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TPS2456ARHHR Datasheet(PDF) 3 Page - Texas Instruments |
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TPS2456ARHHR Datasheet(HTML) 3 Page - Texas Instruments |
3 / 32 page TPS2456A www.ti.com SLVSBI8 – JULY 2012 RECOMMENDED OPERATING CONDITIONS Over recommended junction temperature range and all voltages referenced to GND, unless otherwise noted. MIN TYP MAX UNIT VINx 8.5 12 15 V IMONx 100 1000 µA GAT1x, GAT2x board leakage current(1) –1 1 µA VINT bypass capacitance 1 100 250 nF Operating junction temperature range, TJ –40 125 °C (1) This condition applies to the PCB and is not a limit on the TPS2456A. ELECTRICAL CHARACTERISTICS Common conditions (unless otherwise noted) are: INA = INB = SENPA = SENPB = SENMA = SENMB = SETPA = SETPB = 12 V, ENA = ENB = ORENA = ORENB = 3 V, CTA = CTB = GND, RMONA = RMONB = 6.81kΩ, all other pins open, –40°C ≤ TJ ≤ 125°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Enable Input – ENx, ORENx Threshold voltage VINx ↑ 1.25 1.35 1.45 V Hysteresis 20 50 80 mV Pullup current ENx = ORENx = 0 V, current sourcing 5 8 15 µA Input bias current ENx = ORENx = 17 V, current sinking 6 15 µA Turn off time(1) (2) ENx deasserts to VOUTx < 1 V, COUT = 0 µF, QGAT1x = 33 nF 20 µs Power Good Output – PGx Output low voltage IPGx = 2 mA sinking 0.14 0.25 V Leakage current PGx = 17 V (sinking) 1 µA Threshold voltage PGx, VOUTx ↓ 10.2 10.5 10.8 V Hysteresis PGx, VOUTx ↑ 130(2) mV Deglitch time PGx falling 50 100 150 µs Fault Output – FLTx Output low voltage IFLTx = 2 mA sinking 0.14 0.25 V Leakage current VFLTx = 17 V (sinking) 1 µA Bias Supply – VINT Output voltage 0 < IVINT < 50 µA 2 2.3 2.8 V Fault Timer – CTx Sourcing current VCTx = 0 V, during fault 7 10 13 µA Upper threshold voltage 1.30 1.35 1.40 V Discharge pulldown(2) 200 Ω (VGAT1x – VINx) when timer starts, with VGAT1x falling due to over Timer start threshold 5 6 7 V current Channel Current Monitor – MONx 10.8 V ≤ VSENMx ≤ 13.2 V, VSENPx = VSENMx + 50 mV, Input referred offset –1.5 1.5 mV measure VSETx – VSENMx MONx threshold VGAT1x = 15 V 0.66 0.675 0.69 V Leakage current VSETx = (VSENMx – 10 mV) 1 µA (1) Tested with HAT2156 MOSFET. (2) These parameters are provided for reference only, and do not constitute part of TI's published device specifications for purposes of TI's product warranty. Copyright © 2012, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS2456A |
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