AM4406

2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER General Description Features Data Sheet AM4406/4406F The AM4406/4406F are 2-phase, half-wave motor predrivers fabricated for fan motors. These ICs are equipped with lock shutdown and automatic restart functions. The lock shutdown function turns off the output current when the motor is under lock condition. And when the motor is unlocked, the ICs will automatically restart and allow DC fan to run. In addition, the AM4406 and AM4406F have RD and FG functions respectively. The RD function is to detect the motor status and FG function enables frequency generation. The AM4406/4406F are available in SOIC-8 package. · Hall Inputs with a Hysteresis · Lock Shutdown and Automatic Restart · Rotation Detection (RD) Output · Frequency Generation (FG) Output · Supply Voltage: 4 to 28V · Output Current: 70mA Max. · Operating Temperature: -40 to 95oC Applications · High Voltage, High Current Brushless DC Fan · Power Supply and Switchboards · Communications Facilities · Industrial Equipment SOIC-8 Figure 1. Package Type of AM4406/4406F Nov. 2009 Rev. 1. 5 BCD Semiconductor Manufacturing Limited 1 2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER Pin Configuration Data Sheet AM4406/4406F M Package (SOIC-8) VCC 1 HS (+) 2 RD/FG 3 HS (-) 4 8 OUT1 7 OUT2 6 CT 5 GND Figure 2. Pin Configuration of AM4406/4406F (Top View) Pin Description Pin Number 1 2 3 4 5 6 7 8 Pin Name Function AM4406 AM4406F VCC VCC Power supply HS (+) HS (+...