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Home › Manufacturer › Renesas introduces 48V mobility winning combination solution featuring new 16-cell BFE and 32-bit MCU with built-in FPU for complex inverter control algorithms
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Renesas introduces 48V mobility winning combination solution featuring new 16-cell BFE and 32-bit MCU with built-in FPU for complex inverter control algorithms

SemiMediaEdit
August 26, 2020

Renesas Electronics today introduced a 48V Mobility Winning Combination Solution that helps customers accelerate the development of e-scooters, e-bikes, UPS and energy storage systems. This reference design uses a modular approach in both hardware and software to showcase core and optional functional blocks that can be adopted for many 24V-48V applications such as lawn mowers, electric carts, robot cleaners, power tools, power banks, and more. It also uses 15 Renesas ICs, including three key devices: the ISL94216 16-cell battery front end (BFE), robust HIP2211 100V MOSFET drivers, and RX23T 32-bit microcontroller (MCU) for motor control. The 48V mobility winning combination solution is powered from a 25 AHr Li-ion battery that drives a 1600W inverter to attain speeds up to 5000 rpm.

“Micromobility options like e-scooters and e-bikes offer an attractive, low-carbon footprint vehicle for first-mile and last-mile travel. Rising demand for these applications is driving new battery management capabilities as cell balancing plays an increasingly critical role in recharging,” said DK Singh, Director, Systems and Solutions Team at Renesas. “Our new 48V mobility winning combination solution combines Renesas’ advanced BFE, industry-leading MCUs, along with analog and power devices, and innovative motor control technology to help customers speed up the development of their high power and torque e-scooters and e-bikes.”

The 48V mobility winning combination solution includes two boards that address the higher battery cell count and power levels mobility applications require. The BFE and charger board focuses on larger, higher voltage battery packs. The motor control and inverter board features synchronized current/voltage measurements and drivers that are pulse width modulated (PWM) to actuate the motor, and monitor motor status. The algorithm with the hardware is ideal for driving brushless DC (BLDC) motors. Also, two optional boards are available: the wireless charging receiver board, and the Bluetooth® Low Energy (BLE 5.0) control board.

For system control, the winning combination solution uses a cost optimized, energy-efficient RX23T MCU with built-in floating point unit (FPU) and six high-performance timers specifically tooled for complex inverter control algorithms. These specific features and modular design helps engineers greatly reduce the man-hours in software/hardware development and debug. In addition, unlike other large cell count single-chip battery managers, the highly integrated ISL94216 offers several features that balance and monitor system conditions to improve battery life and safety, independent of the MCU. The winning combination solution also uses the ISL81601 60V bidirectional 4-switch synchronous buck-boost controller for ultra-fast charging. The controller’s CC/CV charger profile is implemented through the system MCU.

For more information on the Renesas 48V mobility winning combination solution, including system block diagram, bill of materials (BOM), and data sheets, please visit: www.renesas.com/solutions/industrial-automation/motion-and-drives/48v-mobility-solution.

The new ISL94216 16-cell BFE is available now in a 64-lead QFN package from Renesas’ worldwide distributors, and is priced at $2.99 USD in 1,000-unit quantities. For more information and evaluation board, please visit: www.renesas.com/products/ISL94216.

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