FS211LF-A 概述
2 PHASE DC MOTOR DRIVE IC
FS211LF-A 数据手册
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PDF下载FS211F
2 PHASE DC MOTOR DRIVE IC
Technology
GENERAL DESCRIPTION
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
FS211F
Technology
FUNCTIONAL BLOCK DIAGRAM
2
Regulator
Hall Sensor
Pre-driver
AMP
3
4
1
MARK VIEW
PIN DESCRIPTION
NAME
NO. STATUS
DESCRIPTION
FTC
S211.
FG
NO
1
2
O
Rotation speed output (O.C.)
Coil driver output
F
O/P It is low state during the N
magnetic field. / Power input
Coil driver output
SO
3
4
O/P It is low state during the S
magnetic field. / Power input
GND
P
IC Ground
1
2
3
4
Rev0.7 May. 29, 2009(LF)
P. 2 / FS211F
FS211F
Technology
ABSOLUTE MAXIMUM RATINGS
Zener Breakdown Voltage (Vz) ---------------------------------------------------------------------
35V
NO/SO Pin Voltage (VCP(Note 1)) ----------------------------------------------------------------- 30V
Peak Sink Current (Io)
Hold Current-------------------------------------------------------------------------------------- 550mA
Continuous Current ----------------------------------------------------------------------------- 400mA
Peak Reverse Current (IR) ------------------------------------------------------------------------------- 100mA
FG Pin OFF Voltage (VFG) ------------------------------------------------------------------------------ 30V
FG Sink Current (IFG) -------------------------------------------------------------------------------------- 10mA
Power Dissipation
Ta=25oC ----------------------------------------------------------------------------------------------- 600mW
Ta=70oC ---------------------------------------------------------------------------------------------- 450mW
Operating Temperature Range ------------------------------------------------------- -20oC~+90 oC
Storage Temperature Range -------------------------------------------------------------- -65 oC~+150oC
o
Junction Temperature -------------------------------------------------------------------------- +150 C
Lead Temperature (Soldering, 10 sec) ------------------------------------------------------------- +260 oC
Note 1: VCP mean Coil Power
oC
255 ± 5
10 ± 1 sec
150 ± 10o
C
90 ± 30 sec
oC
2 ~ 5 / sec
oC
2 ~ 5
/ sec
SECOND
Soldering Condition
Rev0.7 May. 29, 2009(LF)
P. 3 / FS211F
FS211F
Technology
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Minimum Operating Voltage
VCP
No use pin is open (Fig1)
4.0
V
V
ICP<10mA No use pin is
open (Fig1)
MaximumOperating Voltage
Quiescent Supply current
VCP
ICP
20.0
No use pin is open VCP
:
2.0
7.0
mA
4.0V~20V (Fig1)
NO/SO Saturation Voltage
FG OFF Leakage Current
FG ON Saturation Voltage
VSAT
IOFF
VON
Io = 300mA (Fig1)
(Fig2)
1.5
1
V
μA
V
IC=5mA(Fig2)
0.2
0.5
Note: Fig1 The IC output state is under N magnetic field.
AC ELECTRICAL CHARACTERISTICS
PARAMETER
Rise time
SYMBOL
TEST CONDITIONS
RL=1K CL=10pF (Fig3)
RL=1K CL=10pF (Fig3)
MIN TYP MAX UNIT
(tr)
500
500
nS
nS
(t )
ƒ
Fall time
Rev0.7 May. 29, 2009(LF)
P. 4 / FS211F
FS211F
Technology
MAGNETIC CHARACTERISTICS
Ta=-20 oC~+90 oC
FS211F_LF-A
PARAMETER
MIN
MIN
MIN
TYP
+60
-60
MAX
UNIT
G
Bop
Brp
G
Bhys
120
MAX
120
G
Ta=-20 oC~+90 oC
FS211F_LF-B
PARAMETER
Bop
TYP
+90
-90
UNIT
G
Brp
G
Bhys
G
Ta=-20 oC~+90 oC
FS211F_LF-C1
PARAMETER
Bop
TYP
+110
-110
MAX
UNIT
G
Brp
G
Bhys
120
G
FS211 HYSTERESIS CHARACTERISTICS
V
NO
V
SO
V
V
B
-60
+60
B
-60
+60
( -90
,
+90 )
( -90
,
+90 )
PIN
NO
PIN
SO
Rev0.7 May. 29, 2009(LF)
P. 5 / FS211F
FS211F
Technology
TEST CIRCUITS
R2
R1
FS211F
V2
V1
A
V
ICP
VCP
VSAT
V
NC
Fig.1 Test Circuit
R3
FS211F
V 2
V1
R2
R1
A
V
Fig.2 Test Circuit
V2
V1
FS211F
R3
R2 R1
10PF
10PF
10PF
Fig. 3 Test Circuit
Rev0.7 May. 29, 2009(LF)
P. 6 / FS211F
FS211F
Technology
FUNCTION DESCRIPTIONS
Hall Sensor Location
The figure 4 is the hall sensor location, where marks the IC number. The best sensitivity, which
can be intensified as much as possible, depends on the vertical distance and position between
magnetic pole and the hall sensor (figure 5). For the 2-phase motor, this design is very
important.
X
Y
Unit
mm
mm
X
Y
1.75
1.35
Fig.4 FS211F Hall Sensor Location
S
N
d
Fig.5 Magnetic Distribution
Rev0.7 May. 29, 2009(LF)
P. 7 / FS211F
FS211F
Technology
Darlington-pair Transistor Output
The figure 6 is the circuit diagram of Darlington-pair transistor. Under the heavy current loading,
the power loss of the high saturation voltage can be calculated into the following formula:
Pc= (VBEQ1+VCE(SAT)Q2) * Io
According to the IC package and the curve of the power loss, the Pc should be applied to and
within the safety value.
30V is the voltage of Zener breakdown diode. However, if the voltage, excluding that of the
power supply, is more than 30V under the long-time operation, the diode will be destroyed.
2,3
+
VCE(SAT)
Q2
_
Q1
+
VB E
_
Fig. 6 Darlington-pair Transistor Output
Rev0.7 May. 29, 2009(LF)
P. 8 / FS211F
FS211F
Technology
FG Output: The Circuit Diagram of Open Collector Transistor
Figure 7 the small signal transistor output connected with the pull-up resistance is to limit the
current and confirm the voltage level of rotation speed. The situation of the long-time operation
with the high voltage or with the high current will do damage to the transistor and cause FG
malfunction.
Figure 8 illustrates the relation between dynamic magnetic field and FG.
VC
Pull-up resistance
FG output
R
1
Fig.7 FG Circuit Diagram
N pole
0
S pole
VFG
(Depend on supply voltage)
0V
Fig.8 FG Waveform
Rev0.7 May. 29, 2009(LF)
P. 9 / FS211F
FS211F
Technology
APPLICATION NOTE
The Example of Typical Application Circuit
Figure 9 is the example of typical application circuit. The red, yellow, and black wires are the
input points of the motor system: red, the inputs of power supply; yellow, the output of FG; black,
the ground signal. Rc is an external pull-up resistance for the use of measuring FG signal. In
view of the design, the value of Rc could be decided by the transistor saturation voltage (VON),
sink current (IC), and off-level voltage (VC).
The formula is: RC=(VC-VON) / IC
For example:
Vc = +5V for TTL level.
Ic = 5mA at 0.5V saturation voltage (IC specification.)
The safety value of Rc= 1K
Ω
D1 is the reverse protection diode. As if the red and black wires reversely connect with the
power source, the current will flow through the ground via IC and coils L1 and L2 to power
supply. Under such kind of circumstances, the IC and coils are easy to be burned out.
Therefore, D1, the reverse protection diode, is necessary for the design. However, D1 will also
cause an extra voltage drop on the supply voltage.
C1 is a capacitor to reduce the ripple noise caused during the transient of the output stages.
The volume of the ripple noise depends on the coil impedance and characteristics.
VCC
D1
R wire
C1
VC
RC
IC
L1
L2
FG
NO
SO
FS211F
FG
Y wire
OUTPUT
B wire
Internal circuit of 2-phase DC motor
Fig.9 Application Circuit
Rev0.7 May. 29, 2009(LF)
P. 10 / FS211F
FS211F
Technology
Package Outline (LEAD FREE) Unit:mm
5.23 0.12
1.55 0.25
0.73 0.03
4.2 0.1
0.457 0.025
0.38 0.05
0.39 0.05
1.27 0.025
Rev0.7 May. 29, 2009(LF)
P. 11 / FS211F
FS211F
Technology
BAG & BOX DIMENSION
160 mm
100 mm
FTC Logo
BAG LABEL
BAG
BOX
LABEL
630 mm
190 mm
INSIDE BOX
400mm
650mm
CARTON
LABEL
FTC Logo
CARTON
PACKING QUANTITY SPECIFICATIONS
1000 EA/1 BAG
25 BAGS/1 INSIDE BOX
4 INSIDE BOXES/1 CARTON
Rev0.7 May. 29, 2009(LF)
P. 12 / FS211F
FS211F
Technology
LABEL SPECIFICATIONS
7.5 cm
Feeling Technology Corp.
Product Type:
FS211LF- X
Lot No:
XXXXXXXXX
XXX
5.5 cm
Date Code:
Package Type:
Marking Type:
Tatal Q'ty:
SIP- 4L
XXXXX
無鉛
Lead Free
XXXXX
BAG LABEL, INSIDE BOX & CARTON LABEL
ORDER INFORMATION
Part Number
Operating Temperature
Package
Description
-20
-20
-20
℃
℃
℃
~ +90
~ +90
~ +90
℃
℃
℃
FS211LF-A
TO-92SP-4
±60G (B)
FS211LF-B
TO-92SP-4
TO-92SP-4
±90G (B)
FS211LF-C1
±110G (B)
Rev0.7 May. 29, 2009(LF)
P. 13 / FS211F
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