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FD0255fR-G1 Schematic ( PDF Datasheet ) - Feeling Technology

Teilenummer FD0255fR-G1
Beschreibung Smart motor driver
Hersteller Feeling Technology
Logo Feeling Technology Logo 




Gesamt 12 Seiten
FD0255fR-G1 Datasheet, Funktion
FEELING
TECHNOLOGY
FD0251f
FD0255f
Smart motor driver with embedded Hall sensor
Features
Motor driver with integrated Hall sensor
High current driving capability
Halogen Free
Lock-shutdown protection & auto-restart function
Built-in FG(frequency generation) signal outputPrecise magnetic switching thresholds
“Soft-switch” phase-switching technique to reduce vibration and acoustic noise(patent pending)
Thermal shutdown protection
PWM speed control(only available for FD0255f)
Available in both TS825(FD0251f) and TS826(FD0255f) packages
General Description
FD0251f/FD0255f 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.
“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
Oscillator
Power On
Reset
Chopper amplifier
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.
Rev1.2 Nov. 06, 2008
P.1






FD0255fR-G1 Datasheet, Funktion
FEELING
TECHNOLOGY
Application Circuit Reference
FD0251f
VDD D1
Schottky
diode 0.2V
4.7 Ohm
(0603)
R1
MLCC (0603)
2.2uF/6.3V
C1
54
ZD1 bb
6.5V
g
123
L1
VDD D1
Schottky
diode 0.2V
4.7 Ohm
(0603)
R1
MLCC (0603)
2.2uF/6.3V
C1
FD0251f
FD0255f
FD0255f
R4
1K Ohm
(0603)
R3
654
ZD1 ba
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 FG output.
3. R3: PWM Pull-up resistor for Open Drain PWM source signal.
4. R4: de-coupling resistor for long-distance signal transmission .
Rev1.2 Nov. 06, 2008
P.6

6 Page









FD0255fR-G1 pdf, datenblatt
FEELING
TECHNOLOGY
IC Pin Connection
Marking Distinguish
FD0251f
FD0255f
Order Information
Part Number
FD0251fR-G1
FD0255fR-G1
Package
TS825
TS826
Tapping Reel Qty’s
10000EA / PER REEL
10000EA / PER REEL
Marking
bbXXXXg
baXXXXg
Rev1.2 Nov. 06, 2008
P.12

12 Page





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