A1301 ALLEGRO [Allegro MicroSystems], A1301 Datasheet

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A1301

Manufacturer Part Number
A1301
Description
Continuous-Time Ratiometric Linear Hall Effect Sensors
Manufacturer
ALLEGRO [Allegro MicroSystems]
Datasheet

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A1301
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ALLEGRO
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A1301-DS, Rev. 2
Supply Voltage, V
Output Voltage, V
Reverse-Supply Voltage, V
Reverse-Output Voltage, V
Output Sink Current, I
Operating Temperature
Storage Temperature, T
Ambient, T
Ambient, T
Maximum Junction, T
AB SO LUTE MAX I MUM RAT INGS
1. VCC
2. GND
3. VOUT
1. VCC
2. VOUT
3. GND
Package LH, 3-pin Surface Mount
Package UA, 3-pin SIP
A
A
, Range E.................. –40ºC to 85ºC
, Range K ............... –40ºC to 125ºC
OUT
CC
............................................ 8 V
1
OUT
.......................................... 8 V
S
Continuous-Time Ratiometric Linear Hall Effect Sensors
1
2
.................. –65ºC to 170ºC
J(max)
............................. 10 mA
ROUT
RCC
3
2
....................... –0.1 V
........................165ºC
..................... –0.1 V
3
A1301 and A1302
Features and Benefits
The A1301 and A1302 are continuous-time, ratiometric, linear Hall-effect sensors.
They are optimized to accurately provide a voltage output that is proportional to
an applied magnetic field. These devices have a quiescent output voltage that is
50% of the supply voltage. Two output sensitivity options are provided: 2.5 mV/G
typical for the A1301, and 1.3 mV/G typical for the A1302.
The Hall-effect integrated circuit included in each device includes a Hall sensing
element, a linear amplifier, and a CMOS Class A output structure. Integrating the
Hall sensing element and the amplifier on a single chip minimizes many of the
problems normally associated with low voltage level analog signals.
High precision in output levels is obtained by internal gain and offset trim adjust-
ments made at end-of-line during the manufacturing process.
These features make the A1301 and A1302 ideal for use in position sensing
systems, for both linear target motion and rotational target motion. They are well-
suited for industrial applications over extended temperature ranges, from –40°C to
125°C.
Two device package types are available: LH, a 3-pin SOT23W type for surface
mount, and UA, a 3-pin ultramini SIP for through-hole mount. Each package is
available in a lead (Pb) free version (suffix, –T) with 100% matte tin plated lead-
frame.
Low-noise output
Fast power-on time
Ratiometric rail-to-rail output
4.5 to 6.0 V operation
Solid-state reliability
Factory-programmed at end-of-line for optimum performance
Robust ESD performance
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com

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A1301 Summary of contents

Page 1

... High precision in output levels is obtained by internal gain and offset trim adjust- ments made at end-of-line during the manufacturing process. These features make the A1301 and A1302 ideal for use in position sensing systems, for both linear target motion and rotational target motion. They are well- suited for industrial applications over extended temperature ranges, from – ...

Page 2

... VCC C BYPASS Terminal List Symbol VCC Connects power supply to chip VOUT Output from circuit GND Ground A1301-DS, Rev. 2 A1301 and A1302 Product Selection Guide Packing* Package Surface Mount Bulk, 500 pieces/bag SIP Surface Mount Bulk, 500 pieces/bag SIP Surface Mount Bulk, 500 pieces/bag ...

Page 3

... Quiescent Output Voltage over V Operating Temperature Range Magnetic Sensitivity Magnetic Sensitivity over Operating Temperature Range 1 Refer to equation (4) in Ratiometric section on page 4. 2 Refer to equation (5) in Ratiometric section on page 4. A1301-DS, Rev. 2 A1301 and A1302 , and Symbol Test Conditions V Running, T < 165°C ...

Page 4

... A1301-DS, Rev. 2 A1301 and A1302 Characteristic Definitions Ratiometric. The A1301 and A1302 feature a ratiometric , equals one output. This means that the quiescent voltage output, V OUTQ and the magnetic sensitivity, Sens, are proportional to the supply voltage Due to internal ...

Page 5

... Ambient Temperature OUTQ 2.60 2.55 2.50 2.45 2.40 –50 – Temperature (°C) 1301 Device Sensitivity vs. Supply Voltage 3.5 3.0 2.5 2.0 1.5 4.5 5.0 Supply Voltage (V) Continued on the next page... A1301-DS, Rev. 2 A1301 and A1302 Typical Characteristics (30 pieces, 3 fabrication lots) 75 100 125 150 2.60 2.55 2.50 2.45 2.40 75 100 125 150 5.5 6.0 1302 Device Sensitivity vs. Temperature 1.40 1.38 UA Package 1.36 1.34 1.32 1.30 LH Package 1 ...

Page 6

... LIN+ 99.9 99.8 4.5 5.0 Supply Voltage (V) 1301 Device Symmetry vs. Supply Voltage 100.0 99.9 99.8 99.7 99.6 99.5 99.4 99.3 99.2 99.1 99.0 4.5 5.0 Supply Voltage (V) A1301-DS, Rev. 2 A1301 and A1302 Typical Characteristics, continued (30 pieces, 3 fabrication lots) vs. Supply Voltage 5.5 6.0 5.5 6.0 5.5 6.0 1302 Device V vs. Supply Voltage OUTQ 3.5 3.0 2.5 2.0 1.5 4.5 5.0 5.5 Supply Voltage (V) 1302 Device LIN+ and LIN– vs. Supply Voltage 100 ...

Page 7

... Continuous-Time Ratiometric Linear Hall Effect Sensors 3.10 .122 2.90 .114 3 0.96 .038 NOM 2.10 .083 1.85 .073 3.00 .118 2.70 .106 1 0.50 .020 0.30 .012 0.55 .022 REF .122 3.10 .117 2.97 A1301-DS, Rev. 2 A1301 and A1302 Package LH, 3-Pin; (SOT-23W) 1.49 .059 8º NOM 0º 0.28 .011 0.20 NOM 0.13 A 0.25 MIN 2 0.25 .010 BSC Seating Plane Gauge Plane 1.13 .045 0.87 .034 0.15 .006 0.95 .037 ...

Page 8

... Continuous-Time Ratiometric Linear Hall Effect Sensors A1301-DS, Rev. 2 A1301 and A1302 The products described herein are manufactured under one or more of the following U.S. patents: 5,045,920; 5,264,783; 5,442,283; 5,389,889; 5,581,179; 5,517,112; 5,619,137; 5,621,319; 5,650,719; 5,686,894; 5,694,038; 5,729,130; 5,917,320; and other patents pending. Allegro MicroSystems, Inc. reserves the right to make, from time to ...

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