Diodes AM4967 - Manual

ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER FOR MOTOR AM4967
Data Sheet
1
Oct. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
General Description
The AM4967 is a single-coil, single-phase motor pre-
driver designed by bipolar process. Its rotation speed
can be controlled through an external PWM. This IC
requires few external components and has the merit of
high efficiency which make it suitable for use in great
air volume, large current and high voltage applications.
The AM4967 is available in SSOP-16 package.
Features
· Single-phase Full-wave Pre-drive
· Rotation Speed Control via External PWM
· Maximum Operating Current Limit
· Linear Start Function for Reducing Large Current
Impulse at the Moment of Turn-on
· Minimum Rotation Speed Setting
· Lock Protection and Auto Start Function
· Rotation Speed Indication
· Over Temperature Protection
Application
· CPU and OA (Office Automation) Cooler Fan
· Brushless DC Motor
Figure 1. Package Type of AM4967
SSOP-16