LB1976 Datasheet - Sanyo

LB1976 DC Fan Motor Driver

Direct PWM Drive This IC (LB1976) employs the direct PWM drive principle. Motor rotation speed is controlled by varying the output duty cycle according to an analog voltage input (VCTL). This eliminates the need to alter the motor power supply voltage. Compared to previous ICs using the PAM principl.

LB1976 Features

* Withstand voltage 60 V, output current 2.5 A Direct PWM drive output 3 built-in output top-side diodes Built-in current limiter Built-in FG output circuit R1.7 12.7 11.2 8.4 1 20.0 26.75 14 (1.81) 1.78 0.6 1.0 4.0 4.0 SANYO: DIP28H Any

LB1976_SanyoSemiconDevice.pdf