Panasonic DN6851 Datasheet

■ Overview

The DN6851 is an integrated circuit making use of Hall
effects. It is designed particularly for operating at a low supply
voltage in alternative magnetic field. It is suitable for various
sensors and contactless switches.

■ Features

•

Wide range of supply ; 3.6 to 16V

•

Operating in alternative magnetic field.

•

TTL and MOS ICs directly drivable by output

•

Semipermanent service life because of no contact parts

•

Drivable with a small magnet

•

3-pin SIL plastic package (3-SIP)

■ Applications

•

Speed sensors

•

Position sensors

•

Rotation sensors

•

Keyboard switches

•

Microswitches

Note) This IC is not suitable for car electrical equipments.

DN6851

Hall IC (Operating Supply Voltage Range V

CC

=3.6 to 16V, Operating in Alternative

Magnetic Field)

Unit : mm

SSIP003-P-0000A (E-3S)

1 : V

CC

2 : GND
3 : Output

0.5±0.1

5˚

123

2˚

5˚

5˚

2˚

1.27

4.0±0.3

0.7

4.5±0.3

0.43

+0.1
– 0.05

2.0±0.3

0.8±0.1

1.0

10.5±0.5

■ Block Diagram

V

CC

I

CC

I

O

P

D

T

opr

T

stg

Supply voltage
Supply current
Circuit current
Power dissipation
Operating ambient temperature
Storage temperature

V
mA
mA

mW

˚C
˚C

Parameter Symbol Rating Unit

■ Absolute Maximum Ratings (Ta=25˚C)

18

8

20

100

–40 to +85

–55 to +125

Stabilized power supply

V

1

CC

27kΩ

Hall element Amp. Schmitt trigger Output stage

3

2

Output

GND

Parameter Symbol Condition min typ max

■ Electrical Characteristics (Ta=25˚C)

Operating flux density

B

1 (L to H)

mT

V

CC

=12V

B

2 (H to L)

mT

V

CC

=12V

Low output voltage V

OL

0.4 V

V

CC

=16V, IO=12mA,

B=30mT

V

V

CC

=3.6V, IO=12mA,

B=30mT

High output voltage V

OH

V

V

CC

=16V, IO=–30µA,

B=–30mT

V

V

CC

=3.6V, IO=–30µA,

B=–30mT

mA

V

CC

=16V, VO=0V,

B=–30mT

Note 1) Operating supply voltage range VCC (opr)= 3.6 to 16V
Note 2) For the operating flux density, ±20 gauss is also available as Rank A.

Output short-circuit current

–I

OS

mA

V

CC

=16V

I

CC

mA

Supply current

V

CC

=3.6V

6

5.5

0.4

30

0.9

–30

14.6

2.2

0.4

Unit

1.3

1.0

1.75

1.0

Unit : mm
The center of the Hall element is in the hatched area in the left figure.

■ Hall Element Position

Marking surface

1 : V

CC

2 : GND
3 : Output

Applied flux direction

N

S

1 2 3

Flux density (B)

Output voltage (V

O

)

B

1

B

2

■ Flux-Voltage Conversion Characteristics

■ Precaution on Use

1. Change of the operation magnetic flux density dose not depend on the supply voltage,
because the stabilization power supply is built-in.
(only for the range; V

CC

= 4.5 to 16V)

2. Change from “H” to “L” level increases the supply current by approx. 1mA.