Ratio-metric Linear Hall Effect Switch
TO-92S
Pin Definition:
1. V
CC
2. GND
3. Output
TSH481
Description
TSH481 is a linear Hall-effect sensor which is composed of Hall sensor, linear amplifier and Totem-Pole output
stage. It features low noise output, which makes it unnecessary to use external filtering. It also can provide
increased temperature stability and accuracy. The linear Hall sensor has a wide operating temperature range of -
o
o
40 C to +105 C, appropriate for commercial, consumer, and industrial environments.
The high sensitivity of Hall-effect sensor accurately tracks extremely weak changes in magnetic flux density. The
linear sourcing output voltage is set by the supply voltage and in proportion of variation of the magnetic flux
density. Typical operation current is 2.5mA and operating voltage range is 3.0V to 6.5V
Features
●
●
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Operating Voltage Range: 3.0V~6.5V
Low-Noise Operation
Linear output for circuit design flexibility
Totem-Pole for a stable and accurate output
Responds to either positive or negative magnetic
flux density
Robust ESD performance
Ordering Information
Part No.
TSH481CT B0G
Package
TO-92S
Packing
1kpcs / Bulk Bag
Note:
“G” denote for Halogen Free Product
Application
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●
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●
●
●
●
Current sensing
Motor control
Position sensing
Magnetic code reading
Rotary encoder
Ferrous metal detector
Vibration sensing
Liquid level sensing
Weight sensing
Absolute Maximum Ratings
(T
A
= 25
o
C unless otherwise noted)
Characteristics
Supply voltage
Reverse voltage
Magnetic flux density
Output current
Operating Temperature Range
Limit
V
CC
V
CC
I
OUT
T
OPR
Value
8
-0.5
Unlimited
10
-40 to +85
Unit
V
V
G
mA
o
o
C
-65 to +150
Storage temperature range
T
STG
C
o
150
Maximum Junction Temp
T
J
C
o
206
Thermal Resistance - Junction to Ambient
Rθ
JA
C/W
o
148
Thermal Resistance - Junction to Case
Rθ
JC
C/W
606
Package Power Dissipation
P
D
mW
Note:
Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute maximum-
rated conditions for extended periods may affect device reliability.
1/7
Version: A14
Ratio-metric Linear Hall Effect Switch
Block Diagram
TSH481
Typical Application Circuit
Electrical Specifications
(
DC Operating Parameters: T
A
=+25
o
C,V
CC
=5V)
Parameters
Supply Voltage
Supply Current
Output Current
Null Output Voltage
Output Bandwidth
Output Voltage Span
Magnetic Range Gauss
Linearity
Response Time
Sensitivity
Electro-Static Discharge
HBM
% of Span
Operating
B=0 G
V
CC
>3V
B=0 G
Test Conditions
Min
3.0
--
1.0
2.3
--
2.95
±500
--
--
1.8
3
Typ
--
2.5
1.5
2.5
20
3.2
±800
0.7
3
--
--
Max
6.5
5.0
--
2.7
--
--
--
--
--
2.2
--
Units
V
mA
mA
V
kHz
V
G
µs
mV/G
kV
Note:
1G (Gauss) = 0.1mT (millitesla)
2/7
Version: A14
Ratio-metric Linear Hall Effect Switch
Characteristic Performance
TSH481
Figure 1. Output Voltage vs. Flux Density
Figure 2. Output Voltage Offset vs. Temperature
Figure 3. Vout/Vcc Ratio vs. Supply Current
Figure 4. Linearity vs. Supply Voltage
Figure 5. Supply Current vs. Temperature
4/7
Figure 6. Supply Current vs. Supply Voltage
Version: A14
Ratio-metric Linear Hall Effect Switch
Characteristic Performance
TSH481
Figure 7. Sensitivity vs. Temperature
Figure 8. Sensitivity vs. Supply Voltage
Figure 8. Power Dissipation vs. Temperature
5/7
Version: A14
Analog electronics
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