Diodes AM4962 - Manual

Data Sheet
SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962
Apr. 2011 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
1
General Description
The AM4962 is a full wave driver IC with direct
PWM control function. It is used for single phase
motor and is capable of speed control by PWM pulse.
The AM4962 is available in HTSSOP-14 and
SSOP-16 packages.
Features
•
The Motor Speed is Controlled by PWM Pulse
Directly
• Built-in Triangle Wave Circuit Without Extra
Oscillation Capacitor
• Built-in Hall Bias Circuit
• Built-in Minimal Speed Setup Circuit
• Slope K* Adjustable
• Rotation Speed Indication (FG)
• Rotation or Lock State Indication (RD)
• Built-in Thermal Shutdown Circuit
• Lock Protection and Auto-restart
• Output Current Limit
* Slope K is the slope of output PWM duty vs. input
PWM duty
Applications
• CPU Cooler Fan in PC
• Brushless DC Motor Driver
Figure 1. Package Types of AM4962
HTSSOP-14 SSOP-16