LB8503V Datasheet - ON Semiconductor

LB8503V DC Fan Motor Speed Control IC

One-shot multivibrator pulse width setting. Connect a resistor between this pin and VREG, and a capacitor between this pin and ground. Soft start time setting. Connect a capacitor between this pin and VREG. 6V regulator output. Connect a capacitor between this pin and ground for stabilization. Power.

LB8503V Features

* the added functions listed below. The LB8503V supports both single-phase and three-phase applications. Added Functions

* Supports origin shifting in the speed control function

* Adds a dedicated pin for setting the soft start time This allows a longer start time to be set without red

LB8503V-ONSemiconductor.pdf