ats643 Allegro MicroSystems, Inc., ats643 Datasheet - Page 8

• Manufacturer Part Number: ats643
• Description: Ats643lsh Self-calibrating Zero-speed Differential Gear Tooth Sensors With Continuous Update
• Manufacturer: Allegro MicroSystems, Inc.

ATS643LSH
THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information
Package Thermal Resistance
Characteristic
1900
1800
1700
1600
1500
1400
1300
1200
1100
1000
Symbol
900
800
700
600
500
400
300
200
100
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
0
R
9
8
7
6
5
4
3
2
20
θJA
20
Gear Tooth Sensor with Continuous Update
T
40
40
J(max)
Self-Calibrating, Zero-Speed Differential
Minimum-K PCB (single-sided with copper limited to
solder pads)
Low-K PCB (single-sided with copper limited to solder
pads and 3.57 in.
Maximum Power Dissipation, P
T
J(max)
60
= 165ºC; V
60
Low-K PCB
Power Derating Curve
(R
Minimum-K PCB
(R
θJA
θJA
= 165ºC; I
80
= 84 ºC/W)
= 126 ºC/W)
Temperature (°C)
80
CC
100
= V
100
2
CC
Test Conditions
(23.03 cm
CC(max)
= I
120
120
CC(max)
; I
CC
140
140
2
= I
) of copper area)
D(max)
CC(max)
160
160
180
180
V
V
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
CC(max)
CC(min)
Min.
126
84
Typ.
–
–
Max Units
–
–
ºC/W
ºC/W
8