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The bq78PL116EVMbq78PL116EVM Evaluation Module can assist users in evaluating the bq78PL116 PowerLAN
The bq78PL116 master gateway battery controller is part of a complete Li-Ion control, monitoring, and safety solution designed for large series cell strings.The bq78PL116 along with bq76PL102 PowerLAN
This PowerLAN system provides simultaneous, synchronized voltage and current measurements using one A/D per-cell technology. This eliminates system-induced noise from measurements and allows the precise, continuous, real-time calculation of cell impedance under all operating conditions, even during widely fluctuating load conditions.
PowerPump technology transfers charge between cells to balance their voltage and capacity. Balancing is possible during all battery modes: charge, discharge, and rest. Highly efficient charge-transfer circuitry nearly eliminates energy loss while providing true real-time balance between cells, resulting in longer run-time and improved cycle life.
Temperature is sensed by up to 4 external sensors and one on-chip sensor. This permits accurate temperature monitoring of each cell individually. Firmware is then able to compensate for the temperature-induced effects on capacity, impedance, and OCV on a cell-by-cell basis, resulting in superior charge/ discharge and balancing control.
The bq78PL116 is completely user-configurable, with parametric tables in flash memory to suit a variety of cell chemistries, operating conditions, safety controls, and data reporting needs. It is easily configured using the supplied bqWizard graphical user interface (GUI). The device is fully programmed and requires no algorithm or firmware development.
The bq78PL116 pin functions of LED1/SEG1–LED5/SEG5, PSH/BP/TP, and FIELD support LED, LCD, and electronic paper displays (EPDs). The user can configure the bq78PL116 for the desired display type.
Key Applications: Portable Medical Instruments and Test Equipment, Mobility Devices (E-Bike), Uninterruptible Power Supplies and Hand-Held Tools. | |||||||||||
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Technical Documents
Learning Center
Design Elements
| Type | Description |
|---|---|
| Application Library | TI: Software Code for BQ78PL11X Application Programming Interface |
| Application Library | TI: Software Code for bqWizard Application |
Video
Kit Features
- One bq78PL116 and six bq76PL102 devices with associated support circuitry
- Support for 3-to-16 series connected cell packs
- Parallel cell count depends on battery current through sense resistor
- Solder bridges on printed-circuit board (PCB) for configuration of odd cell counts
- For a typical 3.6-V cell – supports 10.8-V to 57.6-V packs, 72 V maximum
- 11.2-A discharge and 10-A charge continuous current rating
- 0.010-Ω (equivalent) shunt resistor, 3 W, 10-mV/A signal to bq78PL116
- Supports up to four external (mounted on PCB) and one internal temperature sensor
- Header to optionally connect remote temperature sensors
- PowerPump
cell balancing circuitry for all cells. 4.7-μH inductor achieves 70-mA to 90-mA average balancing. - Pack Disconnect MOSFETs – Charge, Discharge, and Precharge
- Transient voltage protection of PACK± terminals
- Pluggable terminal block connections for cells
- SMBus connection compatible with USB-TO-GPIOUSB-TO-GPIO Adapter
- EFCI connection for remote disable of Charge and Discharge MOSFETs.
- Test points for monitoring of cell voltages and other important circuit nets
- High-current, stud-type connections for battery power and pack power
- SOC display using five green LEDs and pushbutton switch
- Red LED for fuse-blow output indication (SPROT)
- EVM Design Files in Mentor Graphics PADs 2009 format available on request
- Gerber files available on request
Kit Contents
The Texas Instruments BQ78PL116EVMBQ78PL116EVM Evaluation Module supplied with below contents:
- BQ78PL116EVMBQ78PL116EVM Evaluation board