2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER
2-PHASE HALF-WAVE HIGH VOLTAGE MOTOR PRE-DRIVER
General Description
Features
Data Sheet AM4406/4406F
The AM4406/4406...
Description
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 (+...
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