A1421LK-T Allegro Microsystems Inc, A1421LK-T Datasheet - Page 3

• Manufacturer Part Number: A1421LK-T
• Description: IC,HALL-EFFECT SENSOR,SINGLE-ENDED,SIP,4PIN,PLASTIC
• Manufacturer: Allegro Microsystems Inc
• Type: Special Purposer

Specifications of A1421LK-T

• Rohs Compliant: YES
• Sensing Range: 27.5G Trip, -12.5G Release
• Voltage - Supply: 4 V ~ 26.5 V
• Current - Supply: 7mA
• Current - Output (max): 25mA
• Output Type: Digital, Open Collector
• Features: High Precision
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 4-SIP
• Magnetic Type: Monolithic
• Operating Supply Voltage (min): 4V
• Operating Supply Voltage (typ): 12V
• Operating Supply Voltage (max): 26.5V
• Output Current: 25mA
• Mag Sensor Operate Point (g): 27.5Gs
• Mag Sensor Release Point (g): -12.5Gs
• Mag Sensor Hysteresis(g): 15Gs
• Package Type: SIP
• Pin Count: 4
• Mounting: Through Hole
• Operating Temp Range: -40C to 150C
• Operating Temperature Classification: Automotive
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

A1421, A1422,
and
further from the zero-crossing. The output polarities are shown
in the Product Selection Guide table.
This variety of options provides flexibility for achieving solu-
tions for a wide range of applications, including automotive
transmission and crankshaft speed sensing.
Description (continued)
Continued on next page.
OPERATING CHARACTERISTICS
operating range, unless otherwise noted. Typical operating parameters: V
ELECTRICAL CHARACTERISTICS
Supply Voltage
Supply Current
Output Saturation Voltage
Output Leakage Current
PROTECTION COMPONENT CHARACTERISTICS
Reverse Supply Current
Supply Zener Current
Supply Zener Clamp Voltage
Output Zener Current
Output Zener Clamp Voltage
Output Short Circuit Current Limit
RESPONSE CHARACTERISTICS
Power-On State
Power-On Time
Settling Time
Response Time
Upper Corner Frequency
Lower Corner Frequency
OUTPUT CHARACTERISTICS
Output Rise Time
Output Fall Time
A1423
Characteristic
3,6
2,6
6
4
1
V
I
t
Symbol
High Precision Hall Effect AC-Coupled Differential
Valid at T
V
V
OUTS(lim)
I
I
Response
OUT(SAT)
t
ZSupply
ZOutput
Settling
ZSupply
ZOutput
POS
I
I
V
I
t
f
RCC
OFF
f
CC
PO
CU
CL
t
t
CC
r
f
A
Operating; T
I
V
V
V
I
V
I
t < t
V
f
Equal to t
–3 dB, single pole
–3 dB, single pole
R
R
SINK
CC
OUT
Bdiff
= – 40
OUT
CC
S
OUT
CC
PU
PU
= 28 V
= 10 mA, T
Response
= –18 V
> V
≥ 100 Hz
= 1 kΩ, C
= 1 kΩ, I
= 3 mA, T
= 20 mA
= 24 V, B
= 28 V
º
Sensor IC with Integrated Filter Capacitor
C to 150
CC(min)
PO
J
+ t
SINK
< T
OUTC2
A
A
diff
Settling
Test Conditions
º
= 25°C
= 25°C
C, T
J(max)
= 0
= 20 mA, C
The device package has an operating ambient temperature range
–40°C to 150°C , and is provided in a 4-pin plastic SIP. Each
package is available in a lead (Pb) free version (suffix, –T) , with
a 100% matte tin plated leadframe.
= 10 pF
J
; f
≤ 165°C; over operational air gap range and V
Bdiff
CC
= 12 V and T
≥ 100 Hz
OUTC2
= 10 pF
A
= 25°C.
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Min.
4.0
4.5
20
28
28
–
–
–
–
–
–
–
–
–
0
–
–
–
Typ.
High
140
4.2
4.5
12
33
–
–
–
–
–
–
–
–
–
–
–
–
Max.
CC
26.5
400
200
200
7.0
–1
10
37
50
50
59
20
5
3
–
–
9
–
within
Units
kHz
mA
mV
mA
mA
mA
mA
ms
ms
ms
μA
Hz
ns
ns
V
V
V
V
3