FEELING
TECHNOLOGY
Features
Motor driver with integrated Hall sensor
Lock-shutdown protection & auto-restart function
Precise magnetic switching thresholds
“Soft-switch” phase-switching technique to reduce vibration and acoustic noise
Tachometer Output (FD115Cf) / Alarm Output (FD115Mf)
Thermal shutdown protection
Available in TS825 package
For 12V systems
FD115Cf
FD115Mf
Smart motor driver with embedded Hall sensor
Halogen
Free
General Description
FD115Cf/FD115Mf is a two coil motor driver with embedded Hall sensor. It integrates the motor driver with the Hall
sensor and rotation signal output, which simplifies the PCB(printed circuit board) design and make the fabrication of
small-size motors possible.
Lock-shutdown and auto-restart function keeps the motor from being over-heated and restarts the motor after rotor
is released for lock.
FD115Cf and FD115Mf are built-in the signal output of rotation speed and rotation detection function, the system
could detect the rotation speed and rotation status of motor when using FD115Cf and FD115Mf.
“Soft-switch” phase-switching technique is used to reduce the vibration and acoustic noise.
Thermal-shutdown protection ensures the motor driver to operate under specified temperature ranges.
All the protection mechanisms mentioned above combine to provide a complete protecting scenario for the motor
system, keep the motor system from possible damages and guarantee correct operations.
Block Diagram
Bias Generator
Hall Plate
Chopper amplifier
Oscillator
Coil Driver
Digital control logics
Power On
Reset
Figure.1
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Rev1.0 Mar. 3, 2010
P.1
FEELING
TECHNOLOGY
Pin Connection
VDD
VDD
SO
SO
FD115Cf
FD115Mf
5
4
5
4
be
1
2
3
VSS
NO
FG
g
ca
1
2
3
VSS
NO
RD
g
FD115Cf
FD115Mf
Figure.2
Figure.3
Pin Descriptions
Name
VDD
VSS
NO
SO
FG
RD
I/O
P
G
O
O
O
O
FD115Cf
5
2
3
4
1
-
FD115Mf
5
2
3
4
-
1
Description
Positive Power Supply
Ground
Driver Output
Driver Output
Tachometer Output
Alarm Output
Legend: I=input, O=output, I/O=input/output, P=power supply, G=ground
Functional Descriptions
Refer to the block diagram (Figure.1), FD115Cf/FD115Mf is composed of the following building blocks:
Bias generator
The bias generator provides precise, temperature- and process-insensitive bias references for the analog circuit
blocks. These references guarantee proper operation of the IC under all conditions specified in this specification.
Oscillator
The built-in oscillator provides the clock signal for the digital control logics
Power-on Reset
Used to detect the power-up ramp and reset the digital circuits to achieve correct operation as soon as the power is
ready.
Chopper Amplifier
To achieve a higher magnetic sensitivity the chopper amplifier structure is adopted in this design. Use of this
structure dynamically removes both the offset and flicker noise at the same time.
Digital control logics
Hall sensor part – generates controlling signals for the Hall sensor.
Coil driver part – generates controlling signals for the Coil driver.
Tachometer (FG) or alarm (RD) signal output.
Rev1.0 Mar. 3, 2010
P.2
FEELING
TECHNOLOGY
Absolute Maximum Ratings
Parameter
Operating Temperature
Storage Temperature
Output clamp Voltage
DC Supply Voltage
Supply Current
FG RD Off Voltage
FG RD Sink Current
Continuous Current
Hold Current
Peak Current
Junction temperature
Power Dissipation
Thermal Resistance
Thermal Resistance
Magnetic Flux Density
IR-Reflow Lead Temperature
Symbol
T
OP
T
ST
V
C
V
DD
I
DD
V
FG RD
I
SINK(FG RD)
I
O(CONT.)
I
O(HOLD)
I
O(PEAK)
T
J
P
D
θ
JC
θ
JA
(2)
FD115Cf
FD115Mf
Values
typ.
-
-
-
-
-
-
-
-
-
-
-
-
0.08
0.29
-
-
Unit
℃
℃
V
V
mA
V
mA
mA
mA
mA
℃
mW
℃/mW
℃/mW
Gauss
℃
Conditions
-
-
-
-
-
-
-
-
-
<100µs
-
TS825
TS825
TS825
-
10sec
min.
-20
-40
25
-
-
-
-
-
-
-
-
-
-
-
-
-
max.
85
150
27
18
(1)
6
18
25
400
700
800
180
500
-
-
Unlimited
260
B
T
P
Note 1:
V
BEMF
must be lower than the output clamp voltage (Vc)
Note2:
device mounted with copper area of approximately 30mm 1oz, no air flow. (room temperature: 25
℃)
2,
P d (m W )
500
345
260
172
86
0
T S 8 2 5 P o w e r D issip a tio n C u rve
85
o
C
0
25
50
75
100
125
A m b ie n t T e m p. ( C )
o
150
180
255 ± 5
o
C
10 ± 1 sec
ROOM TEMP
150 ± 10
o
C
90 ± 30 sec
2~5
o
C /sec
2~5
o
C /sec
SECOND
IR-ReFlow Soldering Condition
Rev1.0 Mar. 3, 2010
P.3
FEELING
TECHNOLOGY
Recommended Operating Conditions
Parameter
Supply Voltage
Operating Temperature Range
Symbol
V
DD
T
OP
Conditions
-
-
min.
3.0
-20
Values
typ.
-
-
max.
16
(1)
FD115Cf
FD115Mf
Unit
℃
V
85
Note 1:
V
BEMF
must be lower than the output clamp voltage (Vc)if V
DD
is 16V..
Electrical Characteristics V
DD
=12.0V, T
A
=25℃
(unless otherwise specified)
℃
Parameter
Average Supply Current(no load)
FG, RD Saturation Voltage
FG, RD Leakage Current
On resistance (NO, SO pin)
Thermal Shutdown Threshold
Locked Rotor Period
Locked Rotor Period
Symbol
I
DD
V
FG
, V
RD
I
LEAKAGE
R
DS(ON)
T
SHUT
T
ON
T
OFF
Conditions
-
I
SINK
= 5mA
V
FG RD
= 5.0V
V
DD
=5V, T
A
=25
o
C, Iout=300mA
min.
-
-
-
-
150
-
-
Values
typ.
2.5
-
-
1
-
0.4
2.8
Max.
-
0.4
1
-
-
-
-
Unit
mA
V
µA
℃
s
s
-
-
-
Magnetic Characteristics
Parameter
Operate Points
Release Points
Hysteresis
Symbol
B
OP
B
RP
B
HYST
Conditions
-
-
-
min.
5
-50
10
Values
typ.
20
-20
40
max.
50
-5
55
Unit
G
G
G
Driver output vs. Magnetic Pole
Parameter
North pole
South pole
Test Conditions
B < Brp
B > Bop
NO
High
Low
SO
Low
High
Note:
The magnetic pole is applied facing the branded side of the package
Hysteresis Characteristics
V
V
B
Brp
Bop
Brp
Bop
B
NO
SO
Note:
The North pole (B > Bop) is applied facing the branded side of the package.
Rev1.0 Mar. 3, 2010
P.4
FEELING
TECHNOLOGY
Performance Graphs
FD115Cf
FD115Mf
Figure.4
Figure.5
Figure.6
Figure.7
Figure.8
Figure.9
Rev1.0 Mar. 3, 2010
P.5
嵌入式系统
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