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BQ24070RHLT Datasheet(PDF) 6 Page - Texas Instruments |
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BQ24070RHLT Datasheet(HTML) 6 Page - Texas Instruments |
6 / 33 page bq24070, bq24071 SLUS694G – MARCH 2006 – REVISED DECEMBER 2014 www.ti.com Electrical Characteristics (continued) over junction temperature range (0°C ≤ TJ ≤ 125°C) and the recommended supply voltage range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OUT PIN - BATTERY SUPPLEMENT MODE Enter battery supplement mode VI(OUT) VBSUP1 (battery supplements OUT current VI(BAT)> 2 V ≤ VI(BAT) in the presence of input source – 60 mV V VI(OUT) VBSUP2 Exit battery supplement mode VI(BAT)> 2 V ≥ VI(BAT) – 20 mV OUT PIN - SHORT CIRCUIT Current source between BAT to OUT for IOSH1 BAT to OUT short-circuit recovery short-circuit recovery to 10 mA VI(OUT) ≤ VI(BAT) –200 mV RSHIN IN to OUT short-circuit limit VI(OUT) ≤ 1 V 500 Ω BAT PIN CHARGING – PRECHARGE Precharge to fast-charge transition V(LOWV) Voltage on BAT 2.9 3 3.1 V threshold Deglitch time for fast-charge to tFALL = 100 ns, 10 mV overdrive, TDGL(F) 22.5 ms precharge transition(4) VI(BAT) decreasing below threshold 1 V < VI(BAT) < V(LOWV), t < t(PRECHG), IO(PRECHG) Precharge range 10 150 mA IO(PRECHG) = (K(SET) × V(PRECHG))/ RSET V(PRECHG) Precharge set voltage 1 V < VI(BAT) < V(LOWV), t < t(PRECHG) 225 250 275 mV BAT PIN CHARGING - CURRENT REGULATION VI (BAT) > V(LOWV), Mode = High IO(BAT) Battery charge current range(5) IOUT(BAT) = (K(SET) × V(SET) / RSET), 100 1000 1500 mA VI(OUT) > VO(OUT-REG) + V(DO-MAX) RPBAT BAT to OUT pullup VI (BAT)< 1 V 1000 Ω Voltage on ISET1, VVCC ≥ 4.35 V, Battery charge current set V(SET) VI(OUT)- VI(BAT) > V(DO-MAX), 2.47 2.50 2.53 V voltage(6) VI(BAT) > V(LOWV) 100 mA ≤ IO(BAT) ≤ 1.5 A 375 425 450 K(SET) Charge current set factor, BAT 10 mA ≤ IO(BAT) ≤ 100 mA (7) 300 450 600 USB MODE INPUT CURRENT LIMIT ISET2 = Low 80 90 100 I(USB) USB input port current range mA ISET2 = High 400 500 BAT PIN CHARGING VOLTAGE REGULATION, VO (BAT-REG) + V (DO-MAX) < VCC, ITERM < IBAT(OUT) ≤ 1 A Battery charge voltage 4.2 V VO(BAT-REG) TA = 25°C –0.5% 0.5% Battery charge voltage regulation accuracy –1% 1% CHARGE TERMINATION DETECTION Charge termination detection VI(BAT) > V(RCH), I(TERM) 10 150 mA range I(TERM) = (K(SET) × V(TERM))/ RSET VI(BAT) > V(RCH) , Mode = High 230 250 270 Charge termination set voltage, V(TERM) mV measured on ISET1 VI(BAT) > V(RCH) , Mode = Low 95 100 130 tFALL = 100 ns, 10 mV overdrive, Deglitch time for termination TDGL(TERM) ICHG increasing above or decreasing below 22.5 ms detection threshold TEMPERATURE SENSE COMPARATORS VLTF High voltage threshold Temp fault at V(TS) > VLTF 2.465 2.500 2.535 V VHTF Low voltage threshold Temp fault at V(TS) < VHTF 0.485 0.500 0.515 V ITS Temperature sense current source 94 100 106 μA R(TMR) = 50 kΩ, VI(BAT) increasing or Deglitch time for temperature fault TDGL(TF) decreasing above and below; 22.5 ms detection(4) 100-ns fall time, 10-mv overdrive (4) All deglitch periods are a function of the timer setting and is modified in DPPM or thermal regulation modes by the percentages that the program current is reduced. (5) When input current remains below 2 A, the battery charging current may be raised until the thermal regulation limits the charge current. (6) For half-charge rate, V(SET) is 1.25 V ± 25 mV. (7) Specification is for monitoring charge current through the ISET1 pin during voltage regulation mode, not for a reduced fast-charge level. 6 Submit Documentation Feedback Copyright © 2006–2014, Texas Instruments Incorporated Product Folder Links: bq24070 bq24071 |
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