LA6583MC

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5

APPLICATION CIRCUIT EXAMPLE

Figure 3. Application Circuit Example

HB

Di

IN+

IN−

HB

IN+

IN−

Cr

GND

RD

FG

OUT1

OUT2

R2

*1

*2

*5

*4

*3

Elements in Substrate

H

R1

H

LA6583MC

*1: When Di to prevent breakdown in case of reverse

connection is used, it is necessary to insert

a capacitor Cr to secure the regenerative current

route. Similarly, Cr is necessary to enhance the

reliability when there is no capacitor near the fan

power line.

*2: When the Hall bias is taken from the HB pin,

constant-voltage bias is made with about 1.3 V.

Therefore, the Hall output becomes the stable

amplitude voltage satisfactory in temperature

characteristics.

By inserting R2 to obtain the Hall bias from both

generation of IC can be suppressed.

*3: In this IC, the Hall output amplitude is amplified

to produce the drive waveform.

Therefore, the switching time of the current

application direction is determined by the Hall

output, causing change in the characteristics of

motor. If the Hall element output amplitude is

large, the start-up performance and efficiency of

the IC are improved. On the other hand, if the Hall

element output amplitude is small, low-noise drive

is ensured. Adjust the Hall element output

amplitude by R1.

*4: Keep this open when this is not used.

*5: When the wiring from the Hall output to IC Hall

input is long, noise may be carried through the

wiring.

In this case, insert the capacitor as shown in the

figure.

ORDERING INFORMATION

Device

Package

Wire Bond

LA6583MC−AH

MFP10SK (225mil)

Au−wire

1,000 / Tape & Reel

LA6583MC−W−AH

MFP10SK (225mil)

Cu−wire

1,000 / Tape & Reel

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging

Specifications Brochure, BRD8011/D.