AH3574_技术文档

AH3574

HIGH VOLTAGE HIGH SENSITIVITY

HALL EFFECT OMNIPOLAR SWITCH

Description

Pin Assignments

The AH3574 is a high voltage high sensitivity Hall Effect Omnipolar

switch IC designed for proximity, position and level sensing in

consumer home appliances, office equipment, smart home to

industrial applications. To support wide range of demanding

applications, the design has been optimized to operate over the

supply range of 3.0V to 28V. With chopper stabilized architecture and

an internal bandgap regulator to provide temperature compensated

supply for internal circuits, the AH3574 provides a reliable solution

over the whole operating range. For robustness and protection, the

device has a reverse blocking diode with a Zener clamp on the

supply. The output has an over current limit and a Zener clamp.

(TOP View)

3 OUTPUT

1 V_DD

GND 2

SOT23

(TOP View)

The single open drain output can be switched on with South or North

pole of sufficient strength. When the magnetic flux density (B)

3. OUTPUT

2. GND

V_DD

perpendicular to the package is larger than the operate point (B_OP

)

1.

the output is switched on (pulled low) and is held on until magnetic

flux density B is lower than the release point (B_RP).

SIP-3 (Bulk Pack)

Features

Applications

•

Omnipolar Operation

High Sensitivity: B_OPand B_RPof ±40G and ±25G Typical

Single Open Drain Output with Over Current Limit

3.0V to 28V Operating Voltage Range

Chopper Stabilized Design Provides

•

Position and Proximity Sensing in Consumer Home Appliances,

Building Automation, Office Equipments and Industrial Applications

•

Open and Close Detect

Position Detect

•

Superior Temperature Stability

Minimal Switch Point Drift

Level Detect

Flow Meters

Enhanced Immunity to Stress

Contact-Less Switches

•

Good RF Noise Immunity

Reverse Blocking Diode

Zener Clamp on Supply and Output Pins

-40°C to +125°C Operating Temperature

ESD: HBM ＞ 6kV

Industry Standard SOT23 and SIP-3 (Ammo Pack), SIP-3 (Bulk

Pack) Packages

•

Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

Halogen and Antimony Free. “Green” Device (Note 3)

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.

2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

1 of 13

www.diodes.com

January 2018

AH3574

Document number: DS40413 Rev. 1 - 2

AH3574

Typical Applications Circuit

3.0V to 28V

V_DD

R_L

OUTPUT

AH3574

C_IN

GND

Note:

4. C_INis for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nF ~ 100nF.

R_Lis the pull-up resistor.

Pin Descriptions

Package: SOT23 and SIP-3 (Ammo Pack), SIP-3 (Bulk Pack)

Pin Number

Pin Name

V_DD

Function

Power Supply Input

1

2

3

GND

Ground

OUTPUT

Output Pin

Functional Block Diagram

V_DD

Power

Switch

To All Subcircuits

OUTPUT

Amp

Control

Current

Limit

GND

2 of 13

www.diodes.com

January 2018

AH3574

Document number: DS40413 Rev. 1 - 2

AH3574

Absolute Maximum Ratings (Note 5 & 6) (@T_A= +25°C, unless otherwise specified.)

Symbol

V_DD

Characteristic

Value

32

Unit

V

Supply Voltage (Note 6)

Reverse Supply Voltage (Note 6)

Output Off Voltage (Note 6)

Continuous Output Current

-32

32

V

V_DDR

V

V_{OUT_MAX}

I_OUT

I_{OUT_R}

B

60

mA

Reverse Output Current

Magnetic Flux Density

-50

mA

Unlimited

SIP-3 (Ammo Pack)

SIP-3 (Bulk Pack)

550

Package Power Dissipation

mW

P_D

SOT23

230

-65 to +165

+150

Ts

T_J

Storage Temperature Range

°C

kV

Maximum Junction Temperature

ESD HBM

Electros Static Discharge Withstand - Human Body Model (HBM)

6

Notes:

5. Stresses greater than the 'Absolute Maximum Ratings' specified above may cause permanent damage to the device. These are stress ratings only;

functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be

affected by exposure to absolute maximum rating conditions for extended periods of time.

6. The absolute maximum V_DDof 32V is a transient stress rating and is not meant as a functional operating condition. It is not recommended to

operate the device at the absolute maximum rated conditions for any period of time.

Recommended Operating Conditions (@T_A= -40°C to +125°C , unless otherwise specified.)

Symbol

V_DD

Parameter

Supply Voltage

Operating Temperature Range

Condition

Rating

3.0 to 28

Unit

V

Operating

-40 to +125

°C

T_A

Electrical Characteristics (Note 7 & 8) (@T_A= -40°C to +125°C , V_DD= 3V to 28V, unless otherwise specified.)

Symbol

Parameter

Output ON Voltage

Condition

I_OUT= 20mA, B > B_OP

Min

Typ

Max

Unit

V_{OUT_ON}

-

0.2

0.4

V

Output Leakage Current

(When Output is off)

I_LKG

-

<0.1

10

µA

V_OUT= 28V, B < B_RP, Output off

-

3

-

3.5

4

mA

µs

Output Open, T_A= +25°C

Output Open, T_A= -40°C to +125°C

V_DD= -18V, T_A= -40°C to +125°C

V_DD= -28V, T_A= -40°C to +125°C

V_DD>= 3V, B > B_OP(Note 7)

-

Supply Current

I_DD

-0.01

10

1

I_{DD_R}

Reverse Battery Current

1.5

-

Device Power-On Time (Start-up Time)

Chopping Frequency

t_{P_ON}

f_C

800

-

kHz

Response Time Delay

(Time from Magnetic Threshold Reach (Note 9)

to the Start of the Output Rise or Fall)

Output Rising Time

-

3.75

0.2

-

µs

t_D

t_R

t_F

(External Pull-Up Resistor RL and Load

Capacitance Dependent)

1

R_L= 1kΩ, C_L= 20pF

Output Falling Time

(Internal Switch Resistance and Load

Capacitance Dependent)

0.1

R_L= 1kΩ, C_L= 20pF

Output Current Limit

Zener Clamp Voltage

30

28

-

55

-

mA

V

I_OCL

V_Z

B > B_OP(Note 10 )

I_DD= 5mA

Notes:

7. When power is initially turned on, VDD must be within its correct operating range (3.0V to 28V) to guarantee the output sampling. The output state is valid

after the start-up time of 10µs typical from the operating voltage reaching 3V.

8. Typical values are defined at T_A= +25°C , V_DD= 12V. Maximum and minimum values over the operating temperature range is not tested in production but

guaranteed by design, process control and characterization.

9. Guaranteed by design, process control and characterization. Not tested in production.

10. The device will limit the output current I_OUTto current limit of I_OCL.

3 of 13

www.diodes.com

January 2018

AH3574

Document number: DS40413 Rev. 1 - 2

AH3574

Magnetic Characteristics (Note 11 &12) (T_A= -40°C to +125°C , V_DD= 3.0V to 28V, unless otherwise specified.)

(1mT=10 Gauss)

Symbol

Parameter

Condition

V_DD= 12V, T_A= +25°C

T_A= -40°C to +125°C

V_DD= 12V, T_A= +25°C

T_A= -40°C to +125°C

V_DD= 12V, T_A= +25°C

T_A= -40°C to +125°C

V_DD= 12V, T_A= +25°C

T_A= -40°C to +125°C

V_DD= 12V, T_A= +25°C

T_A= -40°C to +125°C

Min

-

Typ

40

Max

-

Unit

B_OPS(South Pole to the Part Marking Side)

20

-

40

60

-

Operation Point

-40

25

B_OPN(North Pole to the Part Marking Side)

B_RPS(South Pole to the Part Marking Side)

B_RPN(North Pole to the Part Marking Side)

B_HY(|B_OPX|-|B_RPX|)

-60

-

-20

-

Gauss

10

-

25

45

-

Release Point

-25

15

-45

-

-10

-

Hysteresis (Note 13)

10

15

22

Notes:

11. When power is initially turned on, V_DDmust be within its correct operating range (3.0V to 28V) to guarantee the output sampling. The output state is valid

after the start-up time of 10us typical from the operating voltage reaching 3V.

12. Typical values are defined at T_A= +25°C , V_DD= 12V. Maximum and minimum values over the operating temperature range is not tested in production

but guaranteed by design, process control and characterization.

13. Maximum and minimum hysteresis is guaranteed by design, process control and characterization.

Output

(Off-State)

V_DD

(Off-State)

Turn

on

Turn

off

BHY

Turn

on

Turn

off

BHY

(On-State)

V_{OUT_ON}= V_SAT

V_SAT

0

BOPS

BRPS

B^OPNBRPN

( Magnetic Flux Density B )

S

N

Part Mark

N

SIP-3 (Ammo Pack)

SIP-3 (Bulk Pack)

(SOT23)

4 of 13

www.diodes.com

January 2018

AH3574

Document number: DS40413 Rev. 1 - 2

AH3574

Typical Operating Characteristics

Output Switch Operate and Release Points (Magnetic Thresholds) – B_OPsand B_RPs

Supply Current

5 of 13

www.diodes.com

January 2018

AH3574

Document number: DS40413 Rev. 1 - 2

AH3574

Typical Operating Characteristics (Cont.)

Supply Reverse Current

Output Switch On Voltage

Output Switch Leakage Current

6 of 13

www.diodes.com

January 2018

AH3574

Document number: DS40413 Rev. 1 - 2

AH3574

Typical Operating Characteristics (Cont.)

Output Current Limit

7 of 13

www.diodes.com

January 2018

AH3574

Document number: DS40413 Rev. 1 - 2

AH3574

Thermal Performance Characteristics

(1) Package Type: SOT23

25

50

60

70

80

85

90

100

105

110

120

125

130

140

150

T_A(°C)

230

184

166

147

129

120

110

92

83

74

55

46

37

18

0

P_D(mW)

Power Dissipation Curve

300

200

100

0

-40

0

25

50

75

100

125

150

Ambient Temperature T_A(°C)

(2) Package Type: SIP-3 (Ammo Pack), SIP-3 (Bulk Pack)

25

50

60

70

80

85

90

100

105

110

120

125

130

140

150

T_A(°C)

550

440

396

362

308

286

264

220

198

176

132

110

88

44

0

P_D(mW)

Power Dissipation Curve

600

500

400

300

200

100

0

-40

0

25

50

75

100

125

150

Ambient Temperature T_A(°C)

8 of 13

www.diodes.com

January 2018

AH3574

Document number: DS40413 Rev. 1 - 2

AH3574

Ordering Information

AH3574 - X - X

Package

Packing

Product Name

7 : Tape & Reel

A: Ammo Box (Note 14)

B: Bulk (Note 15)

P : SIP-3(Ammo Pack)

P : SIP-3(Bulk Pack)

SA : SOT23

Bulk

7” Tape and Reel

Ammo Box

Package

Part Number

Code

Packaging

Quantity

Part Number

Suffix

Part Number Quantity Part Number

Quantity

Suffix

AH3574-P-A

AH3574-P-B

AH3574-SA-7

P

SIP-3 (Ammo Pack)

SIP-3 (Bulk Pack)

SOT23

NA

1000

NA

-B

NA

4000/Box

NA

-A

NA

SA

NA

3000/Tape & Reel

-7

Notes:

14. Ammo Box is for SIP-3 (Ammo Pack) Spread Lead.

15. Bulk is for SIP-3 (Bulk Pack) Straight Lead.

Marking Information

(1) Package Type: SOT23

( Top View )

XX : Identification code

Y : Year 0 to 9

W : Week : A to Z : 1 to 26 week;

XX Y W X

a to z : 27 to 52 week; z represents

52 and 53 week

X : Internal code

Part Number

Package

Identification Code

AH3574

SOT23

Z8

(2) Package Type: SIP-3 (Ammo Pack), SIP-3 (Bulk Pack)

( Top View )

Y : Year : 0~9

WW : Week : 01~52, "52" represents

Part Number

3574

Y WW X

52 and 53 week

X : Internal Code

Part Number

AH3574

Package

Identification Code

SIP-3 (Ammo Pack)

SIP-3 (Bulk Pack)

3574

AH3574

9 of 13

www.diodes.com

January 2018

AH3574

Document number: DS40413 Rev. 1 - 2

AH3574

Package Outline Dimensions (All dimensions in mm.)

Please see http://www.diodes.com/package-outlines.html for the latest version.

(1) Package Type: SOT23

All 7°

SOT23

H

Dim

A

B

C

D

F

G

H

Min

Max

0.51

1.40

2.50

1.03 0.915

0.60 0.535

Typ

0.40

1.30

2.40

GAUGE PLANE

0.37

1.20

2.30

0.89

0.45

1.78

2.80

0.25

J

K

K1

a

M

A

2.05

3.00

1.83

2.90

0.05

L

L1

J

0.013 0.10

K

K1

L

L1

M

a

0.890 1.00 0.975

0.903 1.10 1.025

0.45

0.25

0.61

0.55

0.40

C

B

0.085 0.150 0.110

0° 8° --

All Dimensions in mm

D

G

F

Min/Max

PART

MARKING

SURFACE

Die

Hall Sensor

Pin1

1.4/1.5

Sensor Location

10 of 13

www.diodes.com

January 2018

AH3574

Document number: DS40413 Rev. 1 - 2

AH3574

Package Outline Dimensions (Cont.) (All dimensions in mm.)

Please see http://www.diodes.com/package-outlines.html for the latest version.

(2) Package Type: SIP-3 (Bulk Pack)

SIP-3 (Bulk Pack)

Dim

A

b

b2

c

D

E

e1

F

Min

Max Typ

1.40 1.60 1.50

0.33 0.43 0.38

0.40 0.508 0.46

0.35 0.41 0.38

3.90 4.30 4.10

2.80 3.20 3.00

1.24 1.30 1.27

S

D

J

A

0.00 0.20

2.62 REF

--

J

E

L

L1

S

14.00 15.00 14.50

1.55 1.75 1.65

0.63 0.84 0.74

b2

L1

a1

a2

a3

a4

--

5

45

3

F

All Dimensions in mm

L

b

c

e1

Min/Max

0.63/0.84

0.27/0.48

1.90/2.10

1.05/1.25

Hall Sensor

e

i

PART

MARKING

SURFACE

D

PART

MARKING

SURFACE

2

1

3

Sensor Location

11 of 13

www.diodes.com

January 2018

AH3574

Document number: DS40413 Rev. 1 - 2

AH3574

Package Outline Dimensions (Cont.) (All dimensions in mm.)

Please see http://www.diodes.com/package-outlines.html for the latest version.

(3) Package Type: SIP-3 (Ammo Pack)

SIP-3

(Ammo Pack)

Dim

A

b

b2a

c

D

Min

Max Typ

S

1.40 1.60 1.50

0.33 0.43 0.38

0.40 0.52 0.46

0.35 0.41 0.38

3.90 4.30 4.10

2.80 3.20 3.00

1.24 1.30 1.27

2.40 2.90 2.65

D

A

J

E

e1

e2

F

J

L

La

L1

L3

S

a1

a2

a3

a4

E

0.00 0.20

2.62 REF

--

b2a

F

L1

L3

14.00 15.00 14.50

12.90 14.90 13.90

1.55 1.75 1.65

2.00 3.00 2.50

0.63 0.84 0.74

--

e1

La

--

5

45

L

3

All Dimensions in mm

e2

b

c

Min/Max

0.63/0.84

0.27/0.48

1.90/2.10

1.05/1.25

Hall Sensor

PART

MARKING

SURFACE

PART

MARKING

SURFACE

2

1

3

Sensor Location

12 of 13

www.diodes.com

January 2018

AH3574

Document number: DS40413 Rev. 1 - 2

AH3574

Suggested Pad Layout

Please see http://www.diodes.com/package-outlines.html for the latest version.

(1) Package Type: SOT23

Dimensions Value (in mm)

Y

C

X

2.0

0.8

X1

Y

1.35

0.9

Y1

C

Y1

2.9

X

X1

IMPORTANT NOTICE

DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,

INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).

Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes

without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the

application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or

trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume

all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated

website, harmless against all damages.

Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.

Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and

hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or

indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.

Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings

noted herein may also be covered by one or more United States, international or foreign trademarks.

This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the

final and determinative format released by Diodes Incorporated.

LIFE SUPPORT

Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express

written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:

A. Life support devices or systems are devices or systems which:

1. are intended to implant into the body, or

2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the

labeling can be reasonably expected to result in significant injury to the user.

B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the

failure of the life support device or to affect its safety or effectiveness.

Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and

acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any

use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related

information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its

representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.

www.diodes.com

13 of 13

www.diodes.com

January 2018

AH3574

Document number: DS40413 Rev. 1 - 2


型号：	AH3574
厂家：	DIODES INCORPORATED
描述：	HIGH VOLTAGE HIGH SENSITIVITY HALL EFFECT OMNIPOLAR SWITCH 高压
文件：	总13页 (文件大小：888K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

AH3574 [DIODES]

相关型号：

AH3574-P-A

AH3574-P-B

AH3574-SA-7

AH3582

AH3582-P-A

AH3582-P-B

AH3582-SA-7

AH365-00

AH365-92

AH365-93

AH365-95

AH366-00