Preliminary Datasheet
ADJUSTABLE-SPEED SINGLE-PHASE FULL-WAVE PRE-DRIVER FOR MOTOR
AM4967
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
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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
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CPU and OA (Office Automation) Cooler Fan
Brushless DC Motor
SSOP-16
Figure 1. Package Type of AM4967
Jun. 2008 Rev. 1. 1
1
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
