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TPS65070 Datasheet(PDF) 11 Page - Texas Instruments |
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TPS65070 Datasheet(HTML) 11 Page - Texas Instruments |
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11 / 93 page  TPS65070, TPS65072, TPS65073 TPS650731, TPS650732 www.ti.com SLVS950B – JULY 2009 – REVISED DECEMBER 2009 POWER PATH (continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TDGL(DT) Power detected deglitch AC or USB voltage increasing 22.5 ms VIN(OVP) Input over voltage detection threshold 5.8 6 6.3 V POWER PATH TIMING TSW(ACBAT) Switching from AC to BAT No USB, AC power removed 200 μs SW(USBBAT) T Switching from USB to BAT No AC, USB power removed 200 μs TSW(PSEL) Switching from USB to AC I2C 150 μs TSW(ACUSB) Switching from AC/ USB, USB / AC AC power removed or USB power removed 200 μs Measured from power applied to start of TSYSOK SYS power up delay 11 ms power-up sequence POWER PATH INTEGRATED MOSFETS CHARACTERISTICS AC Input switch dropout voltage (ILIMITAC set = 2.5 A I(SYS) = 1 A) 150 mV ILIMITUSB = 1300 mA I(SYS) = 500 mA 100 USB input switch dropout voltage mV ILIMITUSB = 1300 mA I(SYS) = 800 mA 160 Battery switch dropout voltage V(BAT) = 3.0 V, I(BAT) = 1 A 85 100 mV Input Current Limit IUSB100 Input current limit; USB pin USB input current [0,0] 90 100 mA IUSB500 Input current limit; USB pin USB input current [0,1] (default) 450 500 mA IUSB800 Input current limit; USB pin USB input current [1,0] 700 800 mA IUSB1300 Input current limit; USB pin USB input current [1,1] 1000 1300 mA IAC100 Input current limit; AC pin AC input current [0,0] 90 100 mA IAC500 Input current limit; AC pin AC input current [0,1] 450 500 mA IA1300 Input current limit; AC pin AC input current [1,0] 1000 1300 mA IAC2500 Input current limit; AC pin AC input current [1,1] (default) 2000 2500 mA POWER PATH SUPPLEMENT DETECTION PROTECTION AND RECOVERY FUNCTIONS VOUT ≤ VBAT – VBSUP1 Enter battery supplement mode AC input current set to 10: 1.3A 45 mV VOUT ≥ VBAT – VBSUP2 Exit battery supplement mode 35 mV All power path switches set to OFF if V VSYS < VSYS(SC1) Sys short-circuit detection threshold, power-on 1.4 1.8 2.0 V VSYS(SC1) Short circuit detection threshold hysteresis 50 mV Internal resistor connected from AC to SYS; RFLT(AC) Sys Short circuit recovery pull-up resistors 500 Ω Specified by design Internal resistor connected from USB to SYS; RFLT(USB) Sys Short circuit recovery pull-up resistors 500 Ω Specified by design Output short-circuit detection threshold, supplement VSYS(SC2) 200 250 300 mV mode VBAT – VSYS > VO(SC2) indicates short-circuit tDGL(SC2) Deglitch time, supplement mode short circuit 120 μs tREC(SC2) Recovery time, supplement mode short circuit 60 ms VBAT(SC) BAT pin short-circuit detection threshold 1.4 1.8 2.0 V IBAT(SC) Source current for BAT pin short-circuit detection 4 7.5 11 mA DPPM LOOP(1) Threshold at which DPPM loop is enabled. This is 3.5 Set with Bits the approximate voltage at SYS pin, when the USB 3.75 VDPM <PowerPath DPPM threshold1>; V or AC switch reaches current limit and the charging 4.25 <PowerPath DPPM threshold0> current is reduced; Selectable by I2C 4.50 (1) If the DPPM threshold is lower than the battery voltage, supplement mode will be engaged first and the SYS voltage will chatter around the battery voltage; during that condition no DPPM mode is available. Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Link(s): TPS65070 TPS65072 TPS65073 TPS650731, TPS650732 |
Similar Part No. - TPS65070_10 |
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