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BQ40Z50-R1 数据表(PDF) 23 Page - Texas Instruments |
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BQ40Z50-R1 数据表(HTML) 23 Page - Texas Instruments |
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23 / 56 page  bq40z50-R1 www.ti.com SLUSCB3 – JULY 2015 8.3 Feature Description 8.3.1 Primary (1st Level) Safety Features The bq40z50-R1 supports a wide range of battery and system protection features that can easily be configured. See the bq40z50-R1 Technical Reference Manual (SLUUBC1) for detailed descriptions of each protection function. The primary safety features include: • Cell Overvoltage Protection • Cell Undervoltage Protection • Cell Undervoltage Protection Compensated • Overcurrent in Charge Protection • Overcurrent in Discharge Protection • Overload in Discharge Protection • Short Circuit in Charge Protection • Short Circuit in Discharge Protection • Overtemperature in Charge Protection • Overtemperature in Discharge Protection • Undertemperature in Charge Protection • Undertemperature in Discharge Protection • Overtemperature FET protection • Precharge Timeout Protection • Host Watchdog Timeout Protection • Fast Charge Timeout Protection • Overcharge Protection • Overcharging Voltage Protection • Overcharging Current Protection • Over Precharge Current Protection 8.3.2 Secondary (2nd Level) Safety Features The secondary safety features of the bq40z50-R1 can be used to indicate more serious faults via the FUSE pin. This pin can be used to blow an in-line fuse to permanently disable the battery pack from charging or discharging. See the bq40z50-R1 Technical Reference Manual (SLUUBC1) for detailed descriptions of each protection function. The secondary safety features provide protection against: • Safety Overvoltage Permanent Failure • Safety Undervoltage Permanent Failure • Safety Overtemperature Permanent Failure • Safety FET Overtemperature Permanent Failure • Qmax Imbalance Permanent Failure • Impedance Imbalance Permanent Failure • Capacity Degradation Permanent Failure • Cell Balancing Permanent Failure • Fuse Failure Permanent Failure • PTC Permanent Failure • Voltage Imbalance at Rest Permanent Failure • Voltage Imbalance Active Permanent Failure • Charge FET Permanent Failure • Discharge FET Permanent Failure • AFE Register Permanent Failure • AFE Communication Permanent Failure Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 23 Product Folder Links: bq40z50-R1 |
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