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TPS61199PWP Datasheet(PDF) 3 Page - Texas Instruments |
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TPS61199PWP Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 25 page  TPS61199 www.ti.com SLVSAN3 A – DECEMBER 2010 – REVISED MAY 2011 ELECTRICAL CHARACTERISTICS VIN = 12V; TA = –40°C to +85°C, typical values are at TA = +25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT VIN Input voltage range 8 30 V VUVLO_VIN Under voltage lockout threshold VIN falling 6.5 7 V VVIN_SYS VIN hysteresis VIN rising 300 mV EN=high; PWM = low; Iq_VIN Operating quiescent current into Vin 1.5 mA no switching, VIN=30V ISD Shutdown current 10 µA VDD Internal regulation voltage Output current of VDD = 15mA 5.7 6.0 6.3 V EN and PWM VH Logic high threshold on EN,PWM, VIN = 8V to 30V 2.0 V VL Logic Low threshold on EN,PWM, VIN = 8V to 30V 0.8 V RPD Pull down resistor on EN, PWM 400 800 1600 k Ω CURRENT REGULATION VISET ISET pin voltage 1.204 1.229 1.253 V KISET Current multiple IIFB(AVG)/Iset IISET = 30µA; IFB = 450mV 1990 IFB Current accuracy to IIFB(AVG) IISET = 30µA; IFB = 450mV -2% 2% IFB(BR) (1) Current matching IISET= 30µA; IFB = 450mV 3% IFBleak IFB pin leakage current IFB voltage = 30V; PWM = low 10 25 45 µA IIFB_max Current sink max output current IFB = 450mV 70 mA OSCILLATOR R = 100 k Ω 0.66 0.8 0.94 FOSC Switching frequency MHz R = 160 k Ω 0.44 0.5 0.56 VFSW FSW pin reference voltage 1.229 V Dutymax Maximum duty cycle FSW= 500 kHz 90% 94% tskip Minimum pulse width for skip cycle mode 200 ns GATE DRIVER and OVER CURRENT LIMIT RGDRV(SRC) Gate driver impedance when sourcing VGDRV = 6V, IGDRV = 20mA 2 Ω RGDRV(SNK) Gate driver impedance when sinking VGDRV = 6V, IGDRV = 20mA 1.5 Ω VISNS Switch current limit detection threshold VIN = 8V to 30V 120 160 180 mV PROTECTION VCLAMP Output overvoltage threshold at OVP pin 2.77 2.95 3.13 V LED short across protection bias current multiple IFBP VFBP = 1V 0.23 0.25 0.27 IFBP/IISET VOVP_IFB IFB overvoltage threshold 26.5 29.5 V THERMAL SHUTDOWN Tshutdown Thermal shutdown threshold 150 °C (1) Current matching = (IMAX – IMIN)/ IAVG Copyright © 2010–2011, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS61199 |
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