The first 20 unit intelligent battery management single chip solution from Qorvo

     Qorvo has announced the introduction of its growing line of Power Application Controllers (PACs), the PAC22140 and PAC25140, the industry's first single-chip solution to support battery packs consisting of up to 20 batteries in series (20s). Using PAC's intelligent motor control technology, these products can be extended to the rapidly growing market for intelligent battery management solutions (BMS), suitable for multi-cell applications such as garden tools, electric bicycles, carts, generators, energy storage systems, and other industrial products.

     PAC22140 is packaged with 9x9 mm 60-pin QFN and PAC25140 is packaged with 10x10 mm 68-pin QFN. The PAC22140 and PAC25140 have access to many of the analog and digital peripherals needed to manage today's multi-cell battery packs, including programmable gain differential amplifiers, multiple 16-bit delta-Sigma AdCs for current and voltage sensing, and 10-bit SAR ADCs. The single-power 145V DC/DC step-down controller generates a 5V system feed rail that powers the device, while the integrated charge pump charges and discharges the FET driver.

     With Qorvo's complete hardware and firmware ecosystem, Qorvo PAC22140 and PAC25140 are highly integrated, saving designers more than 50% PCB space, reducing total BOM costs by 30%, and shortening product time to market. These devices integrate all of the necessary analog and power management peripherals with 32-bit Arm® Cortex® M0 or M4F microcontrollers, and feature cell balancing, monitoring and protection for the 10s-20s battery pack.

     The PAC22140 and PAC25140 offer low-power sleep modes (below 3µA) while enabling longer storage times with push-button wake up, timer or charger detection functions. The integrated high voltage step-down converter powers the system through a 5V regulated power supply with a maximum current of 225mA, reducing heat dissipation problems. The integrated 3.3V LDO provides up to 90mA current for running other peripherals. The mock MUX is connected to the SAR ADC for security checks on the internal nodes.

     "As consumers look to extend battery life, reduce charging times and reduce the overall weight of battery-powered devices, their demand for higher unit count solutions is bound to increase," said Brian McCarthy, senior manager of the PAC product line at Qorvo. Overall, all the integrated peripherals and power management features of the PAC22140 and PAC25140 make them the most integrated solution for 20s battery management applications."