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FD0251fR-G1 の電気的特性と機能

FD0251fR-G1のメーカーはFeeling Technologyです、この部品の機能は「Smart motor driver」です。


製品の詳細 ( Datasheet PDF )

部品番号 FD0251fR-G1
部品説明 Smart motor driver
メーカ Feeling Technology
ロゴ Feeling Technology ロゴ 




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FD0251fR-G1 Datasheet, FD0251fR-G1 PDF,ピン配置, 機能
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

1 Page





FD0251fR-G1 pdf, ピン配列
FEELING
TECHNOLOGY
FD0251f
FD0255f
PWM control
PWM(pulse-width modulation) is used for the speed control for FD0255f. 2 types of PWM input signals can be
used :
1. Voltage mode PWM :
Applying a constant(DC) voltage to the PWM pin and the FD0255f will generate PWM pulses internally with
the “ON” duty cycle ratio according to the diagram below(Figure.3), which can be utilized by the user to control
the speed of the motor. The rotation speed will be higher if the voltage applied to the PWM pin is higher.
"ON" ratio
100%
0%
0.14VDD
0.5VDD
Figure.3
2. Pulse mode PWM :
User can also apply PWM pulses directly to the PWM pin. The FD0255f will pass this pulse to the coil driver
with the original duty-cycle ratio.
Note:
(1) This function is only available for FD0255f
(2) While using pulse mode PWM, the “High” Value of the input pulse should be higher than 0.5*VDD and the
“Low” value should be lower than 0.14*VDD
(3) The lower-limit for the PWM pulse frequency is 200Hz, and the recommended frequency range is higher
than 30KHz where the PWM input pulses will not generate acoustic noise.
Note. The “PWM” pin contains an internal pull-up resistor so the FD0255f will rotate at full-speed(100% ON)
when this pin is left un-connected(floating).
Rev1.2 Nov. 06, 2008
P.3


3Pages


FD0251fR-G1 電子部品, 半導体
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



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部品番号部品説明メーカ
FD0251fR-G1

Smart motor driver

Feeling Technology
Feeling Technology


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