Datasheet

Linear Hall Effect Sensor ICs with Analog Output
A1324, A1325,
and A1326
2
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Absolute Maximum Ratings
Characteristic Symbol Notes Rating Unit
Forward Supply Voltage V
CC
8V
Reverse Supply Voltage V
RCC
–0.1 V
Forward Output Voltage V
OUT
15 V
Reverse Output Voltage V
ROUT
–0.1 V
Output Source Current I
OUT(SOURCE)
VOUT to GND 2 mA
Output Sink Current I
OUT(SINK)
VCC to VOUT 10 mA
Operating Ambient Temperature T
A
L temperature range –40 to 150 ºC
Maximum Junction Temperature T
J
(max) 165 ºC
Storage Temperature T
stg
–65 to 170 ºC
Terminal List Table
Name
Number
Function
LH UA
VCC 1 1
Input power supply; tie to GND with
bypass capacitor
VOUT 2 3
Output signal; also used for
programming
GND 3 2 Ground
Selection Guide
Part Number Packing
1
Package
Sensitivity (Typ.)
(mV/G)
A1324LLHLX-T 10 000 pieces per reel 3-pin SOT-23W surface mount
5.000
A1324LUA-T
2
500 pieces per bag 3-pin ultramini SIP through hole mount
A1325LLHLX-T 10 000 pieces per reel 3-pin SOT-23W surface mount
3.125
A1325LUA-T
2
500 pieces per bag 3-pin ultramini SIP through hole mount
A1326LLHLX-T 10 000 pieces per reel 3-pin SOT-23W surface mount
2.500
A1326LUA-T
2
500 pieces per bag 3-pin ultramini SIP through hole mount
1
Contact Allegro
®
for additional packing options.
2
Contact factory for availability.
Thermal Characteristics may require derating at maximum conditions, see application information
Characteristic Symbol Test Conditions* Value Unit
Package Thermal Resistance
R
θJA
Package LH, on 4-layer PCB with copper limited to solder pads 228 ºC/W
Package LH, on 2-layer PCB with 0.463 in.
2
of copper area each
side, connected by thermal vias
110 ºC/W
Package UA, on 1-layer PCB with copper limited to solder pads 165 ºC/W
*Additional thermal information available on the Allegro website
231
21
3
Pin-out Diagrams
LH Package UA Package