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Teilenummer | FD1257H-G1 |
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Beschreibung | Smart motor driver | |
Hersteller | Feeling Technology | |
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Gesamt 10 Seiten FEELING
TECHNOLOGY
FD1257H
Smart motor driver with embedded Hall sensor
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
Thermal shutdown protection
Available in SIP-4L packages
For 12V systems
Halogen Free
General Description
FD1257H 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.
Rev1.7 Nov. 21, 2008
P.1
FEELING
TECHNOLOGY
Lock shutdown – Restart Timing Description:
FD1257H
(TON)
(TOFF)
Channel4: VDD pin current waveform
Channel3: Output (SO pin) voltage waveform
Channel1: Output (NO pin) voltage waveform
Note: The North pole (B > Bop) is applied facing the branded side of the package.
Rev1.7 Nov. 21, 2008
P.6
6 Page | ||
Seiten | Gesamt 10 Seiten | |
PDF Download | [ FD1257H-G1 Schematic.PDF ] |
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