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Teilenummer | FD0251bVR-G1 |
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Beschreibung | Smart motor driver | |
Hersteller | Feeling Technology | |
Logo | ||
Gesamt 13 Seiten FEELING
TECHNOLOGY
FD0251b
FD0255b
Smart motor driver with embedded Hall sensor
FEATURES
Motor driver with integrated Hall sensor
High current driving capability
Lock-shutdown protection & auto-restart function
Halogen
Free
Built-in FG(frequency generation) signal output “Soft-switch” phase-switching technique to reduce vibration
and acoustic noise
Thermal shutdown protection
PWM speed control(only available for FD0255b)
Available in both T825(FD0251b) and T826(FD0255b) packages
GENERAL DESCRIPTION
FD0251b/FD0255b 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.
FD0251b and FD0255b are built-in the signal output of rotation speed function, the system could detect the rotation
speed of motor when using FD0251b and FD0255b.
“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.
Rev1.9 Dec. 18, 2008
P.1
FEELING
TECHNOLOGY
Application Circuit Reference
FD0251b
FD0255b
FD0251b
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
R2
100 Ohm
(0603)
L1
VDD D1
Schottky
diode 0.2V
4.7 Ohm
(0603)
R1
MLCC (0603)
2.2uF/6.3V
C1
FD0255b
R4
1K Ohm
(0603)
R3
654
ZD1 ba
6.5V
g
123
R2
100 Ohm
(0603)
L1
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 .
Rev1.9 Dec. 18, 2008
P.6
6 Page FEELING
TECHNOLOGY
PACKING SPECIFICATION (Tapping Reel)
T825,T826
FD0251b
FD0255b
PACKING QUANTITY SPECIFICATION
4000ea / 1 Reel
2 Reels / 1 INSIDE BOX
4 INSIDE BOXes / 1 OUTSIDE BOX
Rev1.9 Dec. 18, 2008
P.12
12 Page | ||
Seiten | Gesamt 13 Seiten | |
PDF Download | [ FD0251bVR-G1 Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
FD0251bVR-G1 | Smart motor driver | Feeling Technology |
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