FCM8202 Ver la hoja de datos (PDF) - Fairchild Semiconductor
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FCM8202 Datasheet PDF : 13 Pages
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Pin Definitions
Pin #
1
Name
HOVP
Description
Motor Drive Over-Voltage Protection Output. Can be connected to an external power
transistor for discharging the Back-EMF.
2
HA
Hall A Sensor Input. Phase-U magnetic field detection.
3
HB
Hall B Sensor Input. Phase-V magnetic field detection.
4
HC
Hall C Sensor Input. Phase-W magnetic field detection.
5
CW/CCW Direction Control Input. This pin has a 200KΩ internal pull-up. HIGH: CW, LOW: CCW.
6
FREE/nST Free and Start Control Input. This pin has a 200KΩ internal pull-up. HIGH: Free, LOW: Start.
Angle Predict Range Selection Input. This pin has a 200KΩ internal pull-up. LOW: 0.8 ~
7
APRS 80Hz, HIGH: 3.2 ~ 320Hz Hall Frequency.
8
DTS
Dead-Time Selection Input. This pin has a 200KΩ internal pull-up. LOW: 3µs, HIGH: 4µs.
9
FO
Revolution Pulse Output. Pulses per revolution = motor poles ÷ 2 × 3.
10
DGND Digital Ground
Voltage Regulator Output. A 0.1µF (minimum) capacitor should be connected between this
11
VOUT pin and ground.
12
IP
Positive Input of Torque Error Amplifier
13
OPO Output of Torque Error Amplifier
14
IN
Negative Input of Torque Error Amplifier
15
I_FB Current Feedback Output
16
DUTY PWM Duty Control Input. Designed to directly control the PWM duty cycle.
17
R_CLK
External Resistor of Clock Generator. Designed for determining the frequency of internal
clock generator.
18
AGND Analog Ground
19
I_IN
Current Feedback Input
20
AS
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.
21
VSENSE
Motor Drive Voltage-Sensing Resistor. Designed for determining the voltage level of over-
voltage protections.
22
RT
Thermistor Voltage Input. Connect to a Negative Temperature Coefficient (NTC) thermistor
for the over-temperature protection.
23
OC_TMR
Overload Time-Out Programmable Input. Connect to a capacitor for determining the time
delay of overload protection.
24
nFAULT Fault Flag. Open-drain output, LOW: system failure.
25
VPP
Supply Voltage Input
26
Z
PWM Output of W-Phase, Low-Side
27
W
PWM Output of W-Phase, High-Side
28
Y
PWM Output of V-Phase, Low-Side
29
V
PWM Output of V-Phase, High-Side
30
X
PWM Output of U-Phase, Low-Side
31
U
PWM Output of U-Phase, High-Side
32
PGND High-Voltage Ground
© 2010 Fairchild Semiconductor Corporation
FCM8202 • Rev. 1.0.0
4
www.fairchildsemi.com
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