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FD0256f Schematic ( PDF Datasheet ) - Feeling Technology

Teilenummer FD0256f
Beschreibung Smart motor driver
Hersteller Feeling Technology
Logo Feeling Technology Logo 




Gesamt 15 Seiten
FD0256f Datasheet, Funktion
FEELING
TECHNOLOGY
FD0252f
FD0256f
Smart motor driver with embedded Hall sensor
Features
Motor driver with integrated Hall sensor
High current driving capability
Lock-shutdown protection & auto-restart function
Built-in RD(rotation detection) signal output
“Soft-switch” phase-switching technique to reduce vibration and acoustic noise
Thermal shutdown protection
PWM speed control(only available for FD0256f)
Available in both TS825(FD0252f) and TS826(FD0256f) packages
Halogen
Free
General Description
FD0252f/FD0256f is a single coil motor driver with embedded Hall sensor. It integrates the motor driver with the Hall
sensor, 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 being
locked.
FD0252f/FD0256f is built-in the signal output of rotation detection function, the system could detect the rotation
status from this signal of motor when using FD0252f/FD0256f.
“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 PWM control
Oscillator
Power-On
Reset
Digital control logics
Figure.1
Coil Driver
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.
Rev1.3 Dec. 18, 2008
P.1






FD0256f Datasheet, Funktion
FEELING
TECHNOLOGY
Application Circuit Reference
FD0252f
VDD D1
Schottky
diode 0.2V
VDD D1
Schottky
diode 0.2V
4.7 Ohm
(0603)
R1
MLCC (0603)
2.2uF/6.3V
C1
54
ZD1 ce
6.5V
g
123
L1
4.7 Ohm
(0603)
R1
MLCC (0603)
2.2uF/6.3V
C1
FD0252f
FD0256f
FD0256f
R4
1K Ohm
(0603)
R3
654
ZD1 cd
6.5V
g
123
L1
R2
100 Ohm
(0603)
R2
100 Ohm
(0603)
Figure.8
Note:
Must use C1 capacitor for the decoupling between VDD and VSS and place the capacitor as close to the IC as
possible.
Option component
1. ZD1: VDD over-voltage stress protection diode.
2. R2: current limit resistor for Open Drain RD output.
3. R3: PWM Pull-up resistor for Open Drain PWM source signal.
4. R4: de-coupling resistor for long-distance signal transmission.
Rev1.3 Dec. 18, 2008
P.6

6 Page









FD0256f pdf, datenblatt
FEELING
TECHNOLOGY
Package Dimension (Unit: mm)
TS826 (Halogen Free)
D
b
65
4
Top view: marking side
Sensor location
E E1
1.02mm
0.86mm
12 3
e
e1
C
FD0252f
FD0256f
D
Θ1
Θ1
Symbols
Dimension In Millimeters
Min Nom Max
A2
0.700
0.750
0.775
b 0.350 - 0.500
c 0.100 - 0.200
D
2.800
2.900
3.100
A2
E
3.700
3.800
3.900
E1
1.500
1.600
1.700
e 0.950 BSC
e1 1.900 BSC
Θ1 4˚ 10˚ 12˚
Rev1.3 Dec. 18, 2008
P.12

12 Page





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