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TPS40210-HT Datasheet(PDF) 4 Page - Texas Instruments |
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TPS40210-HT Datasheet(HTML) 4 Page - Texas Instruments |
4 / 39 page TPS40210-HT SLVSAD8 – JUNE 2010 www.ti.com ELECTRICAL CHARACTERISTICS TJ = –55°C to 210°C, VVDD= 12 Vdc, all parameters at zero power dissipation (unless otherwise noted) TA = –55°C to 125°C TA = 210°C PARAMETER TEST CONDITIONS UNIT MIN TYP MAX MIN TYP MAX Voltage Reference Feedback voltage COMP = FB, VFB 686 700 720 686 702 725 mV range 5.5 ≤ VVDD ≤ 52 V Input Supply VVDD Input voltage range 4.5 52 5.5 52 V 5.5 ≤ VVDD ≤ 52 V, no switching, VDIS < 0.8 1.5 2.5 1.5 3 mA IVDD Operating current 2.5 ≤ VDIS ≤ 7 V 10 20 23 90 mA VVDD < VUVLO(on), VDIS < 0.8 430 530 460 700 mA Undervoltage Lockout (UVLO) Turn on threshold VUVLO(on) 4 4.25 4.50 4.60 V voltage VUVLO(hyst) UVLO hysteresis 140 195 240 195 mV Oscillator Oscillator frequency 35 1000 35 1000 range(1) fOSC kHz Oscillator frequency RRC = 200 kΩ, CRC = 470 pF 260 300 340 260 300 400 Frequency line 5.5 ≤ VDD ≤ 52 V –20 7 –20 7 % regulation Slope compensation VSLP 520 620 720 480 640 750 mV ramp PWM VVDD = 12 V (1) 275 400 500 tON(min) Minimum pulse width ns VVDD = 30 V 90 200 120 tOFF(min) Minimum off time 170 200 100 ns VVLY Valley voltage 1.2 V Soft-Start Offset voltage from VSS(ofst) SS pin to error 700 700 mV amplifier input Soft-start charge RSS(chg) 320 450 600 305 375 600 k Ω resistance Soft-start discharge RSS(dchg) 840 1200 1600 700 968 1600 k Ω resistance Error Amplifier Unity gain bandwidth GBWP 1.5 3 1.5 3 MHz product(1) AOL Open loop gain(1) 60 80 dB Input bias current IIB(FB) 111 300 65 nA (current out of FB pin) ICOMP(src) Output source current VFB = 0.6 V, VCOMP = 1 V 100 265 100 280 mA ICOMP(snk) Output sink current VFB = 1.2 V, VCOMP = 1 V 1.2 2.3 0.9 1.3 mA Overcurrent Protection Overcurrent detection VISNS(oc) threshold (at ISNS 5.5 ≤ VDD < 52 V, –55°C ≤ TJ ≤ 210°C 120 150 180 120 150 180 mV pin) Overcurrent duty DOC 2 2 % cycle(1) (1) Specified by design 4 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): TPS40210-HT |
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