A3251LUA-T Allegro Microsystems Inc, A3251LUA-T Datasheet - Page 3

• Manufacturer Part Number: A3251LUA-T
• Description: IC SW HALL EFFECT UNI 3-SIP
• Manufacturer: Allegro Microsystems Inc
• Type: Unipolar Switchr

Specifications of A3251LUA-T

• Sensing Range: 50G
• Voltage - Supply: 4.2 V ~ 24 V
• Current - Supply: 10mA
• Current - Output (max): 20mA
• Output Type: Digital, Open Collector
• Features: Regulated Voltage
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 3-SIP
• Magnetic Type: Unipolar
• Operating Supply Voltage (min): 4.2V
• Operating Supply Voltage (typ): 5/9/12/15/18V
• Operating Supply Voltage (max): 24V
• Output Current: 20mA
• Mag Sensor Operate Point (g): 50Gs
• Mag Sensor Hysteresis(g): 13Gs
• Package Type: Ultra Mini SIP
• Pin Count: 3
• Mounting: Through Hole
• Operating Temp Range: -40C to 150C
• Operating Temperature Classification: Automotive
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

A3250
A3251
Description (continued)
The other differences in the devices are the power-on state. The
A3250 powers-on in the HIGH state, while the A3251 powers-on
in the LOW state.
Three package styles provide a magnetically optimized package
Selection Guide
Absolute Maximum Ratings
A3250LLTTR-T
1
2
Supply Voltage
Reverse Supply Voltage
Zener Overvoltage
Output Current
Magnetic Flux Density
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
Contact Allegro for additional packing options.
In south polarity magnetic field of sufficient strength.
Part Number
1
2
UA
Pin-out Diagrams
3
Characteristic
and
1
LT
7-in. reel, 1000 pieces/reel
2
Packing
3
Terminal List
Symbol
T
1
V
J
V
I
(max)
Number
T
OUT
V
T
RCC
B
CC
stg
A
Z
1
2
3
Field-Programmable, Chopper-Stabilized,
Range E
Range L
Name
VOUT
VCC
GND
Surface mount
Package
Connects power supply to chip
Ground
Device output
for most applications. Type LT is a miniature SOT89/TO-243AA
surface mount package that is thermally enhanced with an
exposed ground tab, and type UA is a three-lead ultramini SIP
for through-hole mounting. The packages are lead (Pb) free, with
100% matte tin plated leadframes (suffix, –T).
Notes
Unipolar Hall-Effect Switches
–40 to 150
(ºC)
T
Function
A
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
Power-On
–40 to 150
–65 to 170
Unlimited
–40 to 85
High
Rating
26.5
–18
165
30
20
V
OUT
Running
Low
Units
mA
ºC
ºC
ºC
ºC
G
V
V
V
2
2