AM4406MTR-G1 Diodes Incorporated

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