Hall ICs

1

Publication date: November 2002

SPC00008CJB

DN8797MS

3 V operation Hall IC

One-way magnetic field operation

■ Overview

The DN8797MS is a 3 V operation Hall IC which

includes a Hall element, amplifier circuit, Schmidt circuit,

stabilized power supply and temperature compensation cir-

cuit which are integrated on a single chip with a fine pat-

terning technology. The magnetic input signal is output-

ted by being converted to high or low. We have improved

the conventional circuit to realize a stable operation cov-

ering from low to high supply voltage and from low to

high temperature.

■ Features

• Wide operating supply voltage range

• Wide operating ambient temperature (−40°C to +85°C)

• Package: Mini type (3-pin type)

(1.1 mm thick: Same as a standard transistor)

• Eqipped with an output pull-up resistor (typical 56 kΩ)

■ Applications

• DC brushless motor, fan motor, rotation sensor, detec-

tion of cover open/close (example for a cellular phone),

position sensor

■ Block Diagram

Unit: mm

MINI-3D

1

Out

3

GND

56 k

Ω

(typ.)

Constant

voltage source

Hall element

Amplifier

Comparator

2.80

+0.20

–0.30

1.50

+0.25

–0.05

0.65±0.15

0.65±0.15

3

1

2

0.40±0.20

0.10 to 0.30

Note) The package of this product will be changed

to lead-free type (MINI-3DA). See the new

package dimensions section later of this

datasheet.