LB1975 Datasheet (Sanyo) - DC Fan Motor Driver

LB1975, DC Fan Motor Driver

Direct PWM Drive This IC (LB1975) 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

LB1975 Features

* Withstand voltage 45 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