TIDT270 April 2022
This battery charger reference design is designed for a 5- to 24-VIN, 240-W power tool, featuring the BQ25731—1-5 cell NVDC buck-boost battery charge controller. This controller enables a high-power, high-efficiency, and high-density design. PMP22805 delivers 240 W, with 98% efficiency, and fits in a compact 1.08 in × 1.68 in (27.4 mm × 42.7 mm) form factor. The USB On-The-Go (OTG) capability makes it a power bank. This design is ideal for power tools where high-power, high-efficiency, and high-density are top priorities. The design also supports 1-5S battery and accepts a wide input range such as USB-Type C® power delivery (PD) interface.