHz FM Modulation frequency 250 Hz DMAX Maximum duty cycle 70 80 % |
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