AM4967

ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER FOR MOTOR General Description Features Data Sheet AM4967 The AM4967 is a single-coil, single-phase motor pre- · Single-phase Full-wave Pre-drive driver designed by bipolar process. Its rotation speed · Rotation Speed Control via External PWM can be controlled through an external PWM. This IC · Maximum Operating Current Limit requires few external components and has the merit of high efficiency which make it suitable for use in great · Linear Start Function for Reducing Large Current Impulse at the Moment of Turn-on air volume, large current and high voltage applications. · Minimum Rotation Speed Setting The AM4967 is available in SSOP-16 package. · Lock Protection and Auto Start Function · Rotation Speed Indication · Over Temperature Protection Application · CPU and OA (Office Automation) Cooler Fan · Brushless DC Motor Oct. 2008 Rev. 1. 2 SSOP-16 Figure 1. Package Type of AM4967 BCD Semiconductor Manufacturing Limited 1 ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER FOR MOTOR Pin Configuration Data Sheet AM4967 GS Package (SSOP-16) OUT2 OUT2B VCC CS VMIN VPWM COSC FG/RD 1 2 3 4 5 6 7 8 16 OUT1 15 OUT1B 14 GND 13 VREF 12 LS 11 CT 10 HIN+ 9 HIN- Figure 2. Pin Configuration of AM4967 Oct. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited 2 ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER FOR MOTOR Pin Description Data Sheet AM4967 Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name...