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3518 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 3518
기능 Ratiometric / Linear Hall-effect Sensors For High-temperature Operation
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3518 데이터시트, 핀배열, 회로
3517 AND
3518
RATIOMETRIC, LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMPERATURE OPERATION
The A3517xUA and A3518xUA are sensitive, temperature-stable linear
Hall-effect sensors with greatly improved offset characteristics. Ratiometric,
linear Hall-effect sensors provide a voltage output that is proportional to the
applied magnetic field and have a quiescent output voltage that is approxi-
mately 50% of the supply voltage. These magnetic sensors are ideal for use in
linear and rotary position sensing systems in the harsh environments of
automotive and industrial applications over extended temperatures to -40°C
and +150°C. The A3517xUA features an output sensitivity of 5 mV/G while
the A3518xUA has an output sensitivity of 2.5 mV/G. See the Magnetic
V
CC
Characteristics table for complete, individual device parametrics.
12
3
Each BiCMOS monolithic circuit integrates a Hall element, improved
temperature-compensating circuitry to reduce the intrinsic sensitivity drift of
the Hall element, a small-signal high-gain amplifier, and a rail-to-rail low-
impedance output stage.
Dwg. PH-006
Pinning is shown viewed from branded side.
A proprietary dynamic offset cancelation technique, with an internal high-
frequency clock, reduces the residual offset voltage, which is normally caused
by device overmolding, temperature dependancies, and thermal stress. This
technique produces devices that have an extremely stable quiescent output
voltage, are immune to mechanical stress, and have precise recoverability after
temperature cycling. Many problems normally associated with low-level
analog signals are minimized by having the Hall element and amplifier in a
single chip. Output precision is obtained by internal gain and offset trim
adjustments during the manufacturing process.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VCC ......................... 8.0 V
Output Voltage, VO ........................... 8.0 V
Output Sink Current, IO .................. 10 mA
Magnetic Flux Density, B ......... Unlimited
Package Power Dissipation,
PD .................................... See Graph
Operating Temperature Range*, TA
Suffix S– .................... -20°C to +85°C
Suffix L– .................... -40°C to +150°C
Storage Temperature Range,
TS ............................. -65°C to +170°C
* Infrequent excursions permitted; see
Applications Information.
These reduced-cost devices are supplied in a 3-pin ultra-mini-SIP “UA”
package only.
FEATURES
s Temperature-Stable Quiescent Output Voltage
s Precise Recoverability After Temperature Cycling
s Output Voltage Proportional to Applied Magnetic Field
s Ratiometric Rail-to-Rail Output
s Improved Sensitivity
s 4.5 V to 5.5 V Operation
s Immune to Mechanical Stress
s Small Package Size
s Solid-State Reliability
Always order by complete part number, e.g., A3517SUA .




3518 pdf, 반도체, 판매, 대치품
3517 AND 3518
RATIOMETRIC,
LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMP. OPERATION
MAGNETIC CHARACTERISTICS over operating temperature range, at VCC = 5 V, IO = -1 mA
(unless otherwise noted).
Characteristic*
Operating Temp. Range, T A
Sensitivity at TA = 25°C
Sens(T) at TA = Max.
Sens(T) at TA = Min.
VOQ(T)
Ratiometry, VOQ(V)
Ratiometry, Sens(V)
Positive Linearity, Lin+
Negative Linearity, Lin
Symmetry
A3517SUA
Min. Typ. Max.
-20 +85
4.0 5.0 6.0
-5.0 2.5 10
-9.0 -1.3 6.0
– – ±20
100
100
100
100
100
Part Numbers
A3517LUA
A3518SUA
Min. Typ. Max. Min. Typ. Max.
-40 +150 -20 +85
4.0 5.0 6.0 2.0 2.5 3.0
-5.0 2.5 10 -5.0 2.5 10
-9.0 -1.3 6.0 -9.0 -1.3 6.0
– – ±20 – – ±20
100
100
100
100
100
100
100
100
100
100
A3518LUA
Min. Typ. Max. Units
-40 +150 °C
2.0 2.5 3.0 mV/G
-5.0 2.5 10
%
-9.0 -1.3 6.0 %
– – ±20 G
100
%
100
%
100
%
100
%
100
%
NOTE 1 Magnetic flux density is measured at most sensitive area of device located 0.018" (0.46 mm) below the
branded face of the package.
NOTE 2 10 G = 1 mT, exactly.
NOTE 3 Except for Sens(T), typical data is at TA = 25°C and is for design information only.
* See Characteristics Definitions for test conditions.
This calculation (formula 1, next page) yields the devices equivalent accuracy, over the operating temperature range, in
gauss.
115 Northeast Cutoff, Box 15036
4 Worcester, Massachusetts 01615-0036 (508) 853-5000

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3518 전자부품, 판매, 대치품
3517 AND 3518
RATIOMETRIC,
LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMP. OPERATION
CRITERIA FOR DEVICE QUALIFICATION
All Allegro sensors are subjected to stringent qualification requirements prior to being released to production.
To become qualified, except for the destructive ESD tests, no failures are permitted.
Qualification Test
Temperature Humidity
Bias Life
Bias Life
(Surge Operating Life)
Autoclave, Unbiased
High-Temperature
(Bake) Storage Life
Temperature Cycle
ESD,
Human Body Model
Test Method and Test Conditions
JESD22-A101
T
A
=
85°C,
RH
=
85%
JESD22-A108
T
A
=
150°C,
T
J
=
165°C
JESD22-A108
TA = 175°C, TJ = 190°C
JESD22-A102
TA = 121°C, 15 psig
JESD22-A103
T
A
=
170°C
JESD22-A104
CDF-AEC-Q100-002
Test Length
1000 hrs
1000 hrs
168 hrs
96 hrs
1000 hrs
1000 cycles
Pre/Post
Reading
Samples
77
77
77
77
77
77
3 per
test
Comments
Device biased for
minimum power
Test to failure
All leads > 3 kV
www.allegromicro.com
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