FAN8423D3TF Fairchild Semiconductor, FAN8423D3TF Datasheet - Page 8
FAN8423D3TF
Manufacturer Part Number
FAN8423D3TF
Description
Motor / Motion / Ignition Controllers & Drivers BLDC Motor Driver 3Phase 5V Interface
Manufacturer
Fairchild Semiconductor
Type
3 Phase BLDC Motor Driverr
Datasheet
1.FAN8423D3TF.pdf
(18 pages)
Specifications of FAN8423D3TF
Operating Temperature Classification
Commercial
Package Type
SSOP
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage
5 V
Mounting Style
SMD/SMT
Package / Case
SSOP-28
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FAN8423D3TF
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
FAN8423D3
Application Information
1. Torque Control & Output Current Control
1) By amplifying the voltage difference between Ec and Ecr from Servo IC, the Torque Sense AMP produces the input
2) The output current (I
3) As a result, the signals, E
4) The range of the torque voltage is as shown below.
8
Current
[mA]
700
500
(V
By the negative feedback loop, the sensed output voltage, VCS is equal to the input V
(I
Driver.
O
AMP
6
) is linearly controlled by the input V
The input range of E
) for the Current Sense AMP.
Reverse
Ecr
-50mV
Torque AMP
+
Ec
-
O
Ecoff-
) is converted into the voltage (V
C
CR
and E
0
and E
Ecoff+
CR
C
can control the velocity of the Motor by controlling the output current (I
50mV
ECR-EC
AMP
is 1.0 V ~ 4 V ( R
Forward
.
0.51[A/V]
V
M
+
Oct. 2000.
Rev. 1.0.1
CS
-
) through the sense resistor (R
Current Sense AMP
NF
= 0.5[ ] )
TSD
E
E
CR
CR
Controller
Gain
> Ec
< Ec
AMP
CS
Vcs
) and compared with the V
. Therefore, the output current
Driver
Forward rotation
Stop after detecting re-
verse rotation
+
V
-
M
Io
Rcs
Rotation
M
O
) of the
AMP
.