MLX902xx Name of Sensor

Rev Y.X

22/Aug/98

Page 3

US79 Series

CMOS Power Hall IC

US79 CMOS Power Hall IC

Rev 3.0

23/Jan/01

Page 3

Melexis Inc. reserves the right to make changes without further

notice to any products herein to improve reliability, function or

design. Melexis does not assume any liability arising from the use

of any product or application of any product or circuit described

herein.

US79KA Applications Schematic

US79

Motor

Coil

Motor

Coil

Output 1

Output 2

5V,12V

Supply

US79KA Applications

Schematic for Currents

Greater Than 500mA

US79

VDD

500

Ω

500

Ω

P-Channel FET

P-Channel FET

+12V, +24V

All Dimensions in millimeters

2.13

1.87

0.45

0.41

Marked

Surface

1.53

1.27

US79 Hall Plate / Chip Location

* MARKING:

Line 1:

1st digit (U)

= Supplier (Melexis)

2nd and 3rd digits (79)

= Series (79xx)

Line 2:

1st digit (9)

= Year (1999)

2nd and 3rd digits(05)

= Week of Year

PINOUT:

Pin 1

Output 1

Pin 2

GND

Pin 3

Output 2

U79

905

1

2

3

*

Absolute Maximum Ratings

18V

500mA

-40 to 125°C

-55 to 165°C

150°C

ESD Sensitivity

+/- 7KV