FAN8727 Fairchild Semiconductor, FAN8727 Datasheet - Page 14

• Manufacturer Part Number: FAN8727
• Description: Motor / Motion / Ignition Controllers & Drivers BTL Motor Drive IC 3Phase BLDCM+4CH
• Manufacturer: Fairchild Semiconductor
• Type: 4 Channel Motor Driverr

Specifications of FAN8727

• Operating Supply Voltage: 15 V
• Supply Current: 1.3 A
• Mounting Style: SMD/SMT
• Package / Case: QFPH-48
• Operating Temperature: - 35 C to + 85 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

FAN8727
3. Torque & Output Current Control
Torque Control & Output Current Control
The input range (E
14
3 mV
- When the input signal Vin, through the pin (pin 22, 23, 24 and 25) is above the Vbias, then the motor (actuator) is in
- If you want to change the gain, then modify the external resistor's value (Rextern)
- By amplifying the voltage difference between E
- The current sense AMP produces the input for the Gain controller to allow the output current (I
- In the end, the signals of the Servo IC control the velocity of the motor by controlling the output current (I
- When the junction temperature rises up to about 175 C, then the output drive circuit will be shut down.
- The range of the torque control input voltage is as shown below.
V
RNF
[V]
reverse direction.
(V
controlled by the input voltage (V
converted into V
driver.
AMP
E
C
) for the current sense AMP.
Reverse
+
E
C
CR
) of the Torque Sense AMP is 0.5V ~ 3.3V
RNF
.
Ecoff
Torque sense amp
0
Ecoff+
AMP
V
), where the output current (I
AMP
Forward
+
C
and E
CR
E
from the Servo IC, the torque sense AMP produces the input
CR
Current sense amp
-E
C
[V]
O
) is detected by the sense resistor (R
TSD
Ec < E
Ec > E
CR
CR
V
+
Controller
M
Gain
Forward rotation
Stop after detecting
reverse rotation
Rotation
O
Driver
) of the driver to be
V
M
R
V
I
NF
RNF
O
NF
O
M
) and is
) of the