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TPS2358_0806 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS2358_0806 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 34 page  TPS2358 SLUS820D – FEBRUARY 2008 – REVISED JUNE 2008 ................................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS (continued) IN3A = IN3B = VDD3A = VDD3B = 3.3 V. IN12A = IN12B = SENPA = SENPB = SENMA = SENMB = SETPA = SETPB = 12 V. EN12A = EN12B = EN3A = EN3B = ORENA = ORENB = CT12A = CT12B = CT3A = CT3B = AGND = GNDA = GNDB = 0 V. SUM12A = SUM12B = 6.8 k Ω to ground. SUM3A = SUM3B = 3.3 kΩ to ground. All other pins open. Over free air temperature operating range and all voltages referenced to AGND, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS 12-V UVLO UVLO rising IN12x rising 8.1 8.5 8.9 V UVLO hysteresis(2) IN12x falling 0.44 0.5 0.59 12-V BLOCKING Turn-on threshold Measure VSENPx – VOUTx 5 10 15 mV Turn-off threshold Measure VSENPx – VOUTx –5 –3 0 Turn-off delay(2) 20 mV overdrive, CBLKx = 0 pF, tp50-50 200 300 ns 12-V Gate Drivers ( PASSx, BLKx ) Output voltage VINx = VOUTx = 10 V 21.5 23 24.5 V Sourcing current VIN12x = VOUT12x = 10 V, VPASSx = VBLKx = 17 V 20 30 40 µA Fast turnoff, VPASSx = VBLKx = 14 V 0.5 1 A Sinking current Sustained, VPASSx = VBLKx = 4 – 25 V 6 14 25 mA Pulldown resistance In OTSD ( at 150 °C ) 14 20 26 k Ω Fast turn-off duration(2) 5 10 15 µs Disable delay(2) EN12x pin to PASSx and BLKx, tp50-90 1 µs Startup time(2) IN12x rising to PASSx and BLKx sourcing 0.25 ms 3.3-V Summing Node Summing threshold 655 675 695 mV 3.3-V Current Limit On resistance IOUT3x = 150 mA 290 500 m Ω Current limit RSUM3x = 3.3 kΩ , VOUT3x = 0 V 170 195 225 mA Fast trip threshold 250 300 400 Fast turn-off delay(2) IOUT3x = 400 mA, tp50-50 750 1300 ns 3.3-V UVLO UVLO rising IN3x rising 2.65 2.75 2.85 V UVLO hysteresis(2) IN3x falling 200 240 300 mV Supply Currents (IINx + ISENPx + ISENMx + ISETx + IVDDx) All channels enabled IOUT3A = IOUT3B = 0 3.1 4 mA All channels disabled 2 2.8 Thermal Shutdown Whole-chip shutdown TJ rising, IOUT3A = IOUT3B = 0 140 150 temperature(2) 3.3 V channel shutdown °C TJ rising, IOUT3A or IOUT3B in current limit 130 140 temperature(2) Hysteresis(2) Whole chip or 3.3-V channel 10 (2) Not production tested. 4 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): TPS2358 |
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