BQ78PL114RGZR ,PowerLAN Gateway Battery Management Controller with PowerPump Cell Balancing 48-VQFN -40 to 85Features:– Prevention: Optimal Cell ManagementAPPLICATIONS– Diagnosis: Improved Sensing of Cell• Po ..
BQ78PL116RGZR ,PowerLAN Master Gateway Controller With PowerPump Cell Balancing Technology 48-VQFN -40 to 85These devices have limited built-in ESD protection. The leads should be shorted together or the dev ..
BQ78PL116RGZT ,PowerLAN Master Gateway Controller With PowerPump Cell Balancing Technology 48-VQFN -40 to 85Features:• Portable Medical Instruments and Test– Prevention: Optimal Cell ManagementEquipment– Dia ..
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BQ78PL114RGZR
PowerLAN Gateway Battery Management Controller with PowerPump Cell Balancing 48-VQFN -40 to 85
1FEATURES
APPLICATIONS
DESCRIPTION
bq78PL114
www.ti.com................................................................................................................................................ SLUS850B–SEPTEMBER 2008–REVISED APRIL 2009
PowerLAN™ Master Gateway Battery Management Controller
With PowerPump™ Cell Balancing Technology bq78PL114S12:< 300 μA
Active,< 185 μA
Standby,<85 μA
Ship, and<1 μA
23• bq78PL114 Designed for Managing3-to
Undervoltage Shutdown8-Series-Cell Battery Systems Accurate, Advanced Temperature Monitoring•
bq78PL114S12 Firmware Upgrade Supports3- of Cells and MOSFETs With upto12 Sensorsto 12-Series-Cell Battery Systems Fail-Safe Operationof Pack Protection– Adds Support for LCD and Electronic Paper
Circuits: Upto Three Power MOSFETs andDisplaysor EPDs
One Secondary Safety Output (Fuse)– Configurable for 11-A, 26-A,or 110-A •
Fully Programmable Voltage, Current, Balance,Operating Currents
and Temperature-Protection Features•
Systems With More Than Four Series Cells •
External Inputs for Auxiliary MOSFET ControlRequire External bq76PL102 Dual-Cell
Monitors •
Smart Battery System 1.1 Compliant via
SMBus•
SmartSafety Features: Prevention: Optimal Cell Management Diagnosis: Improved Sensingof Cell •
Portable Medical Instruments and TestProblems Equipment– Fail Safe: Detectionof Event Precursors •
Mobility Devices (E-Bike)•
Rate-of-Change Detectionof All Important Cell •
Uninterruptible Power Supplies and Hand-HeldCharacteristics: Tools Voltage Impedance Cell Temperature The bq78PL114 master gateway battery controlleris
partofa complete Li-Ion control, monitoring, and•
PowerPump Technology Transfers Charge safety solution designed for large series cell strings.
Efficiently From Cellto Cell During All
Operating Conditions, Resultingin Longer The bq78PL114 and bq78PL114S12 along with
bq76PL102 PowerLAN™ dual-cell monitors provide
Run Time and Cell Lifecomplete battery-system control, communications,
– bq78PL114S12 Adds User-Configurable and safety functions fora structureof three upto
PowerPump Cell-Balancing Modes twelve series cells. This PowerLAN system provides•
High-Resolution 18-Bit Integrating Delta-Sigma simultaneous, synchronized voltage and current
Coulomb Counter for Precise Charge-Flow measurements using one A/D per-cell technology.
Measurements and Gas Gauging This eliminates system-induced noise from
measurements and allows the precise, continuous,•
Multiple Independent Δ-Σ ADCs: One-per-Cell real-time calculation of cell impedance under all
Voltage, Plus Separate Temperature, Current, operating conditions, even during widely fluctuating
and Safety load conditions.•
Simultaneous, Synchronous Measurementof PowerPump technology transfers charge between
Pack Current and Individual Cell Voltages cellsto balance their voltage and capacity. Balancing•
Very Low Power Consumption is possible during all battery modes: charge,
bq78PL114:< 250 μA
Active,< 150 μA discharge, and rest. Highly efficient charge-transfer
Standby,<40 μA
Ship, and<1 μA circuitry nearly eliminates energy loss while providing
true real-time balance between cells, resultingin
Undervoltage Shutdownlonger run-time and improved cycle life.
