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What is FD1257AH?

This electronic component, produced by the manufacturer "Feeling Technology", performs the same function as "Smart motor driver".


FD1257AH Datasheet PDF - Feeling Technology

Part Number FD1257AH
Description Smart motor driver
Manufacturers Feeling Technology 
Logo Feeling Technology Logo 


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FEELING
TECHNOLOGY
FD1257AH
Smart motor driver with embedded Hall sensor
Features
Motor driver with high sensitivity Hall-effect sensor
Halogen Free
H-Bridge MOS driver
Lock-shutdown protection & auto-restart function
“Soft-switch” phase-switching technique to reduce vibration and acoustic noise
Thermal shutdown protection(TSD)
Available in SIP-4L package
For 5V and 12V DC motor / FAN systems
General Description
FD1257AH is a single-phase full wave motor driver with embedded Hall-effect sensor IC. It integrates a H-bridge
MOS driver, a high sensitivity hall-effect sensor, an event timer for rotor locked in SIP-4L package, which make the
motors’ PCBs(printed circuit boards) design easy and fabricate the high efficiency DC motors or FANs as simply as
possible.
For safety, Lock-shutdown function would turn the IC’s internal drivers off avoiding over-heat when the rotor is
locked, and IC will try to re-start the rotor’s torque after the time of these drivers’ shutdown.
Thermal-shutdown protection (TSD) ensures the internal drivers of IC are operating under a 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
Oscillator
Power On
Reset
Chopper Amplifier
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.
Rev1.2 Aug. 25, 2009
P.1

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FD1257AH equivalent
FEELING
TECHNOLOGY
Performance Graphs
RDSON vs. TA
7
6
5
4
3
2
1
0
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
TA (oC)
Figure.4
Vdd=2.5V
Vdd= 5V
Vdd=12V
Vdd=17V
FD1257AH
RDSON vs. VDD
7
6
5
4
3
2
1
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
V DD(volts )
Figure.5
Ta = -40
Ta = 25
Ta = 85
Magnetic parameters vs. TA
60
50
40
30
20
10
0
-10
-20
-30
-40
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
TA (oC)
Figure.6
Bop, Vdd=2.5V
Brp, Vdd=2.5V
Bhyst, Vdd=2.5V
Bop, Vdd=17V
Brp, Vdd=17V
Bhyst, dd=17V
Magnetic parameters vs. VDD
50
40
30
20
10
0
-10
-20
-30
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
VDD(volts)
Figure.7
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
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
TA (oC)
Figure.8
Vdd=2.5V
Vdd= 5V
Vdd=12V
Vdd=17V
IDD vs VDD
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
VDD (volts)
Figure.9
Ta = -40
Ta = 25
Ta = 85
Rev1.2 Aug. 25, 2009
P.5


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for FD1257AH electronic component.


Information Total 12 Pages
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FD1257AHThe function is Smart motor driver. Feeling TechnologyFeeling Technology

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