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bq24079TRGTT Datasheet(PDF) 5 Page - Texas Instruments |
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bq24079TRGTT Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 29 page  bq24075T bq24079T www.ti.com SLUS937 – DECEMBER 2009 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 Deglitch time on pre-charge to fast-charge tDGL1(LOWV) 25 ms transition Deglitch time on fast-charge to pre-charge tDGL2(LOWV) 25 ms transition VBAT(REG) > VBAT > VLOWV, VIN = 5V, CE = ICHG Battery fast charge current range 300 1500 mA LO, EN1= LO, EN2 = HI CE = LO, EN1= LO, EN2 = HI, VBAT > VLOWV, ICHG Battery fast charge current KISET/RISET A VIN = 5V, IIN-MAX > ICHG, no load on OUT pin, thermal loop not active, DPM loop not active KISET Fast charge current factor 797 890 975 A Ω IPRECHG Pre-charge current KPRECHG /RISET A kPRECHG Pre-charge current factor 70 88 106 CE = LO, (EN1,EN2) ≠(LO,LO), VBAT > VRCH, t < tMAXCH, VIN = 5V, DPM loop 0.09×ICHG 0.1×ICHG 0.11×ICHG not active, thermal loop not active Charge current value for termination detection ITERM threshold CE = LO, (EN1,EN2)=(LO,LO), .033×ICH VBAT > VRCH, t < tMAXCH, VIN = 5V, DPM loop 0.027×ICHG 0.040×ICHG G not active, thermal loop not active tDGL(TERM) Deglitch time, termination detected 25 ms VO(REG) VO(REG) VO(REG) VRCH Recharge detection threshold V –140mV –100mV –60mV tDGL(RCH) Deglitch time, recharge threshold detected 62.5 ms VBAT = 3.6V. Time measured from VIN: tDGL(NO-IN) Delay time, input power loss to charger turn-off 20 ms 5V → 3.3V 1μs fall-time IBAT(DET) Sink current for battery detection 5 7.5 10 mA tDET Battery detection timer 250 ms BATTERY CHARGING TIMERS tPRECHG Pre-charge safety timer value TMR = floating 1440 1800 2160 s tMAXCH Charge safety timer value TMR = floating 14400 18000 21600 s tPRECHG Pre-charge safety timer value(externally set) 18k Ω < RTMR < 72kΩ RTMR x KTMR s tMAXCH Charge safety timer value (externally set) 18k Ω < RTMR < 72kΩ 10 x RTMR x KTMR s KTMR Timer factor 35 45 55 s / k Ω BATTERY – PACK NTC MONITOR % of VHOT High temperature trip point Battery charging 12 12.5 13 VIN % of VHYS(HOT) Hysteresis on high trip point Battery charging 1 VIN % of VCOLD Low temperature trip point Battery charging 24.5 25 25.5 VIN % of VHYS(COLD) Hysteresis on low trip point Battery charging 1 VIN tDGL(TS) Deglitch time, pack temperature fault detection Battery charging 50 ms THERMAL REGULATION TJ(REG) Temperature Regulation Limit 125 °C TJ(OFF) Thermal shutdown temperature 155 °C TJ(OFF-HYS) Thermal shutdown hysteresis 20 °C LOGIC LEVELS ON EN1, EN2, CE, SYSOFF, TD VIL Logic LOW input voltage 0 0.4 V VIH Logic HIGH input voltage 1.4 6.0 V IIL 1 μA IIH 10 μA LOGIC LEVELS ON PGOOD, CHG VOL Output LOW voltage ISINK = 5 mA 0.4 V Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): bq24075T bq24079T |
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