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ADP1754ACPZ-1.1-R7 Datasheet(PDF) 16 Page - Analog Devices |
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ADP1754ACPZ-1.1-R7 Datasheet(HTML) 16 Page - Analog Devices |
16 / 20 page ADP1754/ADP1755 Data Sheet Rev. E | Page 16 of 20 140 120 100 80 60 40 20 0 0.25 0.75 1.25 1.75 2.25 2.75 VIN – VOUT (V) MAX JUNCTION TEMPERATURE LOAD = 10mA LOAD = 100mA LOAD = 200mA LOAD = 400mA LOAD = 800mA LOAD = 1.2A Figure 36. 6400 mm2 of PCB Copper, TA = 25°C, LFCSP 140 120 100 80 60 40 20 0 0.25 0.75 1.25 1.75 2.25 2.75 VIN – VOUT (V) MAX JUNCTION TEMPERATURE LOAD = 10mA LOAD = 100mA LOAD = 200mA LOAD = 400mA LOAD = 800mA LOAD = 1.2A Figure 37. 500 mm2 of PCB Copper, TA = 25°C, LFCSP 140 120 100 80 60 40 20 0 0.25 0.75 1.25 1.75 2.25 2.75 VIN – VOUT (V) MAX JUNCTION TEMPERATURE LOAD = 10mA LOAD = 100mA LOAD = 200mA LOAD = 400mA LOAD = 800mA LOAD = 1.2A Figure 38. 0 mm2 of PCB Copper, TA = 25°C, LFCSP 140 120 100 80 60 40 20 0 0.25 0.75 1.25 1.75 2.25 2.75 VIN – VOUT (V) MAX JUNCTION TEMPERATURE LOAD = 10mA LOAD = 200mA LOAD = 400mA LOAD = 800mA LOAD = 1.2A LOAD = 100mA Figure 39. 6400 mm2 of PCB Copper, TA = 50°C, LFCSP 140 120 100 80 60 40 20 0 0.25 0.75 1.25 1.75 2.25 2.75 VIN – VOUT (V) MAX JUNCTION TEMPERATURE LOAD = 10mA LOAD = 100mA LOAD = 200mA LOAD = 400mA LOAD = 800mA LOAD = 1.2A Figure 40. 500 mm2 of PCB Copper, TA = 50°C, LFCSP 140 120 100 80 60 40 20 0 0.25 0.75 1.25 1.75 2.25 2.75 VIN – VOUT (V) MAX JUNCTION TEMPERATURE LOAD = 10mA LOAD = 100mA LOAD = 200mA LOAD = 400mA LOAD = 800mA LOAD = 1.2A Figure 41. 0 mm2 of PCB Copper, TA = 50°C, LFCSP In cases where the board temperature is known, the thermal characterization parameter, ΨJB, can be used to estimate the junction temperature rise. Maximum junction temperature (TJ) is calculated from the board temperature (TB) and power dissipation (PD) using the following formula: TJ = TB + (PD × ΨJB) (7) |
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