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Número de pieza | FD0259f | |
Descripción | Smart motor driver | |
Fabricantes | Feeling Technology | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de FD0259f (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
No Preview Available ! FEELING
TECHNOLOGY
FD0259f
Smart motor driver with embedded Hall sensor
Features
Motor driver with high sensitivity Hall-effect sensor
H-Bridge MOS driver
Lock-shutdown protection & auto-restart function
Built-in tachometer signal output (FG)
“Soft-switch” phase-switching technique to reduce vibration and acoustic noise
Thermal shutdown protection (TSD)
PWM mode variable speed control
Available in TS826 package
For 5V DC motor / FAN systems
Halogen Free
General Description
FD0259f is a single-phase full-wave motor driver with embedded Hall-effect sensor. It integrates a H-bridge MOS
driver, a high sensitivity Hall-effect sensor, an event timer for locked rotor detection, and the variable speed control
function with the tachometer or alarm signal output logic into the ultra-small TS826 package, which make the
motors’ PCB (printed circuit board) design easier and the fabrication of small-size DC motors or FANs as simple as
possible.
The external system could read the motor’s speed of rotation from FG signal of FD0259f.
For safety, Lock-shutdown function turns the IC’s internal driver off to avoid over-heating when the rotor is locked,
and the IC will try to re-start the motor after the shutdown interval.
Thermal-shutdown protection (TSD) ensures the internal driver of IC is operating under the safe operating
temperature range.
All the protection mechanisms mentioned above combine to provide a complete protecting scenario in the motor
system and avoid any possible damages and guarantee under a correct and safe operation.
Block Diagram
Bias Generator
Hall Plate
Chopper Amplifier PWM Control
Oscillator
Power On
Reset
Digital Control Logic
(Event Timer)
Figure.1
H-Bridge
MOS 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 Aug. 12, 2009
P.1
1 page FEELING
TECHNOLOGY
Performance Graphs
RDSON vs. TA
1.2
1
0.8
0.6
0.4
0.2
0
-20 -10 0 10 20 30 40 50 60 70 80 90 100 110
TA (oC)
Figure.6
Vdd=1.8V
Vdd=3V
Vdd=5.5V
Magnetic parameters vs. TA
30
25
20
15
10
5
0
-5
-10
-15
-20 -10 0 10 20 30 40 50 60 70 80 90 100 110
TA (oC)
Figure.8
Bop, Vdd=1.8V
Brp, Vdd=1.8V
Bhyst, Vdd=1.8V
Bop, Vdd=5.5V
Brp, Vdd=5.5V
Bhyst, dd=5.5V
FD0259f
RDSON vs. VDD
1.2
1
0.8
0.6
0.4
0.2
0
0123456
VDD(volts)
Figure.7
Ta = -20
Ta = 25
Ta = 105
Magnetic parameters vs. VDD
30
25
20
15
10
5
0
-5
-10
-15
01234 56
VDD(volts)
Figure.9
Bop, Ta=25
Brp, Ta=25
Bhyst, Ta=25
IDD vs TA
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
-20 -10 0 10 20 30 40 50 60 70 80 90 100 110
TA (oC)
Figure.10
Vdd=1.8V
Vdd=3V
Vdd=5.5V
IDD vs VDD
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0 12 3 45 6
VDD (volts)
Figure.11
Ta = -20
Ta = 25
Ta = 105
Rev1.3 Aug. 12, 2009
P.5
5 Page FEELING
TECHNOLOGY
TS826
FD0259f
Top view: marking side
Rev1.3 Aug. 12, 2009
P.11
11 Page |
Páginas | Total 12 Páginas | |
PDF Descargar | [ Datasheet FD0259f.PDF ] |
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