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参数资料
| 型号： | BQ78PL116EVM |
| 厂商： | Texas Instruments |
| 文件页数： | 12/35页 |
| 文件大小： | 0K |
| 描述： | EVAL MODULE FOR BQ78PL116 |
| 标准包装： | 1 |
| 系列： | * |
| 其它名称： | 296-30796 BQ78PL116EVM-ND |
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SLUSAB8B – OCTOBER 2010 – REVISED FEBRUARY 2011
FEATURE SET
Primary (First-Level) Safety Features
The bq78PL116 implements a breadth of system protection features which are easily configured by the
customer. First-level protections work by controlling the MOSFET switches. These include:
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Battery cell over/undervoltage protection
Pack over/undervoltage protection
Charge and discharge overcurrent protection
Short-circuit protection
External MOSFET control inputs (EFCIx) with programmable polarity
Up to four external temperature inputs for accurate cell and MOSFET monitoring
Watchdog timer protection
Brownout detection and protection against extreme pack undervoltage
Secondary (Second-Level) Safety Features
The bq78PL116 can detect more serious system faults and activate the SPROT pin, which can be used to open
an in-line chemical fuse to permanently disable the pack. Secondary optional features include
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Fully independent of first-level protections
SmartSafety algorithms for early detection of potential faults
– Temperature abnormalities (extremes, rate of change)
– Cell imbalance exceeds safety limits
– Impedance rise due to cell or weld strap fault
MOSFET failure or loss of MOSFET control
Safety overvoltage, pack and cell
Safety overtemperature, limits for both charge and discharge
Safety overcurrent, charge and discharge
Failed current measurement, voltage measurement, or temperature measurement
Charge Control Features
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Meets SMBus 1.1 and Smart Battery System (SBS) Specification 1.1 requirements
Active cell balancing using patented PowerPump technology, which eliminates unrecoverable capacity loss
due to normal cell imbalance
Simultaneous, synchronous measurement of all cell voltages in a pack
Simultaneous, synchronous measurement of pack current with cell voltages
Reports target charging current and/or voltage to an SBS Smart Charger
Reports the chemical state-of-charge for each cell and pack
Supports precharging and zero-volt charging with separate MOSFET control
Programmable, Chemistry-specific parameters
Fault reporting
Gas Gauging
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The bq78PL116 accurately reports battery cell and pack state-of-charge (SOC). No full charge/discharge
cycle is required for accurate reporting.
State-of-charge is reported via SMBus and optional display.
18-bit integrating delta-sigma ADC coulomb counter
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Product Folder Link(s): bq78PL116
? 2010 – 2011, Texas Instruments Incorporated
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