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TPS54227DRCT Datasheet(PDF) 3 Page - Texas Instruments |
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TPS54227DRCT Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 26 page  TPS54227 www.ti.com SLVSAU2B – MAY 2011 – REVISED JUNE 2013 RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT VIN Supply input voltage range 4.5 18 V VBST –0.1 24 VBST (10 ns transient) -0.1 27 VBST(vs SW) –0.1 6 SS –0.1 5.7 VI Input voltage range EN –0.1 18 V VFB –0.1 5.5 SW –1.8 18 SW (10 ns transient) –3 21 GND –0.1 0.1 VO Output voltage range VREG5 –0.1 5.7 V IO Output Current range IVREG5 0 10 mA TA Operating free-air temperature –40 85 °C TJ Operating junction temperature –40 150 °C ELECTRICAL CHARACTERISTICS over operating free-air temperature range, VIN = 12 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT VIN current, TA = 25°C, EN = 5 V, IVIN Operating - non-switching supply current 800 1200 μA VFB = 0.8 V IVINSDN Shutdown supply current VIN current, TA = 25°C, EN = 0 V 5.0 10 μA LOGIC THRESHOLD VENH EN high-level input voltage EN 1.6 V VENL EN low-level input voltage EN 0.6 V REN EN pin resistance to GND VEN = 12 V 220 440 880 k Ω VFB VOLTAGE AND DISCHARGE RESISTANCE VFBTH VFB threshold voltage TA = 25°C, VO = 1.05 V, continuous mode 749 765 781 mV IVFB VFB input current VFB = 0.8 V, TA = 25°C 0 ±0.1 μA VREG5 OUTPUT TA = 25°C, 6.0 V < VIN < 18 V, VVREG5 VREG5 output voltage 5.2 5.5 5.7 V 0 < IVREG5 < 5 mA VLN5 Line regulation 6 V < VIN < 18 V, IVREG5 = 5 mA 25 mV VLD5 Load regulation 0 mA < IVREG5 < 5 mA 100 mV IVREG5 Output current VIN = 6 V, VREG5 = 4.0 V, TA = 25°C 60 mA MOSFET High side switch resistance (DDA) 155 RDS(on)h 25°C, VBST - SW = 5.5 V m Ω High side switch resistance (DRC) 165 RDS(on)l Low side switch resistance 25°C 108 m Ω CURRENT LIMIT Iocl Current limit L out = 2.2 μH(1) 2.5 3.3 4.7 A THERMAL SHUTDOWN Shutdown temperature (1) 165 TSDN Thermal shutdown threshold °C Hysteresis (1) 35 (1) Not production tested. Copyright © 2011–2013, Texas Instruments Incorporated 3 Product Folder Links: TPS54227 |
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