True Zero-Speed High-Accuracy

Gear Tooth Sensor IC

ATS668LSM

7

Allegro MicroSystems, LLC

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

POWER DERATING

Characteristic

Symbol

Test Conditions*

Value

Unit

Package Thermal Resistance

Single layer PCB, with copper limited to solder pads

147

°C/W

*Additional thermal information available on the Allegro website

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

20

40

60

80 100120 140160 180

Temperature (°C)

Power Derating Curve

1-layer PCB, Package SM

0

100

200

300

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

20

40

60

80

100120 140160 180

Temperature (°C)

Power Dissipation versus Ambient Temperature

1-layer PCB, Package SM