ATS645 Allegro MicroSystems, Inc., ATS645 Datasheet - Page 7

• Manufacturer Part Number: ATS645
• Description: Ats645lsh True Zero Speed Miniature Gear-tooth Sensors
• Manufacturer: Allegro MicroSystems, Inc.

ATS645LSH
THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information
*Additional information is available on the Allegro Web site.
Package Thermal Resistance
CHARACTERISTIC
1900
1800
1700
1600
1500
1400
1300
1200
1100
1000
Symbol
900
800
700
600
500
400
300
200
100
True Zero Speed Miniature Differential Peak-
R
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
θJA
20
T
40
40
J(max)
Single-layer PCB with copper limited to solder pads
Two-layer PCB with 3.8 in.
nected with thermal vias and to device ground pin
Maximum Power Dissipation, P
T
J(max)
60
= 165ºC; V
60
(R
Power Derating Curve
(R
θJA
θJA
= 165ºC; I
80
= 84 ºC/W)
= 126 ºC/W)
Temperature (°C)
Temperature (ºC)
80
CC
100
= V
100
CC
CC(max)
TEST CONDITIONS*
= I
120
120
Detecting Gear Tooth Sensor
CC(max)
; I
2
CC
of copper area on each side con-
140
140
= I
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)
Value
126
84
Units
ºC/W
ºC/W
7