A1141 ALLEGRO [Allegro MicroSystems], A1141 Datasheet - Page 6

• Manufacturer Part Number: A1141
• Description: Sensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches
• Manufacturer: ALLEGRO [Allegro MicroSystems]

A1140, A1141,
A1142, and A1143
THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information
Package Thermal Resistance
*Additional thermal information available on Allegro Web site.
Characteristic
Symbol
1900
1800
1700
1600
1500
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
R
10
9
8
7
6
5
4
3
2
0
θJA
20
20
Power Dissipation versus Ambient Temperature
40
40
2-layer PCB, Package LH
(R
1-layer PCB, Package UA
1-layer PCB, Package LH
(R
(R
Package LH, 1-layer PCB with copper limited to solder pads
Package LH, 2-layer PCB with 0.463 in.
connected by thermal vias
Package UA, 1-layer PCB with copper limited to solder pads
θJA
θJA
θJA
60
= 110 ºC/W)
= 165 ºC/W)
= 228 ºC/W)
Sensitive Two-Wire Chopper-Stabilized
60
Power Derating Curve
80
Temperature (ºC)
Temperature (°C)
80
100
100
120
Unipolar Hall Effect Switches
120
Test Conditions*
140
140
160
160
2
of copper area each side
180
180
V
115 Northeast Cutoff, Box 15036
V
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
CC(min)
CC(max)
Value Units
228
165
110
ºC/W
ºC/W
ºC/W
6