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BQ30Z554-R1 数据表(PDF) 15 Page - Texas Instruments |
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BQ30Z554-R1 数据表(HTML) 15 Page - Texas Instruments |
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15 / 29 page  bq30z554-R1 www.ti.com SLUSBD4 – OCTOBER 2013 ELECTRICAL CHARACTERISTICS: SCD1 Current Protection (continued) Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°C to 85°C and VCC = 3.8 V to 25 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT t(DETECT) Current fault detect time VSRP-SRN = VTHRESH + 12.5 mV 160 µs Overcurrent and Short Circuit tACC Accuracy of typical delay time –20 20 % delay time accuracy ELECTRICAL CHARACTERISTICS: SCD2 Current Protection Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°C to 85°C and VCC = 3.8 V to 25 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT RSNS = 0 100 450 mV SCD2 detection threshold voltage V(SDC2) range, typical RSNS = 1 50 225 mV RSNS = 0 50 mV SCD2 detection threshold voltage ΔV(SCD2T) program step RSNS = 1 25 mV V(OFFSET) SCD2 offset –10 10 mV V(Scale_Err) SCD2 scale error –10 10 % AFE.STATE_CNTL[SCDDx2] = 0 0 458 µs t(SCD1D) Short Circuit in Discharge Delay AFE.STATE_CNTL[SCDDx2] = 1 0 915 µs AFE.STATE_CNTL[SCDDx2] = 0 30.5 µs t(SCD2D_STEP) SCD2D Step options AFE.STATE_CNTL[SCDDx2] = 1 61 µs VSRP – SRN = VTHRESH + t(DETECT) Current fault detect time 160 µs 12.5 mV Overcurrent and Short Circuit tACC Accuracy of typical delay time –20 20 % delay time accuracy ELECTRICAL CHARACTERISTICS: SCC Current Protection Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°C to 85°C and VCC = 3.8 V to 25 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT RSNS = 0 –100 –300 mV SCC detection threshold voltage V(SCCT) range, typical RSNS = 1 –50 –225 mV RSNS = 0 –50 mV SCC detection threshold voltage ΔV(SCCDT) program step RSNS = 1 –25 mV V(OFFSET) SCC offset –10 10 mV V(Scale_Err) SCC scale error –10 10 % t(SCCD) Short Circuit in Charge Delay 0 915 ms t(SCCD_STEP) SCCD Step options 61 ms VSRP – SRN = VTHRESH + t(DETECT) Current fault detect time 160 µs 12.5 mV Overcurrent and Short Circuit tACC Accuracy of typical delay time –20 20 % delay time accuracy ELECTRICAL CHARACTERISTICS: SBS Timing Characteristics Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°C to 85°C and VCC = 3.8 V to 25 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SLAVE mode, SMBC 50% duty fSMB SMBus operating frequency 10 100 kHz cycle MASTER mode, no clock low slave fMAS SMBus master clock frequency 51.2 kHz extend Copyright © 2013, Texas Instruments Incorporated Submit Documentation Feedback 15 Product Folder Links :bq30z554-R1 |
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