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TPS61181 Datasheet(PDF) 5 Page - Texas Instruments |
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TPS61181 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 28 page  TPS61180/1/2 www.ti.com SLVS801E – DECEMBER 2007 – REVISED APRIL 2013 RECOMMENDED OPERATING CONDITIONS MIN TYP MAX UNIT Vbat Battery input voltage range 5.0 24 V Cin IC supply voltage range 2.7 3.6 V VO Output voltage range Vin 38 V L Inductor 4.7 10 μH CI Input capacitor 1 μF CO Output capacitor 2.2 10 μF FPWM PWM dimming frequency 0.1 1 kHz TA Operating ambient temperature –40 85 °C TJ Operating junction temperature –40 125 °C ELECTRICAL CHARACTERISTICS VBAT = 10.8 V, 0.1 μF at Cin, EN = Logic High, IFB current = 15m A, IFB voltage = 500 mV, 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 VBAT Battery input voltage range 5.0 24 V Vcc IC supply voltage range TPS61180 only 2.7 3.15 3.6 V Vcin Cin pin output voltage TPS61181/TPS61182 only 2.7 3.15 3.6 V Device enable, switching TPS61180 1 Iq_bat Operating quiescent current into VBAT mA no load, Vin = 24 V TPS61181/2 3 Iq_Vcc Operating quiescent current into Cin pin TPS61180 only 2 mA IQ_sw Operating quiescent current into VO VO = 35V 50 μA ISD Shutdown current EN=GND 2 18 μA Vcc_UVLO Cin pin under-voltage lockout threshold TPS61180 only 2.2 2.4 V Vbat_UVLO VBAT under-voltage lockout threshold When Vin ramp down 4.2 4.5 V Vbat_hys VBAT under-voltage lockout hysteresis When Vin ramp up 300 mV EN AND DCTRL VH Logic high voltage 1.2 V VL Logic low voltage 0.4 V RPD Pull down resistor on both pins 400 800 1600 k Ω TPS61180/1 27 37 TSD EN pulse width to shutdown EN high to low ms TPS61182 21 28 CURRENT REGULATION VISET ISET pin voltage 1.204 1.229 1.253 V KISET Current multiple Iout/ISET ISET current = 15 μA and 25 μA 970 1000 1030 IFB Current accuracy Riset = 62K 19.4 20 20.6 mA Km (Imax–Imin)/IAVG ISET current = 15 μA and 25 μA 1 2.5 % Ileak IFB pin leakage current IFB voltage = 20 V on all pins 3 μA IIFB_MAX Current sink max output current IFB = 425 mV 25 mA BOOST OUTPUT REGULATION VIFB_L VO dial up threshold Measured on VIFB(min) 400 mV VIFB_H VO dial down threshold Measured on VIFB(min) 700 mV Vreg_L Min Vout regulation voltage 16 V Vo_step VO stepping voltage 100 150 mV POWER SWITCH RPWM_SW PWM FET on-resistance VCC = 3.3 V for TPS61180 0.2 0.45 Ω Rstart Start up charging resistance VO = 0 V 100 300 Ω Copyright © 2007–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: TPS61180/1/2 |
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