Document
Technology
GENERAL DESCRIPTION
FS310
SINGLE PHASE DC MOTOR DRIVE IC
The FS310, a 1-chip composed of hall sensor and output coil drivers, applied to a single-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 0.3A and operating voltage range is wide. Using few external components, FS310, a high performance integrated IC, is designed for a single-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: 3.0V~20V ˙Output sink current up to 0.3A ˙Package : TO92-4L
TO-92SP-4
TYPICAL APPLICATION CIRCUIT
VCC
FTC
S310
Rev0.4 Jan. 18, 2009(LF) P1/FS310
Technology
FUNCTIONAL BLOCK DIAGRAM
FS310
1
Regulator 2
Hall Sensor Pre-driver
AMP
3 4 Thermal shutdown
MARK VIEW
PIN DESCRIPTION
NAME NO. STATUS DESCRIPTION
FTC
S310.
VCC 1 P IC Power Supply Coil driver output It is low state during the N magnetic field. Coil driver output It is low state during the S magnetic field. IC Ground NO 2 O
SO
3
O
1
2
3
4
GND 4 P
Rev0.4 Jan. 18, 2009(LF) P2/FS310
Technology
ABSOLUTE MAXIMUM RATINGS
VCC Pin Voltage -----------------------------------------------------------------------------Output Peak Sink Current (Io) Peak Current -----------------------------------------------------------------------Hold Current ------------------------------------------------------------------------Continuous Current ----------------------------------------------------------------
FS310
20V
800mA 600mA 300mA
Power Dissipation Ta=25 C ----------------------------------------------------------------------------Ta=70 C ----------------------------------------------------------------------------Operating Temperature Range ---------------------------------------------------Storage Temperature Range -----------------------------------------------------o o o
600mW 450mW -20 C~85 C -65 C~150 C
o o o o
Junction Temperature -----------------------------------------------------------------------
+150 C
o
Lead Temperature (Soldering, 10 sec) --------------------------------------------------
+260 C
255 ± 5oC 10 ± 1 sec ROOM TEMP 150 ± 10 oC 90 ± 30 sec
2 ~ 5 oC / sec 2 ~ 5
o
C / sec
SECOND
Soldering Condition
Rev0.4 Jan. 18, 2009(LF) P3/FS310
Technology
DC ELECTRICAL CHARACTERISTICS
PARAMETER SYMBOL TEST CONDITIONS MIN
FS310
TYP MAX UNIT
Supply Voltage Quiescent Supply current
VCC ICC
-
Vcc= 20V No use pin open (Fig1)
3 — — Vcc-1.5V
— 18
20 25
V mA V V
Vce(sink) Vcc=14V, Ic = 200mA Output Saturation Voltage Vce(drive) Vcc=14V, Ic = 200mA Note: Fig1 The IC output state is under N magnetic field.
0.55 0.80 — Vcc
AC ELECTRICAL CHARACTERISTICS
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Rise time Fall time Switch Time Differential
(tr) (tƒ )
RL=820Ω CL=20pF (Fig 2) RL=820Ω CL=20pF (Fig 2) RL=820Ω CL=20pF (Fig 2)
0.5 0.5 1.0
1.0 1.5 0.5
µs µs µs
Δt
Rev0.4 Jan. 18, 2009(LF) P4/FS310
Technology
MAGNETIC CHARACTERISTICS
FS310LF-A
PARAMETER
Bop Brp Bhys -65 130
FS310
Ta= -20 oC~85 oC
MIN MAX
+65
UNIT
G G G
FS310LF-B
PARAMETER
Bop Brp Bhys -80
Ta=-20 oC~85 oC
MIN MAX
+80 130
UNIT
G G G
FS310 HYSTERESIS CHARACTERISTICS
VNO
V
VSO
V
-65
+65
B
-65
+65
B
NO
PIN
SO
PIN
Rev0.4 Jan. 18, 2009(LF) P5/FS310
Technology
TEST CIRCUITS
FS310
FTC
S310
A Vcc V
R1
A
R2
V
V1
Fig 1. Test circuit
FTC
S310
R
Vcc
Fig 2. Test circuit
Rev0.4 Jan. 18, 2009(LF) P6/FS310
Technology
TYPICAL CHARACTERISTICS
45 40 35 30 25 20 15 10 0 4 12 16 20 -20 -25 -30 -35 -40 -45 -50 8 -55 0 4 12
FS310
BOP-GAUSS
BRP-GAUSS
8
16
20
Vcc-V Figure 1
95 90 85 80 75 70 65 60 0 4 12 16 20 45 40 35
Vcc-V Figure 2
BHYS-GAUSS
BOP-GAUSS
8
30 25 20 15 10 -20 20 60 80 100
40
Vcc-V Figure 3
-25 -30 85 80
TEMPERATURE ℃ Figure 4
BHYS-GAUSS
BRP-GAUSS
-35 -40 -45 -50 -55 -60 -20 20 60 80 100
75 70 65 60 55 50 -20 20 60 80 100
40
40
TEMPERATURE ℃ Figure 5
TEMPERATURE ℃ Figure 6
Rev0.4 Jan. 18, 2009(LF) P7/FS310
Technology
FUNCTION DESCRIPTIONS
HALL SENSOR LOCATION
The Fig 4 is the hall sensor location, where marks the IC number.
FS310
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 (Fig 5). is very important.
X UNIT X Y 1.75 1.35 mm mm
For the single-phase motor, this design
Y
Fig 4 FS310 Hall Sensor Location
N
S d
d1: hall sensor to case is 0.52mm Fig 5 Magnetic Distribution and Z-axis position
Rev0.4 Jan. 18, 2009(LF) P8/FS310
Technology
H-BRIDGE TRANSISTOR OUTPUT
FS310
The Fig 6 is the circuit diagram of H-bridge transistors. The single-phase motor rotation depends on a switching current of coil L1. When the magnetic pole is N pole, Q2, Q3, Q5 is turn-off and Q1, Q4, Q6 is turn-on, L1 has a current from SO to NO. And when the magnetic pole is S pole, Q1, Q4, Q6 is turn-off and Q2, Q3 is.