FOSLINK FSH41

BIPOLAR HALL EFFECT POSITION SENSOR
FSH41
„
GENERAL DESCRIPTION
The FSH41 is an integrated Hall effect latched sensor designed for electronic commutation of brush-less DC motor
applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that
amplifiers the Hall voltage, and a Schmitt to provide switching hysteresis for noise rejection, and open-collector output.
An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and
allows a wide operating supply range.
A north pole of sufficient strength will turn the output ON. In the absence of a magnetic field, the output is OFF.
„
FEATURES
z
z
z
Wide operating voltage range: 3.0V~20V
Maximum output sink current 50mA
Package: SIP3
„
PIN CONFIGURATION
(Top View)
„
3
Output
2
Gnd
1
Vcc
Name
Vcc
Gnd
Output
No.
1
2
3
Status
P
P
O
Description
IC Power Supply
IC Ground
It is low state during the N magnetic field
FUNCTIONAL BLOCK DIAGRAM
Vcc
1
Regulator
Hall
Sensor
„
2 Gnd
ABSOLUTE MAXIMUM RATINGS
Vcc Pin Voltage
Output OFF Voltage,Vce
Output ON Current(Io) (Continuous Current)
Power Dissipation (Ta=25℃)
Operating Temperature Range
Storage Temperature Range
Junction Temperature
Lead Temperature(Soldering,10 sec)
1/5
3 Output
20V
30V
50mA
400mW
-40℃~+150℃
-65℃~+150℃
+150℃
+230℃
2007-1-24
BIPOLAR HALL EFFECT POSITION SENSOR
FSH41
„
DC ELECTRICAL CHARACTERISTICS
Parameter
Minimum Operating Voltage
Maximum Operating Voltage
Test Conditions
No use pin is open(Fig1)
No use pin is open(fig1)
No use pin is open
Quiescent Supply current
Icc
Vcc:3.0V~20V(Fig1)
Output Saturation Voltage
VSAT
Vcc=12V,Io=50mA(Fig1)
Note: Fig1 The IC output state is under N magnetic field.
„
Symbol
Vcc
Vcc
Max.
Unit
V
V
3.7
10
mA
400
500
mV
Saturation Voltage Unit: V
0.05
0.13
0.19
0.27
0.35
0.40
Note
AC ELECTRICAL CHARACTERISTICS
Parameter
Rise time
Fall time
„
Typ.
3.0
20.0
OUTPUT SATURATION VOLTAGE VS. OUTPUT CURRENT (IO) VCC=12V, TEMP. =25℃
Output Current (Io) Unit: mA
5
15
25
35
45
50
„
Min.
Symbol
(tr)
(tf)
Test Conditions
RL=820Ω CL=20pF(Fig1)
RL=820Ω CL=20pF(Fig1)
Min.
Typ.
0.2
0.5
MAGNETIC CHARACTERISTICS
FSH41
Parameter
Bop
Brp
Bhys
Ta=-40℃~+150℃
Max.
+70
Min.
Unit
G
G
G
-70
140
Vout
S
Vcc
Mark
Vd
H
Bh
L
N
N
Bop
Brp
Vsat
2/5
Max.
0
S
Magnetic flux density
2007-1-24
Unit
µS
µS
BIPOLAR HALL EFFECT POSITION SENSOR
FSH41
„
Test Circuits
FSH41
Vcc
RL=820Ω
CL=20pF
Vout
Fig1
„
TYPICAL APPLICATION CIRCUIT
V+=40V
100µF
0.1µF
100µF
15V
0.1µF
0.1µF
20µF
Foward/Reverse
Speed Adjust
Thermal Switch
0.1µF
Rosc 1KΩ
10KΩ
Cosc
0.005µF
H1
500Ω
H2
H3
Vref
1
Supply Voltage
Cap Boost"A" 24
2
3
VrefOut
Hall"A"Input
4
Hall"B"Input
Gate Top"A" 23
Feedback"A" 22
Cap Boost"B" 21
5
Hall"C"Input
6
FWD/RE Input
7
Speed Adjust Input
Gate Top"B" 20
Feedback"B" 19
Cap Boost"C" 18
8 Oscillator Control
Gate Top"C" 17
9 (+)CurrentLimit(Brake) Feedback"C" 16
10 Analog Ground
Gate Bottom"A" 15
11 (-)CurrentLimit(Reset)Gate Bottom"B" 14
12 Power Ground
Gate Bottom"C" 13
22Ω
10µF
BLDC Motor
Vref
22Ω
10µF
22Ω
10µF
Vref
22Ω
UF4002
(3 Places)
22Ω
22Ω
Counter Reset
1K
Filter
1K
Isense Resistor
Brake
3/5
2007-1-24
BIPOLAR HALL EFFECT POSITION SENSOR
FSH41
„
HALL SENSOR LOCATION
The Fig2 is hall sensor location, where marks the IC number.
X
Unit
Y
X
2.1
mm
Y
1.55
mm
Fig2 FSH41 Hall Sensor Location
„
ORDERING INFORMATION
FSH41XXX
Package:
M: SIP3
„
4/5
Packing:
Blank: Tube or Bulk
Temperature Grade:
F: -40~150℃
MARKING INFORMATION
2007-1-24
BIPOLAR HALL EFFECT POSITION SENSOR
FSH41
PACKAGE INFORMATION
L1
A1
A
„
E
θ
Symbol
A
A1
B
b
C
c
D
d
E
e
L
L1
θ
5/5
Dimensions In Millimeters
Nom.
Max.
1.50
1.60
0.74
0.79
2.62
2.72
1.27
1.32
0.58
0.331
0.381
0.431
3.9
4.0
4.1
0.1
3.0
3.1
3.2
2.44
2.54
2.64
13.0
14.0
15.0
0.35
0.38
0.41
45ο
Min.
1.40
0.69
2.52
1.22
c
b
B
D
C
e
d
L
Min.
0.055
0.027
0.099
0.048
Dimensions In Inches
Nom.
0.059
0.029
0.103
0.05
0.013
0.154
0.015
0.157
0.120
0.096
0.51
0.014
0.124
0.100
0.55
0.015
2007-1-24
Max.
0.063
0.031
0.107
0.052
0.023
0.017
0.160
0.004
0.128
0.104
0.59
0.016
45ο