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BQ24271YFFR Datasheet(PDF) 6 Page - Texas Instruments |
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BQ24271YFFR Datasheet(HTML) 6 Page - Texas Instruments |
6 / 38 page bq24270 bq24271 SLUSB10 – JUNE 2012 www.ti.com ELECTRICAL CHARACTERISTICS (continued) Circuit of Figure 3, V(UVLO) < V(USB) < V(OVP) AND V(USB) > V(BAT)+V(SLP), TJ = 0°C–125°C and TJ = 25°C for typical values (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT BATTERY-PACK NTC MONITOR VHOT High temperature threshold V(TS) falling 29.7 30 30.5 %VDRV VHOT(HYS) Hysteresis on high threshold V(TS) rising 1 VWARM High temperature threshold V(TS) falling 37.9 38.3 39.6 %VDRV VWARM(HYS) Hysteresis on high threshold V(TS) rising 1 VCOOL Low temperature threshold V(TS) rising 56 56.5 56.9 %VDRV VCOOL(HYS) Hysteresis on low threshold V(TS) falling 1 VCOLD Low temperature threshold V(TS) rising 59.5 60 60.4 %VDRV VCOLD(HYS) Hysteresis on low threshold V(TS) falling 1 TSOFF TS Disable threshold V(TS) rising, 2% V(DRV) Hysteresis 70 73 %VDRV tDGL(TS) Deglitch time on TS change 50 ms D+/D- Detection (bq24270) VD+_SRC D+ Voltage Source 0.5 0.6 0.7 V D+ Connection Check Current ID+_SRC 7 14 µA Source ID-_SINK D- Current Sink 50 100 150 µA D-, switch open –1 1 µA ID_LKG Leakage Current into D+/D- D+, switch open –1 1 µA VD+_LOW D+ Low Comparator Threshold 0.8 V VD-_LOW D- Low Comparator Threshold 250 400 mV RD-_DWN D- Pulldown for Connection Check 14.25 24.8 k Ω BATGD Operation VBATGD Good Battery threshold 3.6 3.8 3.9 V Deglitch for good battery threshold V(BAT) rising to HIGH-Z mode, DEFAULT Mode Only 32 ms I 2C Compatible Interface VIH Input high threshold level V(PULL-UP) = 1.8 V, SDA and SCL 1.3 V VIL Input low threshold level V(PULL-UP) = 1.8 V, SDA and SCL 0.4 V VOL Output low threshold level IL = 10 mA, sink current 0.4 V IBIAS High-Level leakage current V(PULL-UP) = 1.8 V, SDA and SCL 1 µA tWATCHDOG Watchdog Timer timeout 30 s 6 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated Product Folder Link(s): bq24270 bq24271 |
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