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bq24040 Datasheet(PDF) 8 Page - Texas Instruments |
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bq24040 Datasheet(HTML) 8 Page - Texas Instruments |
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8 / 38 page  bq24040, bq24041, bq24045 SLUS941F – SEPTEMBER 2009 – REVISED MARCH 2015 www.ti.com 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 BATTERY-PACK NTC MONITOR; TS Terminal: bq24040 / bq24045: 10k NTC INTC-10k NTC bias current VTS = 0.3V 48 50 52 μA 10k NTC bias current when Charging is INTC-DIS-10k VTS = 0V 27 30 34 μA disabled. INTC is reduced prior to entering TTDM to INTC-FLDBK-10k VTS: Set to 1.525V 4 5 6.5 μA keep cold thermistor from entering TTDM 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 INTC adjustment (90 to 10%; 45 to 6.6uS) takes place TS voltage where INTC is reduce to keep VTS_I-FLDBK near this spec threshold. 1475 mV thermistor from entering TTDM VTS: 1.425V → 1.525V CTS Optional Capacitance – ESD 0.22 μF Low Temp Charging to Pending; VTS-0°C Low temperature CHG Pending 1205 1230 1255 mV VTS: 1V → 1.5V Charge pending to low temp charging; VHYS-0°C Hysteresis at 0°C 86 mV VTS: 1.5V → 1V Normal charging to low temp charging; VTS-10°C Low temperature, half charge 765 790 815 mV VTS: 0.5V → 1V Low temp charging to normal CHG; VHYS-10°C Hysteresis at 10°C 35 mV VTS: 1V → 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 High temp charge to pending; VTS-60°C High temperature Disable 170 178 186 mV VTS: 0.2V → 0.1V Charge pending to high temp CHG; VHYS-60°C Hysteresis at 60°C 11.5 mV VTS: 0.1V → 0.2V VTS-EN-10k Charge Enable Threshold, (10k NTC) VTS: 0V → 0.175V; 80 88 96 mV VTS-DIS_HYS-10k HYS below VTS-EN-10k to Disable, (10k NTC) VTS: 0.125V → 0V; 12 mV THERMAL REGULATION TJ(REG) Temperature regulation limit 125 °C TJ(OFF) Thermal shutdown temperature 155 °C TJ(OFF-HYS) Thermal shutdown hysteresis 20 °C BAT_EN , bq24041 I BAT_EN Current Sourced out of terminal V BAT_EN < 1.4 V 2.3 5 9 μA VIL Logic LOW enables charger 0 0.4 V VIH Logic HIGH disables charger 1.1 6 V VCLAMP Floating Clamp Voltage Floating BAT_EN terminal 1.4 1.6 1.8 V LOGIC LIVELS ON ISET2 VIL Logic LOW input voltage Sink 8 μA 0.4 V VIH Logic HIGH input voltage Source 8 μA 1.4 V IIL Sink current required for LO VISET2 = 0.4V 2 9 μA IIH Source current required for HI VISET2 = 1.4V 1.1 8 μA VFLT ISET2 Float Voltage 575 900 1225 mV AUTO START, ASI AND ASO TERMINALS, bq24041 VASIL Has 200k Internal Pull-down 0.4 V VASIH 1.3 V VASOL Auto Start Output Sinks 1mA 0.4 V VASOH Auto Start Input Sources 1mA VOUT - 0.4 V LOGIC LEVELS ON CHG AND PG VOL Output LOW voltage ISINK = 5 mA 0.4 V ILEAK Leakage current into IC V CHG = 5V, VPG = 5V 1 µA 8 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: bq24040 bq24041 bq24045 |
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