Ah288, Electrical characteristics, Magnetic characteristics – Diodes AH288 User Manual

Page 5

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AH288

HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR

CONTROLLER

AH288 Rev. 12

5 of 9

APRIL 2010

DS31040

www.diodes.com

©

Diodes Incorporated

Electrical Characteristics

(T

A

= 25

°C, Vdd

= 24V, unless otherwise specified)


Symbol

Parameter

Conditions

Min

Typ.

Max

Unit

I

CC

Supply

Current

Operating

-

2

4

mA

I

OFF

Output Leakage Current

V

OUT

= 24V

-

< 0.1

10

μA

T

LRP-ON

Locked Protection On

0.4

0.46

0.6

Sec

T

LRP-OFF

Locked Protection Off

2.4

2.76

3.6

Sec

V

OUT(SAT)

Output Saturation Voltage

I

O

= 200mA

-

450

700

mV

I

O

= 300mA

-

680

800

R

DS(ON)

Output On Resistance

I

O

= 200mA

-

2.25

3.5

ohm

V

OL

FG

Output

Vds

I

O

= 10mA

-

0.3

0.5

V

V

Z

Output

Zener-breakdown

Voltage

42

55

65

V


Truth Table

IN-

IN+

CT

OUT1

OUT2

FG

Mode

H L L H L H

Rotating

L H L L H L

Rotating

- - H

off

off - Lockup

protection

activated


Magnetic Characteristics

(T

A

= 25

°C, Vdd

= 24V, unless otherwise specified, Note 7)


(1mT=10 Gauss)

Symbol

Characteristics

Min

Typ.

Max

Unit

Bop Operate

Point

10

30

60

Gauss

Brp Release

Point

-60 -30 -10 Gauss

Bhy Hysteresis

-

60

-

Gauss

Notes: 7. Magnetic characteristics are for design information, which will vary with supply voltage, operating temperature and after soldering.

















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