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ST7538QTR датащи(PDF) 9 Page - STMicroelectronics |
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ST7538QTR датащи(HTML) 9 Page - STMicroelectronics |
9 / 44 page ST7538Q Electrical characteristics 9/44 3.2 Thermal data 4 Electrical characteristics Table 3. Thermal data Symbol Parameter TQFP44 with slug Unit RthJA1 Maximum Thermal Resistance Junction-Ambient Steady state (1) 1. Mounted on Multilayer PCB with a dissipating surface on the bottom side of the PCB 35 ° C/W RthJA2 Maximum Thermal Resistance Junction-Ambient Steady state (2) 2. It's the same condition of the point above, without any heatsinking surface on the board. 50 ° C/W Table 4. Electrical characteristics (AVdd = DVdd = +5V, PAVcc =+9 V, PAVss, SGND = DVss = 0V, -40°C ≤TA ≤ 85°C, TJ < 125 °C, fc = 86kHz, other control register parameters as default value, unless otherwise specified) Symbol Parameter Test condition Min Typ Max Unit AVdd, DVdd Supply voltages 4.75 5 5.25 V PAVdd - DVdd PAVCC and DVdd Relation during Power-Up Sequence DVdd < 4.75V with 5V Digital supply provided externally 0.1 1.2 V PAVCC - AVdd PAVCC and AVdd Relation during Power-Up Sequence AVdd < 4.75V 0.1 1.2 V PAVcc Power Supply Voltage 7.5 12.5 V Max allowed slope during Power-Up 100 V/ms AIdd + DIdd Input Supply Current Transmission & Receiving mode 57 mA I PAVCC Powered Analog Supply Current TX mode (no load) 30 50 mArms RX mode 500 1000 µA Maximum total current 370 mArms UVLO Input Under Voltage Lock Out Threshold on PAVcc 3.7 3.9 4.1 V UVLOHYS UVLO Hysteresis 340 mV Digital I/O Rdown Pull Down Resistor 100 k Ω Rup Pull up Resistor 100 k Ω |
Аналогичный номер детали - ST7538QTR |
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Аналогичное описание - ST7538QTR |
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