LB1816 is a three-phase brushless motor driver IC with built-in speed control circuit, ideal for optical disc spindle motor (5.25 inches, 3.5 inches dual use).

Features
▪ Three-phase full-wave current linear drive.
▪ Output soft switching. Digital PLL speed control.
▪ Phase lock detection output.
▪ Built-in FG amplifier and integral amplifier.
▪ Reverse rotation torque brake (with power on reset function).
▪ Crystal oscillation circuit. • Clock division switching (internal clock 3 mode setting + external clock input).
▪ Current limiting circuit.
▪ Low voltage protection circuit (LVSD). Internal regulator output (6.3 V).
▪ Overheat protection circuit (TSD). Built-in spark killer diode.
▪ Hall amplifier section Built-in AGC circuit.