Product Brief
Single Phase Full Wave Direct PWM Motor Driver AM4963/AM4963R
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 SSOP-16
and HTSSOP-14 packages.
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Parametric Table
V
CC
=12V
Supply Voltage (V)
Supply Current (mA) V
CT
=L
Output Saturation (V)
Output Current (Max) (A)
CT Charge Current (μA)
CT Discharge Current (μA)
3.5 to 18
15
1.2
1.0
2.3
0.23
10
0.2
0.2
Features
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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
CT Charge and Discharge Ratio
FG Output Low Level Voltage (V)
RD Output Low Level Voltage (V)
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Benefits
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Speed Control by Both Thermistor and
Direct PWM
Minimum External Components
Temperature High/Low Adjustable
Low Startup Voltage: 3.5V
Cost-effect Solution
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Applications
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CPU Cooler Fan in PC
Brushless DC Motor Driver
Additional Available Materials
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Samples
Data Sheet
Reliability Report
ESD Report
Oct. 2011
1
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
