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A3515 Schematic ( PDF Datasheet ) - Allegro MicroSystems

Teilenummer A3515
Beschreibung RATIOMETRIC/ LINEAR HALL-EFFECT SENSORS FOR HIGH-TEMPERATURE OPERATION
Hersteller Allegro MicroSystems
Logo Allegro MicroSystems Logo 




Gesamt 12 Seiten
A3515 Datasheet, Funktion
3515 AND
3516
RATIOMETRIC, LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMPERATURE OPERATION
V
CC
The A3515– and A3516– 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 approximately 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
A3515– features an output sensitivity of 5 mV/G, while the A3516– has an
output sensitivity of 2.5 mV/G. See the Magnetic 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 recover-
ability 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.
These devices are supplied in a 3-pin ultra-mini-SIP ‘UA’ package.
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 ‘E–’ ..................... -40°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.
FEATURES
I Temperature-Stable Quiescent Output Voltage
I Precise Recoverability After Temperature Cycling
I Output Voltage Proportional to Applied Magnetic Field
I Ratiometric Rail-to-Rail Output
I Improved Sensitivity
I 4.5 V to 5.5 V Operation
I Immune to Mechanical Stress
I Small Package Size
I Solid-State Reliability
Always order by complete part number, e.g., A3515LUA .






A3515 Datasheet, Funktion
3515 AND 3516
RATIOMETRIC,
LINEAR
HALL-EFFECT SENSORS
TYPICAL CHARACTERISTICS
9.0
Vcc = 5.5 V
8.0
7.0
6.0
-50 -25
0 25 50 75 100
AMBIENT TEMPERATURE IN °C
125 150
Dwg. GH-039-2
1.4
1.2 Vcc = 5 V
IO = -1 mA
1.0 IO = 1 mA
IO = 5 mA
0.8 IO = 10 mA
0.6
0.4
-50
-25
0 25 50 75 100
AMBIENT TEMPERATURE IN °C
125 150
Dwg. GH-060-1
2.55
2.54
2.53
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
-50
-25
A3515–
A3516–
Vcc = 5 V
Io = -1 mA
0 25 50 75 100
AMBIENT TEMPERATURE IN °C
125 150
Dwg. GH-067
6.0
A3515
5.0
4.0
3.0
A3516
2.0
Vcc = 5 V
1.0 Io = -1 mA
0
-50
-25
0 25 50 75 100
AMBIENT TEMPERATURE IN °C
125 150
Dwg. GH-066
115 Northeast Cutoff, Box 15036
6 Worcester, Massachusetts 01615-0036 (508) 853-5000

6 Page









A3515 pdf, datenblatt
3515 AND 3516
RATIOMETRIC,
LINEAR
HALL-EFFECT SENSORS
HALL-EFFECT SENSORS
Partial Part
Number
Avail. Oper.
Characteristics at TA = +25°C
Temp.
BOP max BRP min Bhys typ
Features
RATIOMETRIC, LINEAR HALL-EFFECT SENSORS
3503
3507
3508
3515
3516
3517
3518
3060
3422
3059
3056
3058
3421
S typ. 1.3 mV/G
E/L typ. 2.5 mV/G
S typ. 2.5 mV/G
E/L
typ. 5.0 mV/G
chopper stabilized
E/L
typ. 2.5 mV/G
chopper stabilized
L/S
typ. 5.0 mV/G
chopper stabilized
L/S
typ. 2.5 mV/G
chopper stabilized
GEARTOOTH/RING MAGNET (DUAL ELEMENT) HALL-EFFECT SENSORS in order of BOP
K/S
+35 -35
30 ac coupled
E/L
+75 -75
46 direction detection
K/S
+100
-100
130 ac coupled
E/L
+150
-150
50
zero-speed
E/L
+250
-250
200
zero-speed
E/L
+280
-280
335
direction detection
SPECIAL-PURPOSE HALL-EFFECT SENSORS
3054
3209
3210
3421
3422
3425
K/S
E
E
E/L
E/L
L
+300
±60
±60
+280
+85
+24
+5.0
±5.0
±5.0
-280
-85
-24
50 unipolar switch, multiplexed
7.7 400 µW, chopper stabilized
7.7 25 µW, chopper stabilized
335 direction detection
46 direction detection
19 dual, chopper stabilized
Operating Temperature Ranges:
S = -20°C to +85°C, E = -40°C to +85°C, J = -40°C to +115°C, K = -40°C to +125°C, L = -40°C to +150°C
Notes 1. Protected.
4. Multiplexed two-wire sensor; after proper address, power/signal bus current indicates magnetic field condition.
Notes
4
1
115 Northeast Cutoff, Box 15036
12 Worcester, Massachusetts 01615-0036 (508) 853-5000

12 Page





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