AH286 datasheet(4/9 Pages) DIODES

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AH286

HALL-EFFECT SMART FAN MOTOR CONTROLLER

AH286

Document number: DS31030 Rev. 12 - 2

4 of 9

www.diodes.com

June 2010

Electrical Characteristics (TA = 25 °C, Vdd = 12V, unless otherwise specified)

Symbol

Characteristics

Conditions

Min

Typ.

Max

Unit

Idd

Supply Current

Operating

2.0

4.0

IOFF

Output Leakage Current

VOUT = 24V

< 0.1

μA

TRLP-ON

Rotor Lock Protection On Time

0.4

0.5

0.6

Sec

TRLP-OFF

Rotor Lock Protection Off Time

2.4

3.6

Sec

VOUT(SAT)

Output Saturation Voltage

IO = 300mA

375

500

IO = 500mA

625

900

RDS(ON)

Output On Resistance

IO = 300mA

1.25

1.67

ohm

VOL

RD Output Vds

IO = 10mA

0.5

Output Zener-Breakdown Voltage

Truth Table (Note 3)

IN-

IN+

OUT1

OUT2

Mode

Rotating

off

Lockup protection activated

Notes:

3. Latch-type RD output is low during rotor rotation and high when the rotor is locked (not rotating)

Magnetic Characteristics (TA = 25 °C, Vdd = 12V, unless otherwise specified, Note 4)

(1mT = 10 Gauss)

Symbol

Characteristics

Min

Typ.

Max

Unit

Bop

Operate Point

Gauss

Brp

Release Point

-60

-30

-10

Gauss

Bhy

Hysteresis

Gauss

Notes:

4. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.

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