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TPS65012 Datasheet(PDF) 7 Page - Texas Instruments |
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TPS65012 Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 51 page  www.ti.com (4) I (TERM) + KSET V (SET_TERM) R (ISET) TPS65012 SLVS504A – MARCH 2004 – REVISED JANUARY 2005 ELECTRICAL CHARACTERISTICS (continued) Battery Charger, V O(REG) + V(DO-MAX) ≤ V(CHG) = V(AC) or V(USB), I(TERM) < IO≤ 1 A, 0°C < TA< 85°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V(SET_TAPER) Voltage at ISET pin for charge TAPER detection VI(OUT) > V(RCH), t < t(TAPER) 235 250 265 mV Voltage at ISET pin for charger termination V(SET_TERM) VI(OUT) > V(RCH) 11 18 25 mV detection(4) V(CHG) min ≥ 4.5 V, charging current increasing or decreasing above and De-glitch time for I(TAPER) 250 375 500 ms below; 100-ns fall time, 10-mV overdrive V(CHG) min ≥ 4.5 V, charging current De-glitch time for I(TERM) decreasing below;100-ns fall time, 250 375 500 ms 10-mV overdrive TEMPERATURE COMPARATOR V(LTF) Low (cold) temperature threshold 2.475 2.50 2.525 V V(HTF) High (hot) temperature threshold 0.485 0.5 0.515 V I(TS) TS current source 95 102 110 µA De-glitch time for temperature fault 250 375 500 ms BATTERY RECHARGE THRESHOLD VO(REG) VO(REG) VO(REG) V(RCH) Recharge threshold V(CHG) min≥ 4.5 V V -0.115 -0.1 -0.085 V(CHG) min ≥ 4.5 V, VI(OUT) de- De-glitch time creasing below threshold; 100-ns fall 250 375 500 ms time, 10-mV overdrive TIMERS t(PRECHG) Precharge timer V(CHG) min ≥ 4.5 V 1500 1800 2160 s t(TAPER) Taper timer V(CHG) min≥ 4.5 V 1500 1800 2160 s t(CHG) Charge timer V(CHG) min≥ 4.5 V 15000 18000 21600 s SLEEP AND STANDBY V(CHG)≤ V(SLP-ENTRY) Sleep-mode entry threshold, PG output = high 2.3 V ≤ V I(OUT) ≤ VO(REG) VI(OUT) V +150 mV V(CHG)≥ V(SLP_EXIT) Sleep-mode exit threshold,PG output = low 2.3 V ≤ V I(OUT) ≤ VO(REG) VI(OUT)+19 V 0 mV AC or USB decreasing below De-glitch time for sleep mode entry and exit threshold; 100-ns fall time, 10-mV 200 375 500 ms overdrive Delay between valid USB voltage being applied t(USB_DEL) 375 ms and start of charging process from USB CHARGER POWER-ON-RESET, UVLO, AND V(IN) RAMP RATE V(CHGUVLO) Charger under-voltage lockout V(CHG) decreasing 2.27 2.5 2.75 V Hysteresis 27 mV V(CHGOVLO) Charger over-voltage lockout V(AC) increasing 6.6 V Hysteresis 0.5 V CHARGER OVER TEMPERATURE SUSPEND Temperature at which charger suspends T(suspend) 145 °C operation T(hyst) Hysteresis of suspend threshold 20 °C LOGIC SIGNALS DEFMAIN, DEFCORE, PS_SEQ, IFLSB VIH High level input voltage IIH = 20 µA VCC-0.5 VCC V VIL Low level input voltage IIL = 10 µA 0 0.4 V IIB Input bias current 0.01 1.0 µA LOGIC SIGNALS GPIO1-4 IOL = 1 mA, configured as an VOL Low level output voltage 0.3 V open-drain output 7 |
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