2 PHASE DC MOTOR DRIVER - Feeling Technology
Description
Technology
GENERAL DESCRIPTION
FS211F
2 PHASE DC MOTOR DRIVE IC
The FS211F, a 1-chip composed of hall sensor and output coil drivers, applied to 2-phase DC motor.
The high sensitivity of Hall effect sensor is suitable for motors from mini-type CPU coolers to blowers and DC fans.
Typical operation current is 0.
4A and operating voltage range is wide.
FG signal, an open collector, provides a square waveform output for the detection of the motor speed.
Using few external components, FS211F, a high performance integrated IC, is designed for a 2-phase DC motor circuit.
The circuit diagram of the typical application example is as below.
FEATURES
˙1 chip hall sensor/drivers ˙Wide operating voltage range: 4.
0V~20V ˙Output sink current up to 0.
4A ˙Low quiescent supply current under 5mA ˙Built-in FG output ˙Package: TO-92SP-4
TO-92SP-4
TYPICAL APPLICATION CIRCUIT
VCC
R1
FTC
S211
F
R2 C1
R3 C2
FG output
C1,C2,R2,R3 is optional for reduce electromagnetism noise.
R2,R3 must greater than 50 ohm
Rev0.
7 May.
29, 2009(LF)
P.
1 / FS211F
Technology
FUNCTIONAL BLOCK DIAGRAM
FS211F
Regulator
2
Hall Sensor Pre-driver
AMP 3
4
1
MARK VIEW
PIN DESCRIPTION
NAME FG NO.
STATUS 1 O DESCRIPTION Rotation speed output (O.
C.
) Coil driver output It is low state during the N magnetic field.
/ Power input Coil driver output It is low state during the S magnetic field.
/ Power input IC Ground
FTC
S211.
F
NO
2
O/P
SO
3
O/P
GND
4
P
1
2
3
4
Rev0.
7 May.
29, 2009(LF)
P.
2 / FS211F
Technology
ABSOLUTE MAXIMUM RATINGS
FS211F
35V
Zener Breakdown Voltage (Vz) ---------------------------------------------------------------------
NO/SO Pin Voltage (VCP(Note 1)) ----------------------------------------------------------------- 30V Peak Sink Current (Io) Hold Current-------------------------------------------------------------------------------------Continuous Current ----------------------------------------------------------------------------550mA 400mA
Peak Reverse Curren...
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