Data Sheet
Single Phase Full Wave Direct PWM Motor Driver AM4963/AM4963R
General Description
The AM4963/AM4963R is a full wave driver IC with
direct PWM control function and thermal resistor
control function. It is used for single phase motor and
is capable of speed control by PWM pulse and
thermal resistor at the same time.
The AM4963/AM4963R is available in HTSSOP-14
and SSOP-16 packages.
Features
•
•
•
•
•
•
•
•
•
•
•
•
The Motor Speed is Controlled by PWM Pulse
Directly and Thermal Resistor at the Same Time
Low Corner Temperature (30°C) Adjustable
High Corner Temperature (38°C) Adjustable
Full Speed when Thermal Resistor Shorten
Built-in Triangle Wave Circuit without Extra
Oscillation Capacitor
Built-in Minimal Speed Setup Circuit
Alpha Slope Adjustable
Rotation Speed Indicator (FG)
Rotation/lock State Indicator (RD)
Built-in Temperature Control Circuit
Built-in Thermal Shutdown Circuit
Lock Protection and Auto-restart
Applications
•
•
CPU Cooler Fan in PC
Brushless DC Motor Driver
HTSSOP-14
SSOP-16
Figure 1. Package Types of AM4963/AM4963R
Sep. 2011
Rev. 1. 0
1
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
