Diodes AM4961 User Manual
Diodes Hardware
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SINGLE PHASE FULL WAVE DIRECT
PWM MOTOR DRIVER AM4961
Data Sheet
1
May. 2011 Rev. 2. 4
BCD Semiconductor Manufacturing Limited
General Description
The AM4961 is a full wave driver IC with PWM con-
trol function. It is used for single phase motor and is
capable of speed control by changing output duty
cycle.
The AM4961 is available in SSOP-16 and HTSSOP-
14 packages.
Features
·
Built-in Hall Bias Circuit
·
Built-in PWM Speed Control Circuit
·
Built-in Minimal Speed Setup Circuit
·
Rotation Speed Indication (FG)
·
Rotation or Lock State Indication (RD)
·
Built-in Thermal Shutdown Circuit
·
Lock Protection
·
Output Current Limit
Application
·
CPU Cooler Fan in PC
·
Brushless DC Motor Driver
Figure 1. Package Types of AM4961
SSOP-16
HTSSOP-14
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