AM4963 Datasheet, PDF (1/2 Pages) BCD Semiconductor Manufacturing Limited – Single Phase Full Wave Direct PWM Motor Driver

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.
.
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
Parametric Table
V_CC=12V
Supply Voltage (V)
3.5 to 18
Supply Current (mA) V_CT=L
15
Output Saturation (V)
1.2
Output Current (Max) (A)
1.0
CT Charge Current (μA)
2.3
CT Discharge Current (μA)
0.23
CT Charge and Discharge Ratio
10
FG Output Low Level Voltage (V) 0.2
RD Output Low Level Voltage (V) 0.2
Benefits
• Speed Control by Both Thermistor and
Direct PWM
• Minimum External Components
• Temperature High/Low Adjustable
• Low Startup Voltage: 3.5V
• Cost-effect Solution
Applications
• CPU Cooler Fan in PC
• Brushless DC Motor Driver
Additional Available Materials
• Samples
• Data Sheet
• Reliability Report
• ESD Report
Oct. 2011
BCD Semiconductor Manufacturing Limited
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