A1157LUA-T Allegro Microsystems Inc, A1157LUA-T Datasheet - Page 4

• Manufacturer Part Number: A1157LUA-T
• Description: IC SW HALL EFFECT CHOPPER 3SIP
• Manufacturer: Allegro Microsystems Inc
• Series: -r
• Type: Unipolar Switchr

Specifications of A1157LUA-T

• Sensing Range: 80G Trip, 10G Release
• Voltage - Supply: 3 V ~ 24 V
• Current - Supply: 5mA
• Current - Output (max): -
• Output Type: 2-Wire Serial
• Features: -
• Operating Temperature: 40°C ~ 150°C
• Package / Case: *
• Magnetic Type: Unipolar
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (typ): 3.3/5/9/12/15/18V
• Operating Supply Voltage (max): 24V
• Mag Sensor Operate Point (g): 80Gs
• Mag Sensor Release Point (g): 10Gs
• Mag Sensor Hysteresis(g): 30Gs
• Package Type: 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
• Other names: 620-1409

A1150, A1152, A1153, A1155,
Thermal Characteristics
Package Thermal Resistance
*Additional thermal information available on the Allegro website
A1156, A1157, and A1158
Characteristic
may require derating at maximum conditions, see application information
Symbol
1900
1800
1700
1600
1500
1400
1300
1200
1100
1000
R
900
800
700
600
500
400
300
200
100
θJA
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
0
9
8
7
6
5
4
3
2
20
20
Power Dissipation versus Ambient Temperature
Package LH, on 1-layer PCB with copper limited to solder pads
Package LH, on 2-layer PCB with 0.463 in.
Package UA, on 1-layer PCB with copper limited to solder pads
40
40
2-layer PCB, Package LH
(R
1-layer PCB, Package UA
(R
1-layer PCB, Package LH
(R
θJA
θJA
θJA
60
= 110 ºC/W)
= 165 ºC/W)
= 228 ºC/W)
60
Power Derating Curve
80
Temperature (ºC)
Temperature (°C)
80
100
100
120
Test Conditions*
Chopper-Stabilized, Two Wire
120
140
140
160
2
160
of copper area each side
Hall-Effect Switches
180
180
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
V
V
CC(min)
CC(max)
Value
228
110
165
ºC/W
ºC/W
ºC/W
Unit
4