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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MIC45116 датащи(PDF) 5 Page - Microchip Technology |
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MIC45116 датащи(HTML) 5 Page - Microchip Technology |
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5 / 42 page  2016 Microchip Technology Inc. DS20005571A-page 5 MIC45116 TABLE 1-1: ELECTRICAL CHARACTERISTICS Electrical Characteristics: VIN = VEN = 12V, VOUT = 3.3V, VBST – VSW = 5V, TJ = +25ºC. Bold values indicate –40°C ≤ TJ ≤ +125°C, unless otherwise noted. (Note 1). Symbol Parameters Min. Typ. Max. Units Conditions Power Supply Input VIN, PVIN Input Voltage Range 4.75 — 20 V— IQ Quiescent Supply Current (MIC45116-1) —0.35 0.75 mA VFB = 1.5V IQ Quiescent Supply Current (MIC45116-2) —1.03— mA VFB = 1.5V IIN Operating Current — 29.4 — mA PVIN = VIN = 12V, VOUT = 1.8V, IOUT = 0A (MIC45116-2) ISHDN Shutdown Supply Current — 5.3 10 µA VEN = 0V 5VDD Output VDD 5VDD Output Voltage 4.8 5.2 5.4 VVIN = 7V to 20V, I5VDD = 10 mA UVLO 5VDD UVLO Threshold 3.8 4.2 4.6 VV5VDD Rising UVLO_HYS 5VDD UVLO Hysteresis — 400 — mV V5VDD Falling —5VDD Load Regulation 0.6 2 3.6 % I5VDD = 0 mA to 40 mA Reference VFB Feedback Reference Voltage 0.792 0.8 0.808 V TJ = 25°C 0.784 0.8 0.816 –40°C ≤ TJ ≤ +125°C IFB_BIAS FB Bias Current — 5 500 nA VFB = 0.8V Enable Control ENHIGH EN Logic Level High 1.8 —— V — ENLOW EN Logic Level Low — — 0.6 V— ENHYS EN Hysteresis — 200 — mV — IENBIAS EN Bias Current — 5 10 µA VEN = 12V Oscillator fSW Switching Frequency 400 600 750 kHz IOUT = 2A DMAX Maximum Duty Cycle — 85 — % — DMIN Minimum Duty Cycle — 0 — % VFB = 1V tOFF(MIN) Minimum Off-Time 140 250 350 ns — Soft-Start tSS Soft-Start Time — 3.3 — ms FB from 0V to 0.8V Short-Circuit Protection VCL Current-Limit Threshold –30 –14 0 mV VFB = 0.79V VSC Short-Circuit Threshold –23 –7 9 mV VFB = 0V ICL Current-Limit Source Current 60 80 100 µA VFB = 0.79V ISC Short-Circuit Source Current 25 35 45 µA VFB = 0V Note 1: Specification for packaged product only. |
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