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KA4976-AL Datasheet(PDF) 3 Page - Analog Devices |
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KA4976-AL Datasheet(HTML) 3 Page - Analog Devices |
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3 / 20 page  Data Sheet ADuM3070 Rev. 0 | Page 3 of 20 SPECIFICATIONS ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/5 V SECONDARY ISOLATED SUPPLY 4.5 V ≤ VDD1 = VDDA ≤ 5.5 V, VDD2 = VREG = VISO = 5.0 V, fSW = 500 kHz, all voltages are relative to their respective grounds, see the application schematic in Figure 31. All minimum/maximum specifications apply over the entire recommended operating range, unless otherwise noted. All typical specifications are at TA = 25°C, VDD1 = VDDA = 5.0 V, VDD2 = VREG = VISO = 5.0 V. Table 1. DC-to-DC Converter Static Specifications Parameter Symbol Min Typ Max Unit Test Conditions/Comments DC-TO-DC CONVERTER SUPPLY Isolated Output Voltage VISO 4.5 5.0 5.5 V IISO = 0 mA, VISO = VFB × (R1 + R2)/R2 Feedback Voltage Setpoint VFB 1.15 1.25 1.37 V IISO = 0 mA Line Regulation VISO (LINE) 1 10 mV/V IISO = 50 mA, VDD11 = VDDA2 = 4.5 V to 5.5 V Load Regulation VISO (LOAD) 1 2 % IISO = 50 mA to 200 mA Output Ripple VISO (RIP) 50 mV p-p 20 MHz bandwidth, COUT = 0.1 µF||47 µF, IISO = 100 mA Output Noise VISO (NOISE) 100 mV p-p 20 MHz bandwidth, COUT = 0.1 µF||47 µF, IISO = 100 mA Switching Frequency fSW 1000 kHz ROC = 50 kΩ 200 kHz ROC = 270 kΩ 192 318 515 kHz VOC = VDD2 (open-loop) IDDA Quiescent IDDA (Q) 4 5 mA Switch On Resistance RON 0.5 Ω Maximum Output Supply Current IISO (MAX) 400 500 mA f ≤ 1 MHz, VISO = 5.0 V Efficiency at Maximum Output Current 70 % IISO = IISO (MAX), f ≤ 1 MHz 1 VDD1 is the power supply for the push-pull transformer. 2 VDDA is the power supply of Side 1 of the ADuM3070. ELECTRICAL CHARACTERISTICS—3.3 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY 3.0 V ≤ VDD1 = VDDA ≤ 3.6 V, VDD2 = VREG = VISO = 3.3 V, fSW = 500 kHz, all voltages are relative to their respective grounds, see the application schematic in Figure 31. All minimum/maximum specifications apply over the entire recommended operating range, unless otherwise noted. All typical specifications are at TA = 25°C, VDD1 = VDDA = 3.3 V, VDD2 = VREG = VISO = 3.3 V. Table 2. DC-to-DC Converter Static Specifications Parameter Symbol Min Typ Max Unit Test Conditions/Comments DC-TO-DC CONVERTER SUPPLY Isolated Output Voltage VISO 3.0 3.3 3.63 V IISO = 0 mA, VISO = VFB × (R1 + R2)/R2 Feedback Voltage Setpoint VFB 1.15 1.25 1.37 V IISO = 0 mA Line Regulation VISO (LINE) 1 10 mV/V IISO = 50 mA, VDD11 = VDDA2 = 3.0 V to 3.6 V Load Regulation VISO (LOAD) 1 2 % IISO = 50 mA to 200 mA Output Ripple VISO (RIP) 50 mV p-p 20 MHz bandwidth, COUT = 0.1 µF||47 µF, IISO = 100 mA Output Noise VISO (NOISE) 100 mV p-p 20 MHz bandwidth, COUT = 0.1 µF||47 µF, IISO = 100 mA Switching Frequency fSW 1000 kHz ROC = 50 kΩ 200 kHz ROC = 270 kΩ 192 318 515 kHz VOC = VDD2 (open-loop) IDDA Quiescent IDDA (Q) 2 3.5 mA Switch On Resistance RON 0.6 Ω Maximum Output Supply Current IISO (MAX) 250 350 mA f ≤ 1 MHz, VISO = 3.3 V Efficiency at Maximum Output Current 70 % IISO = IISO (MAX), f ≤ 1 MHz 1 VDD1 is the power supply for the push-pull transformer. 2 VDDA is the power supply of Side 1 of the ADuM3070. |
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