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TPS54394PWPR Datasheet(PDF) 3 Page - Texas Instruments |
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TPS54394PWPR Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 28 page  TPS54394 www.ti.com SLVSBE6B – JUNE 2012 – REVISED AUGUST 2013 RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) VALUES UNIT MIN MAX Supply input voltage range VIN1, VIN2 4.5 18 V VBST1, VBST2 –0.1 24 VBST1, VBST2 (10ns transient) –0.1 27 VBST1–SW1, VBST2–SW2 –0.1 5.7 Input voltage range VFB1, VFB2 –0.1 5.7 V EN1, EN2 –0.1 18 SW1, SW2 –1.0 18 SW1, SW2 (10ns transient) –4.5 21 VREG5, PG1 , PG2 –0.1 5.7 Output voltage range PGND1, PGND2 –0.1 0.1 V VO1, VO2 0.76 7.0 TA Operating free-air temperature –40 85 °C TJ Operating Junction Temperature –40 150 °C ELECTRICAL CHARACTERISTICS (1) over recommended free-air temperature range, VIN = 12 V (unless otherwise noted) PARAMETER CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT TA = 25°C, EN1 = EN2 = 5 V, IIN VIN supply current 1200 2000 µA VFB1 = VFB2 = 0.8 V IVINSDN VIN shutdown current TA = 25°C, EN1 = EN2 = 0 V, 15 20 µA FEEDBACK VOLTAGE VVFBTHLx VFBx threshold voltage TA = 25°C, CH1 = 3.3 V, CH2 = 1.5 V 758 765 773 mV TCVFBx Temperature coefficient On the basis of 25°C(2) –115 115 ppm/ ℃ IVFBx VFB Input Current VFBx = 0.8 V, TA = 25°C –0.4 0.2 0.4 µA VREG5 OUTPUT TA = 25°C, 6 V < VIN1 < 18 V, VVREG5 VREG5 output voltage 5.5 V IVREG = 5 mA VIN1 = 6 V, VREG5 = 4.0 V, IVREG5 Output current 75 mA TA = 25°C (2) MOSFETs rDS(on)H High side switch resistance TA = 25℃, VBSTx-SWx = 5.5 V (2) 90 m Ω rDS(on)L Low side switch resistance TA = 25℃ (2) 60 m Ω ON-TIME TIMER CONTROL TON1 SW1 On Time SW1 = 12 V, VO1 = 1.2 V 165 ns TON2 SW2 On Time SW2 = 12 V, VO2 = 1.2 V 165 ns TOFF1 SW1 Min off time TA = 25℃, VFB1 = 0.7 V (2) 220 ns TOFF2 SW2 Min off time TA = 25℃, VFB2 = 0.7 V (2) 220 ns SOFT START TSS Soft-start time Internal soft-start time 1.0 ms (1) x means either 1 or 2, that is, VFBx means VFB1 or VFB2. (2) Specified by design. Not production tested. Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links :TPS54394 |
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