ISL94216 Multi-Cell Battery Front End

Product Highlights > ISL94216 Multi-Cell Battery Front End

            ISL94216 Multi-Cell Battery Front End
                    Renesas’ wholly integrated 16-cell battery front end is ideal for challenging industrial environments
    

Image of Renesas' ISL94216 Multi-Cell Battery Front End Renesas’ ISL94216 is a 16-cell battery front end (BFE) IC, an essential component of any battery management system (BMS), which periodically scans battery status and the operating environment to optimize battery life and prevent catastrophic failures. A differential multiplexer and 16-bit ADC allows for accurate monitoring of cell voltage, temperature, and load current for management of the overall state of the battery pack.

The ISL94216 supports I²C, SPI, and single wire protocols allowing customers to connect a microcontroller (MCU) in a proprietary battery management solution. Low current consumption with an average IDLE mode current of 200 µA and a SHIP mode current of less than 18 µA maximizes the storage and discharge life of a battery pack.

The ISL94216 features internal cell balancing circuitry that provides 8 mA of balance current per cell. External cell balancing for higher currents is also supported. This 16-cell high voltage BFE IC is offered in an efficient 64-lead QFN package with a thermal pad.

Features

Wholly integrated 16S front end for sophisticated high voltage batteries
Rugged monolithic device tested to withstand hot plug events and with higher ESD ratings
Both internal and external cell balancing supported via internal FETs and dedicated FET driver pins
EVK and GUI for easy out of the box evaluation and development
Total BOM cost and component count reduced >$1 savings and >20% board space
High accuracy ADC for V_CELL and I_PACK

Supports I²C, SPI, and single wire communications
Integration shortens development time by elimination of component selection, integration, and testing
Charging time reduced and uptime maximized by seamless control of external cell balancing FETs
High hot plug rating: 62 V
Charge/load wakeup detection circuitry
4-pin GPIO port
Integrated 3.3 V regulator
16-bit V_CELL and I_PACK measurements

Applications

Light electric vehicles such as e-bikes, e-motorcycles, wheelchairs, and mobility scooters
Home appliances
24 V, 36 V, 42 V, and 48 V portable battery packs
Energy storage and 48 V UPS systems

Telecom and server farms
Solar farms
High-voltage industrial power tools
Cordless power tools
Farm and gardening tools