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TPS65721 Datasheet(PDF) 8 Page - Texas Instruments |
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TPS65721 Datasheet(HTML) 8 Page - Texas Instruments |
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8 / 50 page  TPS65720 TPS65721 SLVS979 – OCTOBER 2009 www.ti.com ELECTRICAL CHARACTERISTICS (continued) VSYS = 3.6V, VDCDC1 = 2.05V, PFM mode, L = 3.3μH, COUTDCDC1 = 4.7μF, VINLDO1=2.05V, VLDO1=1.85V, TA = –40°C to 85°C typical values apply in a temperature range of 10°C to 35°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT BATTERY-PACK NTC MONITOR Thermistor high temperature detection resistance 4.3 5 5.7 k Ω (equals 45°C for 10k NTC; B=3380) Thermistor high temperature detection resistance 3.5 4.1 4.8 k Ω (equals 50°C for 10k NTC; B=3380) Thermistor high temperature detection resistance 2.9 3.5 4.2 k Ω (equals 55°C for 10k NTC; B=3380 ) Thermistor high temperature detection resistance 2.4 3 3.5 k Ω (equals 60°C for 10k NTC; B=3380) Hot temperature detected and charging suspended when the RNTCHOT resistance of the battery-NTC is lower than RNTCHOT Thermistor high temperature detection resistance 43 50 57 k Ω (equals 45°C for 100k NTC) Thermistor high temperature detection resistance 35 41 48 k Ω (equals 50°C for 100k NTC) Thermistor high temperature detection resistance 29 35 42 k Ω (equals 55°C for 100k NTC) Thermistor high temperature detection resistance 24 30 35 k Ω (equals 60°C for 100k NTC) Thermistor low temperature detection resistance 25 27 30 k Ω (equals 0°C for 10k NTC; B=3380) Thermistor low temperature detection resistance 20 22 24 k Ω (equals 5°C for 10k NTC; B=3380) Thermistor low temperature detection resistance 16 18 20 k Ω (equals 10°C for 10k NTC; B=3380 ) Thermistor low temperature detection resistance 13 15 16 k Ω (equals 15°C for 10k NTC; B=3380) Cold temperature detected and charging suspended when the RNTCCOLD resistance of the battery-NTC is higher than RNTCCOLD Thermistor low temperature detection resistance 250 270 300 k Ω (equals 0°C for 100k NTC) Thermistor low temperature detection resistance 200 220 240 k Ω (equals 5°C for 100k NTC) Thermistor low temperature detection resistance 160 180 200 k Ω (equals 10°C for 100k NTC) Thermistor low temperature detection resistance 130 150 160 k Ω (equals 15°C for 100k NTC) VHYS(COLD) Low temperature trip point hysteresis For 10k NTC; B=3380 5 °C Thermistor not detected for 10k NTC 260 340 620 k Ω Hot temperature detected and charging suspended when the RNOSENSOR resistance of the battery-NTC is higher than RNOSENSOR Thermistor not detected for 100k NTC 2500 3400 6200 k Ω tDGL(TS) Deglitch time, pack temperature fault detection 50 ms THERMAL REGULATION TJ(REG) Lower Temperature regulation limit 115 °C TJ(REG) Upper Temperature regulation limit 135 °C TJ(OFF) Thermal shutdown temperature 155 °C TJ(OFF-HYS) Thermal shutdown hysteresis 20 °C 8 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): TPS65720 TPS65721 |
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