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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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TPS65800 Fiches technique(PDF) 8 Page - Texas Instruments |
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TPS65800 Fiches technique(HTML) 8 Page - Texas Instruments |
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8 / 98 page  www.ti.com ELECTRICAL CHARACTERISTICS – POWER PATH AND CHARGE MANAGEMENT TPS65800 SLVS606C – SEPTEMBER 2005 – REVISED FEBRUARY 2007 Over recommended operating conditions (typical values at T J = 25°C), application circuit as in Figure 3 (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOLTAGE DETECTION THRESHOLDS Input Voltage detection AC detected at V(AC)– V(BAT) > VIN(DT); VIN(DT) 190 threshold USB detected at V(USB)– V(BAT) > VIN(DT) mV Input Voltage removal AC not detected at V(AC)– V(BAT) < VIN(NDT); VIN(NDT) 125 threshold USB not detected at V(USB)– V(BAT) < VIN(NDT) tDGL(NDT) Power not detected deglitch 22.5 ms Supplement detection VSUP(DT) Battery switch ON at V(BAT) – V(OUT) > VSUP(DT) 60 threshold mV Supplement not detected VSUP(NDT) Battery switch OFF at V(BAT)– V(OUT) < VSUP(NDT) 20 threshold POWER PATH INTEGRATED MOSFETs CHARACTERISTICS VACDO = V(AC)– V(OUT); V(AC) = 4.75 V AC input current limit set to 2.75 A VACDO AC switch dropout voltage 350 375 (typ), IO(OUT) = 1.0 A I(OUT) + I(BAT)= 0.5 A 175 190 VUSBDO = V(USB)– V(OUT); V(USB) = 4.6 V VUSBDO USB switch dropout voltage USB input current limit set to 2.75 A (typ) I(OUT) + I(BAT)= 0.1 A 35 45 mV Battery switch dropout VBATDODCH V(BAT): 3 V → V CH(REG), I(BAT) = –1 A 60 100 voltage, discharge Battery switch dropout VBATDOCH Charger on, V(BAT): 3 V → 4.2 V, I(BAT) = 1 A 60 100 voltage, charge POWER PATH INPUT CURRENT LIMIT Selected Input current limit, Selected input switch not in dropout, I2C settings: ISET2 = LO, IINP(LIM1) 80 100 applies to USB input only PSEL = LO mA Selected Input current limit, IINP(LIM2) 400 500 Selected input switch not in dropout, I2C settings: ISET2 = HI, PSEL = LO applies to USB input only Selected Input current limit, Selected input switch not in dropout, I2C settings: ISET2 = HI OR LO, IINP(LIM3) applies to either AC or USB 2.75 A PSEL = HI input SYSTEM REGULATION VOLTAGE VSYS(REG) = V(OUT), DPPM loop not active, selected input current limit not VSYS(REG) Output regulation voltage 4.6 4.7 V reached. Selected input voltage (AC or USB) > 5.1 V POWER PATH PROTECTION AND RECOVERY FUNCTIONS Input-to-output short-circuit VINOUTSH AC and USB switches set to OFF if V(OUT) < VINOUTSH 0.6 V detection threshold OUT short circuit recovery RSH(USBSH) V(OUT) < 1 V, internal resistor connected from USB to OUT 500 pullup resistor Ω OUT short circuit recovery RSH(ACSH) V(OUT) < 1 V, internal resistor connected from AC to OUT 500 pullup resistor Overvoltage detection Rising voltage, overvoltage detected when V(AC) > VOVP or 6 6.5 6.8 threshold V(USB) > VOVP VOVP V Overvoltage detection Falling voltage, relative to detection threshold 0.1 hysteresis Battery to Output short BAT switch set to OFF if V(BAT)-V(OUT)> VBATOUTSH 200 mV VBATOUTSH circuit detection threshold Battery-to-ouput short-circuit V(DPPM) < 1v, tBLK(SHBAT) = KBLK(SHBAT)× CDPPM, CDPPM capacitor is KBLK(SHBAT) 1 ms/nF blanking time constant connected from DPPM pin to AGND1 OUT short circuit recovery V(BAT) – V(OUT) > VBATOUTSH, 10 mA ISH(BAT) pullup current source internal current source connected between OUT and BAT BAT short circuit recovery V(BAT)< 1 V, RSH(BAT) 1 k Ω resistor Internal resistor connected from OUT to BAT Internal resistor connected from BAT to AGND1 when battery is not detected RDCH(BAT) BAT pulldown resistor 500 Ω by ANLG1 8 Submit Documentation Feedback |
Numéro de pièce similaire - TPS65800_07 |
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Description similaire - TPS65800_07 |
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