DSCs bring digital power to mainstream apps

The dsPIC33FJ06GSxxx are next-generation 16-bit digital signal controllers (DSCs) for common multiloop switch-mode power supplies (SMPSs) and other power-conversion applications. These devices are offered in the industry’s smallest DSC packages for digital power conversion in a footprint as small as 6 x 6 mm, and provide up to twice the performance at a lower price than the company’s first SMPS family. The in-circuit programming capabilities of the DSCs also allow common SMPS platforms to be differentiated late in the production process.

The seven new dsPIC33F GS series digital-power DSCs enable digital control loops with four to eight 1-ns-resolution PWMs and one or two 10-bit on-chip ADCs, providing 2 to 4 Msamples/s. The devices range from 18 to 44 pins and 6 to 16 Kbytes of flash memory. They feature interactive peripherals that both minimize the intervention of the processor and can handle the real-time needs of high-speed current-mode control.

The DSCs are suited for ac/dc converters, dc/dc power-converters, and other power-conversion applications, such as embedded power-supply controllers, power inverters, UPSs, and digital lighting. Additionally, the 1-ns duty-cycle-resolution PWMs can handle the timing requirements of all switching power-supply topologies. (From $1.96 ea/5,000 — available now.)

Microchip Technology , Chandler , AZ
Sales 480-792-7200
http://www.microchip.com