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THMC45DGNR Datasheet(PDF) 11 Page - Texas Instruments |
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THMC45DGNR Datasheet(HTML) 11 Page - Texas Instruments |
11 / 15 page THMC45 5V AND 3.3V DC BRUSHLESS FAN MOTOR DRIVER WITH SINGLE WIRE CONTROL SLIS101A − MAY 2001 11 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 THERMAL INFORMATION t − Ambient Temperature − °C 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 20 30 40 50 60 70 80 90 100 110 120 130 140 150 POWER DISSIPATION vs AMBIENT TEMPERATURE RθJ(SYS) = 100°C/W Note: RθJ(SYS) refers to composite thermal impedance provided by the IC package, PCB, and fan housing. RθJ(SYS) = 125°C/W RθJ(SYS) = 170°C/W RθJ(SYS) = 225°C/W RθJ(SYS) = 285°C/W Figure 7 t − Ambient Temperature − °C 0.0 0.1 0.2 0.3 0.4 0.5 20 30 40 50 60 70 80 90 100 110 120 130 140 150 CONTINUOUS CURRENT vs AMBIENT TEMPERATURE Note: RθJ(SYS) refers to composite thermal impedance provided by the IC package, PCB, and fan housing. Analysis assumes combined high and low-side RDSon = 5.5 Ω. RθJ(SYS) = 100°C/W RθJ(SYS) = 285°C/W RθJ(SYS) = 125°C/W RθJ(SYS) = 170°C/W RθJ(SYS) = 225°C/W Figure 8 |
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