DESCRIPTION
The ZXBM2004 is a 2-phase, DC brushless motor pre-driver with PWM variable speed control suitable for fan and blower motors. The controller is intended for applications where the fan or blower speed is controlled by an external PWM signal, thermistor or DC voltage.

FEATURES
• Compliant with external PWM speed control
• Compliant with thermistor control
• Minimum speed setting
• Low noise
• Auto restart
• Built in hall amplifier
• Speed pulse (FG) and lock rotor (RD) outputs
• Up to 18V input voltage (60V with external regulator)
• QSOP16 package
• Lead free product

APPLICATIONS
• Mainframe and personal computer fans and blowers
• Instrumentation fans
• Central heating blowers
• Automotive climate control