Datasheet AH1751-PG-B-A Specification

AH1751

HALL EFFECT LATCH

Features

• Bipolar Hall Effect Latch Sensor

• 3.5V to 20V DC Operation Voltage

• Open Collector Pre-Driver

• 50mA Output Sink Current

• Chip Power Reverse-Connection Protection

• Operating Temperature: -40

• SIP3, SC59 and SC59R (Commonly known as SOT23

in Asia): Available in “Green” Molding Compound

(No Br, Sb)

• Lead Free Finish/ RoHS Compliant (Note 1)

o

C~125oC

Applications

• Rotor Position Sensing

• Current Switch

• Encoder

• RPM Detection

Ordering Information

AH1751 - X G - X - A

General Description

AH1751 is a single-digital-output Hall-effect sensor for high temperature operation. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier to amplify Hall voltage, and a comparator to provide switching hysteresis for noise rejection, and an open-collector output pre-driver. An internal band-gap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range.

While the magnetic flux density (B) is larger than threshold Bop, the OUT pin turns on (low). If B removed toward Brp, the OUT p in is latched “on” state prior to B < Brp. When B < Brp, the OUT pin go into “off ” state.

Package

P : SIP3

W : SC59

R : SC59R

Green

G : Green

Packing

A : Ammo (Note 3) B : Bulk (Note 4)

7 : Tape & Reel

Magnetic

Characteristics

A

Device

AH1751-PG-A-A P SIP3 NA NA NA NA 4000/Box -A A AH1751-PG-B-A P SIP3 1000 -B NA NA NA NA A

AH1751-WG-7-A AH1751-RG-7-A

Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at

2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.

3. Ammo Box is for SIP3 Spread Lead.

4. Bulk is for SIP3 Straight Lead.

Package

http://www.diodes.com/products/lead_free.html

Packaging

Code

(Note 2)

W SC59 NA NA 3000/Tape & Reel -7 NA NA A

R SC59R NA NA 3000/Tape & Reel -7 NA NA A

Tube/Bulk 7” Tape and Reel Ammo Box

Quantity

Part Number

Suffix

Quantity

Part

Number

Suffix

Quantity

Part

Number

Suffix

Magnetic

Characteristics

AH1751 Rev. 4 1 of 9 OCTOBER 2009 DS31436 www.diodes.com © Diodes Incorporated

Pin Assignment

(1) SIP3 (2) SC59

( Top View )

3.

OUT

AH1751

HALL EFFECT LATCH

( Top View )

(3) SC59R

( Top View )

GND 2.

Pin Descriptions

Pin Name Description

VCC GND Ground OUT Output Stage

Input Power

3.

1.

2. GND

1.

V

CC

Output

3.

Output

GND 2.

1.V

CC

V

CC

AH1751 Rev. 4 2 of 9 OCTOBER 2009 DS31436 www.diodes.com © Diodes Incorporated

)

Block Diagram

V

CC

1

REG.

AMP

AH1751

HALL EFFECT LATCH

3

OUT

GND

2

Absolute Maximum Ratings (T

Symbol Parameter Rating Unit

VCC Supply Voltage 20 V

V

(off)

out

Io (sink)

TST Storage Temperature Range -65~+150

T

J(MAX

PD Power Dissipation

Output “OFF ” Voltage 20 V Output “ON” Current 100 mA

Maximum Junction Temperature +150

= 25°C)

A

SIP3 550 mW SC59 and SC59R 230 mW

Recommended Operating Conditions

Symbol Parameter Conditions Min Max Unit

VCC Supply Voltage Operating (Note 5) 3.5 20 V

TA Operating Temperature Range Operating -40 125

Notes: 5. Operating, the output is switching as magnetic field change (S>300G, N<-300G).

°C °C

°C

AH1751 Rev. 4 3 of 9 OCTOBER 2009 DS31436 www.diodes.com © Diodes Incorporated

AH1751

HALL EFFECT LATCH

Electrical Characteristics (T

Symbol Parameter Conditions Min Typ. Max Unit

V

(

out

ICC Supply Current

Output Saturation Voltage

)

SAT

Magnetic Characteristics (T

A grade (1mT = 10 Gauss)

Symbol Parameter Min Typ. Max Unit

Bops(south pole to brand s ide) Operation P oint 5 - 70 Gauss

Brps(south pole to brand side) Release Point -70 - -5 Gauss

Bhy( BrpxBopx − )

Notes: 6. Magnetic characteristics are for design information, which will vary with supply voltage, operating temperature and after soldering.

= 25°C)

A

= 12V, OUT ”ON”

V

CC

= 50mA

I

o

= 12V, OUT ”OFF”

V

CC

= 25°C, V

A

Hysteresis - 75 - Gauss

= 4~20V, Note 6)

CC

- 200 300 mV

- 3.5 6 mA

Operating Characteristics

V

out

V

S

Marking side

N

S

N

Marking side

Hig

Voltage)

h

(Output

SA

V

T

(SIP3)(SC59 and SC59R)

( Magnetic Flux Density )

AH1751 Rev. 4 4 of 9 OCTOBER 2009 DS31436 www.diodes.com © Diodes Incorporated

cc

d

V

hy

B

Lo

w

rp

B

op

B

0

Performance Characteristics

(1) SIP3

TA (°C)

PD (mW)

TA (°C)

PD (mW)

P

(mW )

D

600 500 400 300 200

25 50 60 70 80 85 90 95 100

550 440 396 352 308 286 264 242 220

105 110 115 120 125 130 135 140 150

198 176 154 132 110 88 66 44 0

Pow er Dissipation Curve

AH1751

HALL EFFECT LATCH

100

0

0 25 50 75 100 125 150

-40

(2) SC59 and SC59R (Commonly known as SOT23 in Asia)

TA (°C)

PD (mW)

25 50 60 70 80 90 100 110 120 125 130 140 150

230 184 166 147 129 110 92 74 55 46 37 18 0

P

(m W )

D

300

200

100

Power Dissipation Curve

T

A (°C)

0

0 25 50 75 100 125 150

-40

(°C )

T

A

Marking Information

(1) SIP3

( Top View )

Part Number

(2) SC59 and SC59R (Commonly known as SOT23 in Asia)

1751

WW X

Y

WW 52 and 53 week

AH1751

HALL EFFECT LATCH

: Year : 0~9

Y

: Week : 01~52, "52" represents

X : Internal Code : A~Z : Green

( Top View )

XX : Identification code

: Year 0~9

Y

W

XX Y W

X

: Week : A~Z : 1~26 week;

a~z : 27~52 week; z represents 52 and 53 week

: A~Z : Green

X

Part Number Package Identification Code

AH1751 SC59 RK AH1751 SC59R SK

Package Information (All Dimensions in mm)

(1) Package Type: SIP3 for Bulk pack

0.51mm NOM

AH1751

HALL EFFECT LATCH

2.00mm

1.15mm

BRANDED SURFACE

Active Area Depth

Package Dimension

123

Sensor Location

Package Information (Continued)

(2) Package Type: SIP3 for Ammo pack

AH1751

HALL EFFECT LATCH

(3) Package Type: SC59 and SC59R (Commonly known as SOT23 in Asia)

O

1.00/

1.30

0.013/0.10

0.35/0.50

TOP VIEW

1.90

2.90/3.10

0.95

2.70/

1.50/

1.70

3.00

0.35/0.55

0.10/0.20

0O/8

AH1751

HALL EFFECT LATCH

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provided

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Datasheet AH1751-PG-B-A Specification

Specifications and Main Features

Frequently Asked Questions

User Manual