Suited for driving three-phase brush and brushless dc motors, the SA303-IHZ and SA53-IHZ current-pulse PWM ICs operate on supplies up to 60 V and offer a continuous output current of 3 A (10 A peak). To improve power dissipation the parts are mounted upside down through a cutout in the PCB.
Housed in a 64-pin power quad package, the parts use smaller filter components because they can switch at frequencies of up to 100 kHz. Additional features include cycle-by-cycle current-limit, undervoltage, and overtemperature protection. (Ea/10,000: SA303-1HZ, $5.86; SA53-1HZ, $4.70 available now.)
Cirrus Logic , Austin , TX
Marie Rivera 520-690-6932
Advertisement
Learn more about Cirrus Logic
