Diodes AM4961 - Manual

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