A1425LK Allegro Microsystems Inc, A1425LK Datasheet - Page 2

• Manufacturer Part Number: A1425LK
• Description: IC SENSOR HALL EFFECT AC 4-SIP
• Manufacturer: Allegro Microsystems Inc
• Type: Special Purposer

Specifications of A1425LK

• Sensing Range: 11G Trip, -11G Release
• Voltage - Supply: 4 V ~ 26.5 V
• Current - Supply: 7mA
• Current - Output (max): 25mA
• Output Type: Digital, Open Collector
• Features: High Accuracy
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 4-SIP
• Magnetic Type: Monolithic
• Operating Supply Voltage (min): 4V
• Operating Supply Voltage (typ): 5/9/12/15/18/24V
• Operating Supply Voltage (max): 26.5V
• Output Current: 25mA
• Package Type: SIP
• Pin Count: 4
• Mounting: Through Hole
• Operating Temp Range: -40C to 150C
• Operating Temperature Classification: Automotive
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

A1425
Description (continued)
The device utilizes advanced temperature compensation for the
high-pass fi lter, sensitivity, and Schmitt trigger switchpoints,
to guarantee optimal operation to low frequencies over a wide
range of air gaps and temperatures.
Each Hall effect digital integrated circuit includes a voltage
regulator, two Hall effect elements, temperature compensating
circuitry, a low-level amplifi er, band-pass fi lter, Schmitt trigger,
Selection Guide
Absolute Maximum Ratings
*
Supply Voltage
Reverse Supply Voltage
Continuous Output Current
Continuous Reverse-Output Current
Operating Ambient Temperature
Maximum Junction
Storage Temperature
Contact Allegro for additional packing options.
Pin-out Diagram
Part Number
1
A1425LK-T
Characteristic
2
3
4
Bulk, 500 pieces/bag
High Accuracy Analog Speed Sensor IC with Integrated
Filter Capacitor and Dual Zero-Crossing Output Signal
Terminal List Table
VOUT
Name
TEST
GND
Symbol
VCC
Packing
T
I
V
V
I
ROUT
J(max)
T
OUT
T
RCC
CC
stg
A
*
Refer to Power Derating section
Range L
Number
1
2
3
4
B
RP(MIN)
–11
and an output driver, which requires a pull-up resistor. The on-
board regulator permits operation with supply voltages from 4.0
to 26.5 V. The output stage can easily switch 20 mA over the full
frequency response range of the device, and is compatible with
both TTL and CMOS logic circuits.
The device is packaged in a 4-pin plastic SIP. It is lead (Pb) free,
with 100% matte tin plated leadframe.
(G)
Notes
Switchpoints
B
OP(MAX)
(G)
11
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
–40 to 150
–65 to 170
Rating
–18
–50
165
28
25
Units
mA
mA
ºC
ºC
ºC
V
V
2