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TPS53124 Datasheet(PDF) 7 Page - Texas Instruments |
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TPS53124 Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 29 page  TPS53124 www.ti.com SLUS825C – FEBRUARY 2008 – REVISED AUGUST 2014 6.5 Electrical Characteristics over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Supply Current VIN current, TA = 25°C, VREG5 tied IIN VIN supply current to V5FLT, EN1 = EN2 = 5 V, VFB1 450 800 = VFB2 = 0.8 V, LL1 = LL2 = 0.5 V μA VIN current, TA = 25°C, no load, IVINSDN VIN shutdown current 10 EN1 = EN2 = 0 V VFB Voltage and Discharge Resistance VBG Bandgap initial regulation accuracy TA = 25°C –1% 1% TA = 25°C 755 765 775 VVFBTH VFB threshold voltage mV TA = -40°C to 85°C 752 778 IVFB VFB input current VFBx = 0.8 V, TA = 25°C –0.01 ±0.1 μA RDISCHG VO discharge resistance ENx = 0 V, VOx = 0.5 V,TA = 25°C 40 80 Ω VREG5 Output TA = 25°C ,5.5 V < VIN < 24 V, 0 < VVREG5 VREG5 output voltage 4.6 5 5.2 V IVREG5 < 10 mA VLN5 Line regulation 5.5 V < VIN < 24 V, IVREG5 = 10 mA 20 mV VLD5 Load regulation 1 mA < IVREG5 < 10 mA 40 VIN = 5.5 V, VREG5 = 4.0 V, TA = IVREG5 Output current 170 mA 25°C Output: N-Channel MOSFET Gate Drivers Source, IDRVHx = -100 mA 5.5 11 RDRVH DRVH resistance Ω Sink, IDRVHx = 100 mA 2.5 5 Source, IDRVLx = –100 mA 4 12 RDRVL DRVL resistance Ω Sink, IDRVLx = 100 mA 2 4 DRVHx-low to DRVLx-on 20 50 80 TD Dead time ns DRVLx-low to DRVHx-on 20 40 80 Internal BST Diode VFBST Forward voltage VVREG5-VBSTx, IF = 10 mA, TA = 25°C 0.7 0.8 0.9 V IVBSTLK VBST leakage current VBST = 29 V, LL = 24 V, TA = 25°C 0.1 1 μA ON-Time Timer Control TON1 CH1 ON time LL1 = 12 V, VO1 = 1.5 V 390 TON2 CH2 ON time LL2 = 12 V, VO2 = 1.05 V 210 ns TON(min) CH2 ON time LL2 = 12 V, VO2 = 0.76 V 160 TOFF(min) CH1/CH2 min OFF time LL = 0.7 V TA = 25°C, VFB = 0.7 V 390 Soft Start TSS Internal SS time Internal soft start VFB = 0.735 V 0.85 1.2 1.4 ms Copyright © 2008–2014, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: TPS53124 |
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