SS5881 [SECELECTRONICS]
Unipolar Hall Switch-Low Sensitivity; 单极霍尔开关 - 低灵敏度
| 型号： | SS5881 |
| 厂家： | 
SEC Electronics Inc. |
| 描述： | Unipolar Hall Switch-Low Sensitivity |
| 文件： | 总7页 (文件大小：198K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SS5881
Unipolar Hall Switch-Low Sensitivity
Application Examples
Features and Benefits
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Automotive, Consumer and Industrial
Solid-state switch
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3.5V to 24V Operation
-40℃ to 150℃ Superior temperature operation
CMOS technology
Low current consumption
Chopper-stabilized amplifier stage
Open drain output
Low sensitivity
Small Size-SOT23 3L or SIP 3L
both RoHS compliant packages
Brushless DC motor commutation
Speed detection
Angular position detection
Proximity detection
Current detector
3 pin SOT23 (suffix SO)
3 pin SIP (suffix UA)
Functional Block Diagram
VDD
Voltage
Regulatr
OUT
Chopper
Hall
Plate
GND
SIP Package
Pin 1 – VDD
Pin 2 – GND
Pin 3 – OUT
SOT Package
Pin 1 – VDD
Pin 2 – OUT
Pin 3 – GND
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V2.00 May 1, 2012
SS5881
Unipolar Hall Switch-Low Sensitivity
General Description
The S5881 is a unipolar Hall-effect sensor IC fabricated
from CMOS technology. The device integrates a voltage
regulator, Hall sensor with dynamic offset cancellation
system, small signal amplifier, Schmitt trigger and an
open-drain output driver. With suitable output pull up, they
can be used with bipolar or CMOS logic circuits.
more stable with both temperature and supply voltage
changes. The unipolar switching characteristic makes these
devices ideal for use with a simple bar or rod magnet.
Thanks to its wide operating voltage range and extended
choice of temperature range, it is quite suitable for use in
automotive, industrial and consumer applications.
These Hall-effect switches are monolithic integrated circuits
with tighter magnetic specifications, designed to operate
continuously over extended temperatures to +150℃,and are
The device is delivered in a Small Outline Transistor (SOT)
or in a Plastic Single In Line (SIP 3L flat). Both 3-lead
packages are RoHS compliant.
Glossary of Terms
MilliTesla (mT),
RoHS
Gauss Units of magnetic flux density: 1mT = 10 Gauss
Restriction of Hazardous Substances
Magnetic flux density applied on the branded side of the package which turns the output
driver ON (VOUT = VDSon
Operating Point (BOP
)
)
Release Point (BRP
)
Magnetic flux density applied on the branded side of the package which turns the output
driver OFF (VOUT = high)
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SS5881
Unipolar Hall Switch-Low Sensitivity
Pins Definition and Description
SOT Pin №
SIP Pin №
Name
Type
upp
pu
ound
Function
1
2
3
1
3
2
V
DD
UT
GND
S
l
y
S
upp
Open Dr
Ground
l
y
V
o
l
ta
ge
pin
O
O
ut
t
ain Output pin
G
r
pin
Absolute Maximum Ratings
Parameter
Symbol
Value
Units
V
S
upp
l
l
y
y
V
o
l
t
a
g
e
28
V
DD
I
Supp
C
u
rr
e
n
t
50
28
m
A
DD
V
O
Output
Vo
l
t
a
g
e
V
UT
I
Output C
urr
e
n
t
50
m
A
O
UT
T
Storage Temperature Range
Absolute maximum ratings
Operating Temperature Range
-65 to 170
S
°
C
Symbol
Value
-40 to 85
-40 to 150
Units
T
Temperature
Temperature
S
u
u
ff
i
i
x
x
“
“
E”
A
°
°
C
C
T
S
ff
L
”
A
Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum- rated conditions for
extended periods may affect device reliability.
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SS5881
Unipolar Hall Switch-Low Sensitivity
General Electrical Specifications
DC Operating Parameters TA = 25℃, VDD= 3.5V to 24V (unless otherwise specified)
Typ
Parameter
Symbol
Test Conditions
ng
BRP
Min
3.5
Max
24
5
Units
V
DD
S
upp
l
l
y
y
V
o
l
t
a
g
e
O
p
e
r
a
ti
V
1.5
2.5
0.4
I
B <
I
Supp
C
u
rr
e
n
t
m
A
DD
V
D
= 20mA, B >
Output
Output
S
a
t
u
r
a
ti
on
Vo
lta
ge
0.5
10
V
S
on
OUT
B <
BOP
I
t
t
V
=
24V
Leakage Current
O
r
FF
BRP OUT
0.01
0.25
0.25
µA
Output R
Output
ise Time
R
R
= 1kΩ, C
=1kΩ, C
=
L
20pF
20pF
µ
s
s
L
L
F
a
ll
T
im
e
f
=
µ
L
Magnetic Specifications
DC Operating Parameters V
= 3.5V to 24V (unless otherwise specified)
DD
S5881
Test Conditions
Typ
Parameter
Symbol
BOP
Min
160
110
20
Max
220
200
50
Units
190
150
40
O
pe
r
a
ti
ng
P
o
i
n
t
G
G
G
Ta=25℃,Vdd=12V DC
R
e
lea
se
Po
in
t
BRP
BH
Hysteresis
Y
S
Application Information
Typical Three-Wire Application Circuit
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V2.00 May 1, 2012
SS5881
Unipolar Hall Switch-Low Sensitivity
Automotive and Harsh, Noisy Environments Three-Wire Circuit
Application Comments
For proper operation, a 100nF bypass capacitor should be placed as close as possible to the device between the VDD and ground pin.
For reverse voltage protection, it is recommended to connect a resistor or a diode in series with the VDD pin.
When using a resistor, three points are important:
- The resistor has to limit the reverse current to 50mA maximum (VCC / R1 ꢀꢀ50mA)
- The resulting device supply voltage VDD has to be higher than VDD min (VDD = VCC – R1.IDD)
- The resistor has to withstand the power dissipated in reverse voltage condition (PD = VCC2/ R1)
When using a diode, a reverse current cannot flow and the voltage drop is almost constant (ꢀ0.7V).
Therefore, a 100ꢀ/0.25W resistor for 5V application and a diode for higher supply voltage are recommended.
Both solutions provide the required reverse voltage protection.
When a weak power supply is used or when the device is intended to be used in noisy environment, it is recommended that figure 13.3
from the Application Information section is used.
The low-pass filter formed by R1 and C1 and the Zener diode Z1 bypass the disturbances or voltage spikes occurring on the device
supply voltage VDD. The diode D1 provides additional reverse voltage protection.
ESD Precautions
Electronic semiconductor products are sensitive to Electro Static Discharge (ESD).
Always observe Electro Static Discharge control procedures whenever handling semiconductor products.
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SS5881
Unipolar Hall Switch-Low Sensitivity
Package Information
Package UA, 3-Pin SIP:
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V2.00 May 1, 2012
SS5881
Unipolar Hall Switch-Low Sensitivity
Package SE, 3-Pin SOT-23:
Ordering Information
Part No.
Pb-free
YES
YES
YES
YES
YES
YES
Temperature Code
-40°C to 85°C
Package Code
SOT-23
TO-92
Packing
SS5881ESOT
SS5881EUA
SS5881KSOT
SS5881KUA
SS5881LSOT
SS5881LUA
7-in. reel, 3000 pieces/reel
Bulk, 1000 pieces/bag
7-in. reel, 3000 pieces/reel
Bulk, 1000 pieces/bag
7-in. reel, 3000 pieces/reel
Bulk, 1000 pieces/bag
-40°C to 85°C
-40°C to 125°C
-40°C to 125°C
-40°C to 150°C
-40°C to 150°C
SOT-23
TO-92
SOT-23
TO-92
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V2.00 May 1, 2012
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