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AMT49413GEVATR bảng dữ liệu(PDF) 6 Page - Allegro MicroSystems |
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6 / 21 page 3-Phase BLDC Controller and MOSFET Driver AMT49413 6 Allegro MicroSystems, LLC 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Characteristics Symbol Test Conditions Min. Typ. Max. Units CURRENT LIMIT Reference Comparator Input Offset Voltage VIOC –15 0 15 mV Reference Input Clamp Voltage VREFC External pull-up to 5 V RREF = 200 kΩ 3.75 4 4.2 V Comparator Blank Time tRC RT= 56 kΩ, CT = 470 pF – 650 – ns REF Input Bias Current IIBREF – 0 – µA RC Charge Current2 IRC –1.15 –1 –0.85 mA RC HIgh Voltage Threshold VRCH 1.7 1.9 2.1 V RC Low Voltage Threshold VRCL 0.6 0.7 0.8 V PROTECTION VREG Undervoltage Lockout VREGUV VREG rising 7.5 8 8.5 V VREG falling 6.75 7.25 7.75 V Bootstrap Capacitor Undervoltage Lockout VBOOTUV VBOOT falling, VCx – VSx 59 – 69 % Bootstrap Capacitor Undervoltage Lockout Hysteresis VBOOTUVHys VBOOTUVHys = %VREG – 13 – % V5 Undervoltage Lockout V5UV V5 falling 3.4 3.65 4.0 V V5 Undervoltage Lockout Hysteresis V5UVHys 300 400 500 mV VDSTH Input Voltage Range VDSTH 0.3 – 4 V VDSTH Input Current2 IDSTH –1 – 1 µA VDRAIN Input Voltage Range VDRAIN 7 VBB 45 V Short-to-Ground Threshold Offset3,5 VSTGO VDSTH > 1 V – ±300 – mV VDSTH ≤ 1 V, 7 V ≤ VDRAIN ≤ 30 V –150 – 150 mV Short-to-Battery Threshold Offset4,5 VSTBO VDSTH > 1 V – ±300 – mV VDSTH ≤ 1 V, 7 V ≤ VDRAIN ≤ 30 V –150 – 150 mV Low Load Current Detection Voltage VCSOL – 500 – mV Overtemperature Flag TJF Temperature increasing – 170 – ºC Overtemperature Flag Hysteresis TJFHys Recovery = TJF – TJFHys – 15 – ºC 1 Function is correct but parameters not guaranteed above or below general limits (7 to 45 V). 2 For input and output current specifications, negative current is defined as coming out of (sourcing) the specified device pin. 3 High-side on. As VSX decreases, fault occurs if VBAT – VSX > VSTG . 4 Low-side on. As VSX increases, fault occurs if VSX – VLSS > VSTB . 5 VSTG threshold is VDTSTH + VSTGO. VSTB threshold is VDTSTH + VSTBO . ELECTRICAL CHARACTERISTICS (continued): Valid at TA = 25°C, VBB = 7 to 45 V, unless otherwise noted |
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