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TPS54418 Datasheet(PDF) 6 Page - Texas Instruments |
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TPS54418 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 34 page ERROR AMPLIFIER Boot Charge Boot UVLO UVLO Current Sense Oscillator withPLL Frequency Shift Slope Compensation PWM Comparator Minimum COMP Clamp Maximum Clamp Voltage Reference Overload Recovery VSENSE SS COMP RT/CLK PH BOOT VIN AGND Thermal Shutdown EN Enable Comparator Shutdown Logic Shutdown Enable Threshold TPS54418RTEBlockDiagram Logic Shutdown PWRGD POWERPAD GND Logic Shutdown 107% 93% S LogicandPWM Latch i 1 i hys 450 460 470 480 490 500 510 520 530 540 550 -50 -25 0 25 50 75 100 125 150 T -JunctionTemperature-°C J RT =400k , V =3.3V W I 0.02 0.025 0.03 0.035 0.04 0.045 0.05 0.055 -50 -25 0 25 50 75 100 125 150 T -JunctionTemperature-°C J HighSideRdson V =3.3V I HighSideRdson V =5V I LowSideRdson V =3.3V I LowSideRdson V =5V I TPS54418 SLVS946A – MAY 2009 – REVISED MAY 2010 www.ti.com FUNCTIONAL BLOCK DIAGRAM TYPICAL CHARACTERISTICS CURVES HIGH SIDE AND LOW SIDE Rdson vs TEMPERATURE FREQUENCY vs TEMPERATURE Figure 1. Figure 2. 6 Submit Documentation Feedback Copyright © 2009–2010, Texas Instruments Incorporated Product Folder Link(s): TPS54418 |
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