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MC34921AE データシート(PDF) 9 Page - List of Unclassifed Manufacturers |
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MC34921AE データシート(HTML) 9 Page - List of Unclassifed Manufacturers |
9 / 36 page Analog Integrated Circuit Device Data Freescale Semiconductor 9 34921 STATIC ELECTRICAL CHARACTERISTICS 5.0 V Switching Regulator Vreg Threshold V5.0 4.8 5.0 5.2 V Cycle-by-Cycle Current Limit Threshold V5.0 = 2.0 V to Max V5.0 ≤ 1.0 V ILIMIT 0.75 – 1.2 1.0 2.25 – A V5.0 to Turn On/Off V3.3 Regulator (8) V5_3.3t –2.2 – V Hysteresis for V5_3.3t (8) V5_3.3t_hys – 175 – mV 3.3 V Switching Regulator Vreg Threshold V3.3 3.15 3.28 3.45 V Cycle-by-Cycle Current Limit Threshold V3.3 = 2.0 V to Max V3.3 ≤ 1.0 V ILIMIT 2.75 – 3.6 3.5 5.5 – A VCORE 3.3V Linear Regulator Voltage Tolerance ICORE = 0.02 A to 0.3 A, VNOM =2.5 V ICORE = 0.02 A to 0.3 A, VNOM =1.8 V ICORE 0 0.02 A to 0.3 A, VNOM =1.5 V VCORE_TOL 2.35 1.675 1.4 2.49 1.78 1.49 2.66 1.925 1.6 V Load Regulation ILOAD =20mA to 300mA VILOAD – ±10 ±100 mV Current Limit Threshold ILIMIT 400 750 1200 mA Motor Drivers in DC Mode Motor Driver A High- or Low-Side Switch Voltage Drop IPWM = 1.7 A, GND or B+ to Output VDROP(A) –.65 1.5 V Motor Driver A Output Current Limit ILIMIT(A) 3.6 4.9 7.2 A Motor Driver B High- or Low-Side Switch Voltage Drop IPWM = 2.0 A, GND or B+ to Output VDROP(B) –.70 1.4 V Motor Driver B Output Current Limit ILIMIT(B) 2.8 4.9 7.2 A Motor Driver C High- or Low-Side Switch Voltage Drop IPWM = 0.375 A, GND or B+ to Output VDROP(C) –.75 1.5 V Motor Driver C Current Limit—Top Side ILIMIT1(C) 0.75 1.2 1.5 A Motor Driver C Current Limit—Bottom Side ILIMIT2(C) 1.0 1.65 2.0 A Notes 8. See Figure 9, Power-Up Sequencing, page 21. Table 3. Static Electrical Characteristics (continued) Characteristics noted under conditions 16 V ≤ B+ ≤ 34 V, 0 °C ≤ TA ≤ 70°C, and 0°C ≤ TJ ≤ 100°C unless otherwise noted. Typical values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted. Characteristic Symbol Min Typ Max Unit |
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同様の説明 - MC34921AE |
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