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BQ24090DGQT Datasheet(PDF) 5 Page - Texas Instruments |
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BQ24090DGQT Datasheet(HTML) 5 Page - Texas Instruments |
5 / 32 page bq24090, bq24091 bq24092, bq24093 www.ti.com SLUS968A – JANUARY 2010 – REVISED FEBRUARY 2010 ELECTRICAL CHARACTERISTICS (continued) Over junction temperature range 0°C ≤ TJ ≤ 125°C and recommended supply voltage (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT RECHARGE OR REFRESH Recharge detection threshold – VO(REG) VO(REG)- VIN = 5V, VTS = 0.5V, VOUT: 4.25V → VRCH VO(REG)-0.095 V Normal Temp -0.120 0.070 VRCH Recharge detection threshold – Hot VO(REG) VO(REG)- VIN = 5V, VTS = 0.2V, VOUT: 4.15V → VRCH VO(REG)-0.105 V Temp -0.130 0.080 Deglitch time, recharge threshold VIN = 5V, VTS = 0.5V, VOUT: 4.25V → 3.5V in 1ms; tDGL1(RCH) 29 ms detected tDGL(RCH) is time to ISET ramp Deglitch time, recharge threshold VIN = 5V, VTS = 0.5V, VOUT = 3.5V inserted; tDGL(RCH) tDGL2(RCH) 3.6 ms detected in OUT-Detect Mode is time to ISET ramp BATTERY DETECT ROUTINE VOUT Reduced regulation during VO(REG) VO(REG)- VREG-BD VO(REG)-0.400 V battery detect -0.450 350 IBD-SINK Sink current during VREG-BD VIN = 5V, VTS = 0.5V, Battery Absent 7 10 mA tDGL(HI/LOW Regulation time at VREG or VREG-BD 25 ms REG) VO(REG) VO(REG)- VBD-HI High battery detection threshold VIN = 5V, VTS = 0.5V, Battery Absent VO(REG)-0.100 V -0.150 0.050 VREG-BD VREG-BD VBD-LO Low battery detection threshold VIN = 5V, VTS = 0.5V, Battery Absent VREG-BD +0.1 V +0.50 +0.15 BATTERY CHARGING TIMERS AND FAULT TIMERS Restarts when entering Pre-charge; Always enabled tPRECHG Pre-charge safety timer value 1700 1940 2250 s when in pre-charge. Clears fault or resets at UVLO, TS/BAT_EN disable, tMAXCH Charge safety timer value 34000 38800 45000 s OUT Short, exiting LOWV and Refresh BATTERY-PACK NTC MONITOR (Note 1); TS pin: 10k and 100k NTC INTC-10k NTC bias current, bq24090/2 VTS = 0.3V 48 50 52 mA INTC-100k NTC bias current, bq24091/3 VTS = 0.3V 4.8 5.0 5.2 mA 10k NTC bias current when Charging INTC-DIS-10k VTS = 0V 27 30 34 mA is disabled, bq24090/2 10k NTC bias current when Charging INTC-DIS-100k VTS = 0V 4.4 5.0 5.8 mA is disabled, bq24091/3 INTC is reduced prior to entering INTC-FLDBK-10k TTDM to keep cold thermistor from VTS: Set to 1.525V 4 5 6.5 mA entering TTDM, bq24090/2 INTC is reduced prior to entering INTC-FLDBK-100k TTDM to keep cold thermistor from VTS: Set to 1.525V 1.1 1.5 1.9 mA entering TTDM, bq24091/3 Termination and timer disable mode VTTDM(TS) VTS: 0.5V → 1.7V; Timer Held in Reset 1550 1600 1650 mV Threshold – Enter VHYS-TTDM(TS) Hysteresis exiting TTDM VTS: 1.7V → 0.5V; Timer Enabled 100 mV VCLAMP(TS) TS maximum voltage clamp VTS = Open (Float) 1800 1950 2000 mV Deglitch exit TTDM between states 57 ms tDGL(TTDM) Deglitch enter TTDM between states 8 ms INTC adjustment (90 to 10%; 45 to 6.6uS) takes TS voltage where INTC is reduce to VTS_I-FLDBK place near this spec threshold. VTS: 1.425V → 1475 mV keep thermistor from entering TTDM 1.525V CTS Optional Capacitance – ESD 0.22 mF Low Temp Charging to Pending; VTS-0°C Low temperature CHG Pending 1205 1230 1255 mV VTS: 1.0V → 1.5V Charge pending to low temp charging; VHYS-0°C Hysteresis at 0°C 86 mV VTS: 1.5V → 1V Low temperature, half charge, Normal charging to low temp charging; VTS-10°C 765 790 815 mV bq24092/3 VTS: 0.5V → 1V Low temp charging to normal CHG; VHYS-10°C Hysteresis at 10°C, bq24092/3 35 mV VTS: 1.0V → 0.5V Normal charging to high temp CHG; VTS-45°C High temperature at 4.1V 263 278 293 mV VTS: 0.5V → 0.2V High temp charging to normal CHG; VHYS-45°C Hysteresis at 45°C 10.7 mV VTS: 0.2V → 0.5V Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): bq24090 bq24091 |
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