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TPS2378DDA Datasheet(PDF) 3 Page - Texas Instruments |
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TPS2378DDA Datasheet(HTML) 3 Page - Texas Instruments |
3 / 25 page TPS2378 www.ti.com SLVSB99A – MARCH 2012 – REVISED MARCH 2012 RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range and voltages with respect to VSS (unless otherwise noted) MIN NOM MAX UNIT RTN, VDD 0 57 Input voltage range APD to RTN 0 18 V CDB, T2P to RTN 0 57 RTN 0.85 A Sinking current CDB, T2P 2 mA Resistance CLS(1) 60 Ω Junction temperature –40 125 °C (1) Voltage should not be externally applied to this pin. ELECTRICAL CHARACTERISTICS 40 V ≤ VVDD ≤ 57 V, RDEN = 24.9 kΩ, VCDB, VCLS, and VT2P open; VAPD = VRTN; –40°C ≤ TJ ≤ 125°C. Positive currents are into pins. Typical values are at 25°C. All voltages are with respect to VVSS unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DETECTION (DEN) DEN open, VVDD = 10.1 V, Measure ISUPPLY(VDD, RTN, Bias current 3 4.8 12 µA DEN), Not in mark Measure ISUPPLY(VDD, RTN, DEN), VDD = 1.4 V 53.8 56.5 58.3 Detection current µA Measure ISUPPLY(VDD, RTN, DEN), VDD = 10.1 V, Not in 395 410 417 mark Disable threshold DEN falling 3 3.7 5 V VPD_DIS Hysteresis 50 113 200 mV AUXILIARY POWER DETECTION (APD) VAPDEN VAPD rising, measure to VRTN 1.40 1.50 1.60 Voltage threshold V VAPDH Hysteresis, measure to VRTN 0.27 0.30 0.33 Sinking current V(APD–RTN) = 5 V, measure IAPD 1 1.73 3 µA CLASSIFICATION (CLS) 13 V ≤ VVDD ≤ 21 V, Measure IVDD + IDEN + IRTN RCLS = 1270 Ω 1.8 2.17 2.6 RCLS = 243 Ω 9.9 10.6 11.2 ICLS Classification current RCLS = 137 Ω 17.6 18.6 19.4 mA RCLS = 90.9 Ω 26.5 27.9 29.3 RCLS = 63.4 Ω 38 39.9 42.0 VCL_ON VVDD rising, ICLS ↑ 11.9 12.5 13.0 Class lower threshold V VCL_H Hysteresis 1.4 1.6 1.7 VCU_ON VVDD rising, ICLS↓ 21 22 23 Class upper threshold V VCU_H Hysteresis 0.5 0.78 0.9 VMSR Mark reset threshold VVDD falling 3 3.9 5 V Mark state resistance 2-point measurement at 5 V and 10.1 V 6 10 12 k Ω Leakage current VVDD = 57 V, VCLS = 0 V, measure ICLS 1 µA PASS DEVICE (RTN) rDS(on) On resistance 0.2 0.42 0.75 Ω Input bias current VVDD = VRTN = 30 V, measure IRTN 30 µA Current limit VRTN =1.5 V 0.85 1 1.2 A Inrush current limit VRTN = 2 V, VVDD: 20 V → 48 V 100 140 180 mA Inrush termination Percentage of inrush current 80% 90% 99% Foldback threshold VRTN rising 11 12.3 13.6 V Copyright © 2012, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS2378 |
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