SITI FD212 Single coil brushless dc motor drivers built-in hall sensor ( 2 to 5.5 volts ) Datasheet

11-FD212
Version
: A.003
Issue Date : 2007/01/08
File Name : SP-11FD212-A.003.doc
Total Pages: 8
Single Coil Brushless
DC Motor Drivers Built-in Hall Sensor
( 2 to 5.5 Volts )
新竹市展業一路 9 號 7 樓之 1
SILICON TOUCH TECHNOLOGY INC.
9-7F-1, Prosperity Rd I, Science-Based Industrial Park
Hsinchu, Taiwan, R.O.C.
Tel:886-3-5645656
Fax:886-3-5645626
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
FD212
11-FD212
Single Coil Brushless DC
Motor Drivers Built-in Hall Sensor ( 2 to 5.5 Volts)
General Specifications
The device is designed specifically for electronic commutation of single coil DC
motor applications. Each device includes a HALL sensor, a frequency generator
output, a lock detection circuit to shut down the drivers for overheat prevention,
and complementary bi-directional drivers for driving and sinking large load on a
single silicon chip.
If the motor rotation is stalled by external force or obstacles, overdrive current
( or lock current ) may incur coil overheat/burning. To prevent coil
overheat/burning, these devices incorporate lock detection circuit to shut down
the drivers. After the motor locking is released, the drivers can be powered up
using an automatic self-restart circuit. The drivers are shut down roughly 1 to 3
seconds after the motor is locked. After the drivers are shut down, the automatic
self-restart circuit will try to power up the drivers every 1 to 3 seconds.
SP-FD212-A.003
Version:A.003
Page:1
點晶科技股份有限公司
FD212
SILICON TOUCH TECHNOLOGY INC.
Pin Description
(LFCSP8)
FG
O2
NC
NC
VDD
NC
PIN NO.
PIN NAME
DESCRIPTION
GND
O1
PIN NO.
PIN NAME
DESCRIPTION
1
NC
No connection
5
O1
Output driving/sinking pin 1
2
NC
No connection
6
GND
Ground pin
3
VDD
Power supply pin
7
O2
Output driving/sinking pin 2
4
NC
No connection
8
FG
Frequency generator output
(SOT-25)
PIN NO. PIN NAME
O2
O1
GND
VDD
FG
DESCRIPTION
1
O2
Output driving/sinking pin 2
2
VDD
Power supply pin
3
FG
Frequency generator output
4
GND
Ground pin
5
O1
Output driving/sinking pin 1
Features and Benefits
z
z
z
z
z
z
z
Optimized for single coil Brushless DC Motor applications
Built-in Hall effect sensor
Built-in Reverse Protection
Frequency generator output
Lock detection and automatic self-restart without external capacitor
High output sinking and driving capability
Ultra-thin, small and highly reliable package (LFCSP8,SOT-25)
SP-FD212-A.003
Version:A.003
Page:2
點晶科技股份有限公司
FD212
SILICON TOUCH TECHNOLOGY INC.
Absolute Maximum Ratings ( Unless otherwise noted, TA = 25 °C )
Characteristic
Supply Voltage
Input Voltage from a Hall Effect Latch Output
Output Current
Maximum Power Dissipation of LFCSP8
Symbol
VDD
VIN
IOUT
PD1,max
Rating
6.5
VDD+0.4
350
600
Unit
V
V
mA
mW
θJA1
208.5
°C/ W
PD2,max
360
mW
Thermal Resistance SOT25
θJA2
347
°C/ W
Operating Temperature Range
TOPR
-40 ~ 125
°C
Storage Temperature Range
TSTG
-65 ~ 150
°C
Thermal Resistance LFCSP8
Maximum Power Dissipation of SOT25
Electrical Characteristics ( TA= 25°C )
Characteristic
Sym.
Supply Voltage
VDD
Supply Current
IDD
Limit
Condition
Operating
Unit
Min.
Typ.
Max.
2
3.3
5.5
V
5
10
mA
Auto-restart operating
Magnetic Specifications ( TJ = 25℃)
Operating Point
BOP
-
1.0
10
mT
Release Point
BRP
-
-1.0
-10
mT
Hysteresis
BHYS
-
2.0
20
mT
O1/O2 Output Terminal ( TJ = 25℃)
Output Voltage High
VOH
IOUT = 300 mA
4.7
-
-
V
Output Voltage Low
VOL
IOUT = 300 mA
-
-
0.3
V
Output Current
IOUT
RL = 30Ω
-
148
-
mA
FG Open-Drain Terminal ( TJ = 25℃)
Output Leakage Current
IFGLEK
VFG = 5 V
Output Voltage Low
VFGOL
IFG= 10 mA
5
μA
0.4
V
ms
Automatic Self-Restart Circuit
On Time
TON
Duty Ratio
RDR
SP-FD212-A.003
TOFF / TON
Version:A.003
-
152
-
6
7
8
Page:3
點晶科技股份有限公司
FD212
SILICON TOUCH TECHNOLOGY INC.
Block Diagram & Application Circuit
POWER
VDD
Power
FG
TACHO
GENERATOR
HALL
FG
IC
O1
+
DRIVERS
-
LOGIC
BLOCK
O2
LOCK DETECTION
GND
Application Notes
There is no requirement of the bypass capacitor or Zener Diode between VDD
and GND in normal applications. The connection of this capacitor or Zener Diode
will increase stability of operation, if required.
The FG pin is an open-drained output. The output frequency is corresponding to
the rotation speed sensed by the built-in Hall effect position sensor. With suitable
output pull-up, the fan tachometer output can be used directly with bipolar or
MOS logic for motor speed monitoring/control.
The power dissipated by the IC varies widely with the supply voltage, the output
current, and loading. It is important to ensure the application does not exceed
the allowable power dissipation of the IC package. The recommended motor
driver power dissipation versus temperature of SOT25 and LFCSP8 are depicted
as follows:
Power Dissipation-Temperature (SOT25)
Power Dissipation-Temperature (LFCSP8)
800
Power Dissipation (mW)
Power Dissipation (mW)
500
450
400
350
300
250
200
700
600
500
400
300
150
200
100
100
50
0
0
0
25
50
75
100
125
150
Ambient Temperature ( ℃ )
SP-FD212-A.003
0
25
50
75
100
125
Ambient Temperature ( ℃ )
Version:A.003
Page:4
150
點晶科技股份有限公司
FD212
SILICON TOUCH TECHNOLOGY INC.
Electrical Characteristic (TA= 25°C)
◎The BOP versus supply voltage curve.
◎The BRP versus supply voltage curve.
BOP versus Supply Voltage
BRP versus Supply Voltage
20.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
15.0
-5.0
Flu x Den sity ( G)
Flu x D en sity (G )
0.0
10.0
5.0
-10.0
-15.0
0.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
-20.0
Su p p ly Vo ltage (V)
Su p p l y Vo l t ag e (V)
◎The Hysteresis versus supply voltage curve.
◎The saturation voltage of output.
Saturation Voltage versus Output Current
BHYS versus Supply Voltage
6.0
30.0
4.0
20.0
Voltage ( V)
Delta Flu x D en si t y (G )
5.0
25.0
15.0
VO1
VO2
10.0
2.0
5.0
1.0
0.0
2.0
3.0
4.0
5.0
6.0
Su p p l y Vo l t ag e (V)
SP-FD212-A.003
7.0
8.0
VDD
3.0
0.0
50.00
100.00
150.00
200.00
Ou tp u t C u r r en t ( m A)
Version:A.003
Page:5
點晶科技股份有限公司
FD212
SILICON TOUCH TECHNOLOGY INC.
Package Specifications
( LFCSP8 )
□
(LFCSP8 )
Bottom View
Top View
e1
8
5
8
5
L
Hall Sensor
Location
SXXX
E
E1
1.0 +- 0.1mm
1
4
b
1
e
4
0.7+-0.1mm
D
D1
Hall Sensor
xxx is the run code.
Location
0.12mm
A
A3
A1
y
e
Dimensions (mm)
SYMBOL
SP-FD212-A.003
MIN
A
A1
A3
b
D
D1
E
E1
e
0.15
1.90
1.55
1.90
0.85
-
e1
L
Y
0.25
-
0.00
-
-
Version:A.003
NOM
0.02
0.127
0.20
2.00
1.60
2.00
0.90
0.50
1.50
0.35
-
MAX
0.425
0.05
-
0.25
2.10
1.65
2.10
0.95
-
-
0.45
0.08
Page:6
點晶科技股份有限公司
FD212
SILICON TOUCH TECHNOLOGY INC.
( SOT-25 )
(5-pin SOT-25 )
D
e
H
C
Hall Sensor
Location
E
0.8+-0.1
L
θ1
1.05+-0.1
A2
A
A1
b
SYMBOL
Dimensions in Millimeters
MIN
NOM
A
A1
0.90
0.00
1.10
-
MAX
1.30
0.15
A2
b
C
D
E
e
0.70
0.35
0.08
2.70
1.40
-
0.80
0.40
0.15
2.90
1.60
1.90(TYP)
0.90
0.50
0.25
3.10
1.80
-
H
L
2.60
0.35
2.80
-
3.00
-
θ1
0°
5°
10°
The products listed herein are designed for ordinary electronic applications, such as
electrical appliances, audio-visual equipment, communications devices and so on.
Hence, it is advisable that the devices should not be used in medical instruments,
surgical implants, aerospace machinery, nuclear power control systems,
disaster/crime-prevention equipment and the like. Misusing those products may
directly or indirectly endanger human life, or cause injury and property loss.
Silicon Touch Technology, Inc. will not take any responsibilities regarding the
misusage of the products mentioned above. Anyone who purchases any products
described herein with the above-mentioned intention or with such misused applications
should accept full responsibility and indemnify. Silicon Touch Technology, Inc. and its
distributors and all their officers and employees shall defend jointly and severally
against any and all claims and litigation and all damages, cost and expenses associated
with such intention and manipulation.
SP-FD212-A.003
Version:A.003
Page:7
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