1/5

ISSUED DATE :2004/11/03

REVISED DATE :

G

C

C

Description

The G266 is an integrated Hall sensors with output drivers designed for electronic commutation of brushless DC motor

applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall

voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and complementary open-collector drivers for

sinking large current loads. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal

circuits and allows a wide operating supply range.

If a magnetic flux density larger than threshold Bop, DO is turned on (low) and DOB is turned off (high). The output state is

held until a magnetic flux density reversal falls below Brp causing DO to be turned off and DOB turned on.

G266 is rated for operation over temperature range from -20

to 1

:

00 : and voltage range from 3.5V to 28V. The devices

are available in low cost die forms or rugged 4 pin SIP packages.

Features

*On-chip Hall sensor IC with two different sensitivity and hysteresis settings for G266

*Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range.

*High output sinking capability up to 300mA for driving large load.

*Lower current change rate reduces the peak output voltages during switching.

*Build in protection diode for chip reverse power connecting.

*Package: SIP-4L.

Application

1)Brushless DC Motor

2)Brushless DC Fan

3)Revolution Counting

4)Speed Measurement

Package Dimensions

Millimeter

Millimeter

REF.

Min.

Max.

REF.

Min.

Max.

A

1.295

1.803

D

5.105

5.359

A1

0.610

E

3.531

3.785

b

0.330

0.432

L

14

16

b1

0.406

0.508

e

1.27REF