FCM8201 Fairchild Semiconductor, FCM8201 Datasheet - Page 6

• Manufacturer Part Number: FCM8201
• Description: FCM8201 is a three-phase sinusoidal brushless DC (BLDC) motor controller
• Manufacturer: Fairchild Semiconductor

© 2011 Fairchild Semiconductor Corporation
FCM8201 • Rev. 1.0.2
Pin Definitions
Pin #
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
9
OC_TMR
VSENSE
nFAULT
R_CLK
Name
DGND
AGND
PGND
VOUT
DUTY
OPO
I_FB
VPP
I_IN
FO
AS
RT
IN
IP
W
U
Z
Y
V
X
(Continued)
Description
Revolution Pulse Output. Pulses per revolution=motor poles ÷ 2 × 3.
Digital Ground
Voltage Regulator Output. A 0.1µF (minimum) capacitor should be connected between this
pin and ground.
Positive Input of Torque Error Amplifier
Output of Torque Error Amplifier
Negative Input of Torque Error Amplifier
Current Feedback Output
PWM Duty Control Input. Designed to directly control the PWM duty cycle in stand-alone
operation.
External Resistor of Clock Generator. Designed for determining the frequency of the
internal clock generator.
Analog Ground
Current Feedback Input
Angle Shift Input. Designed for correcting the lead angle of PWM output signals. The range
is from 0° to 60° related to the induced magnetic voltage.
Motor Drive Voltage-Sensing Resistor. Designed for determining the voltage level of over-
voltage protections.
Thermistor Voltage Input. Connect to a NTC (Negative Temperature Coefficient) thermistor
for the over-temperature protection.
Overload Time-Out Programmable Input. Connect to a capacitor for determining the time
delay of overload protection.
Fault Flag. Open-drain output, LOW: system failure.
Supply Voltage Input
PWM Output of W-Phase Low Side
PWM Output of W-Phase High Side
PWM Output of V-Phase Low Side
PWM Output of V-Phase High Side
PWM Output of U-Phase Low Side
PWM Output of U-Phase High Side
High-Voltage Ground
6
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