Diodes AH342 User Manual

A

Pb

ACTIVE HIGH/LOW COMPLEMENTARY OUTPUT HALL-EFFECT LATCH

Description

The AH342 is a bipolar latching hall IC with a pair of complementary

push/pull outputs. A dual hall element is used to offset stress induced

noise and drift. The robust outputs are capable of sourcing up to

7.4mA and sinking up to 4.4mA. The device contains inherent reverse

polarity protection up to the full power supply range.

Features

• Digital dual complementary sink/source outputs

• Reverse Voltage Polarity protection for full supply range

• High output current capability

• Low profile packages: SIP-4L

ADVANCED INFORMATION

• Lead Free Package: SIP-4L

• Lead-Free Finish; RoHS Compliant (Notes 1 & 2)

Notes: 1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.

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

Pin Assignments

( Top View )

342

12 43

SIP-4L

Applications

• Conveyors

• Motor Control

• Power Sensing

• Linear or Rotary Motion Detection

• RPM Sensing

1 : Vcc

2 : DO

3 : DOB

4 : Vss

H342

Pin Descriptions

Pin Name P/I/O Pin # Description

VCC

DO O 2 Output Pin

DOB O 3 Output Pin

Vss P 4 Ground

P 1 Power Supply Input

AH342

Document number: DS30886 Rev. 4 - 2

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Functional Block Diagram

H342

OUTPUT AMP

7.5V

SOURCE

660

510

SINK

ADVANCED INFORMATION

Voltage

Regulator

Output

Amp

#1

Output

Hall

Sensor

Amp

and

Trigger

Interface

Circuit

Amp

#2

Absolute Maximum Ratings (@T

Symbol Parameter Rating Unit

VCC

V

out

Ic Output Current ±10 mA

B Magnetic Flux Density Unlimited Gauss

TST

Note: 3. Absolute maximum ratings are the extreme limits that the device will withstand without damage to the device. However, the electrical and magnetic characteristics are not guaranteed as the maximum limits (above recommended operating conditions) are approached nor will the device necessarily operate at absolute maximum rating.

Supply Voltage ±28 V

Voltage Externally Applied to Output -1.2 to +5 V

Storage Temperature Range -40to +150 °C

Recommended Operating Conditions (@T

Symbol Characteristic Conditions Min Max Unit

VCC

TA

Note: 4. Shall not exceed PD and Safety Operation Area.

AH342

Document number: DS30886 Rev. 4 - 2

Supply Voltage Operating 4.5 28 V

Operating Ambient Temperature (Note 4) Operating -40 +125 °C

= +25°C, unless otherwise specified.) (Note 3)

A

= +25°C, unless otherwise specified.)

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IO

1

2

I

O

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Electrical Characteristics (@T

Symbol Characteristic Conditions

ICC

utput Voltage

V

OUT

I

Leak(sink)

utput Current

I

OUT

utput Switching Time

tf Fall Time 90% to 10%; no load 28V±0.5% Supply - - - - - 1.0

tr Rise Time 10% to 90%; no load 28V±0.5% Supply - - - - - 1.0

ADVANCED INFORMATION

Supply Current 28V±0.5% supply 4 4.5 6 3 4.5 7 mA

#1 Sourcing

#2 Sinking 0 0.1 0.2 - - -

#1 Sinking 0 0.1 0.2 - - -

#2 Sourcing 6.0 7.0 7.5 - - -

Leakage (sink)

#1 Sourcing Apply 2V to output and measure current.

#2 Sinking 2.8 3.4 4.7 2.4 3.4 5.0

#1 Sinking 2.8 3.4 4.7 2.4 3.4 5.0

#2 Sourcing 5.5 7.4 8.0 5.0 7.4 8.5

= +25°C, unless otherwise specified.) (Note5,6)

A

Switch magnetically operated: No load 28V±0.5% supply. Switch magnetically released: No load 28V±0.5% supply.

Apply voltage 0.2V greater than measured output source voltage measure current, no load 28V±0.5% supply.

Switch magnetically operated, no load 28V±0.5%.

Apply 2V to output and measure current. Switch magnetically released, no load 28V±0.5%.

24°C ± 2°C -40°C to +125°C

Min Typ Max Min Typ Max

6.0 7.0 7.5 - - -

- - 1.0 - - 1.0 µA

5.5 7.4 8.0 5.0 7.4 8.5

Magnetic Characteristics

( 1mT = 10 Gauss )

24°C ± 2°C

V

Symbol Characteristic

Bop Operate Point 40 120 30 150 Gauss

Brp Release Point -120 -40 -150 -30 Gauss

Bhy Hysteresis 120 200 120 200 Gauss

Notes: 5. All the parameters are tested under the 25oC only. The operation temperature (-40oC to 125oC) is guaranteed by design, it is typical value.

6. The magnetic field strength (gauss) required to cause the switch to change state (operate and release) will be as specified in the magnetic characteristics. To test the switch against the specified magnetic characteristics the switch must be placed in a uniform magnetic field.

= 12VDC ± 0.5%VDC

S

Min Max Min Max

-40°C to +125°C

VS = 4.5VDC to 28VDC

H342

Units

V

mA

µs

Unit

Output Voltage in Volts

AH342

Document number: DS30886 Rev. 4 - 2

DOB

DO

Bhy Turn onTurn offBhy Turn offTurn on

Output Voltage in Volts

V

SAT

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V

SAT

BopBop BrpBrp

00

Magnetic Flux Density in GaussMagnetic Flux Density in Gauss

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Operation Characteristics



S

N

Marking Side

High

(Output Voltage)

V

SAT

H342

DO

V

CC

V

d

hy

B

Low

(SIP-4L)

ADVANCED INFORMATION

Performance Characteristics

TA (°C)

PD (mW)

T

(°C)

A

PD (mW)

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

N

B

0

rp

(Magnetic Flux Density )

B

op

S

AH342

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Ordering Information

Part Number

AH342-PL-B P SIP-4 1000 -B

AH342-P-B P SIP-4 1000 -B

Package Code Packaging

Marking Information

ADVANCED INFORMATION

H342

Bulk

Quantity Part Number Suffix

AH342

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Package Outline Dimensions (All dimensions in mm.)

(1) Package type: SIP-4L

a

1︵2

x

︶

A

S

a

2︵2

x

︶

b

E

J

D

2

L

1

ADVANCED INFORMATION

L

F

H342

c

Dim Min Max Typ

A 1.45 1.65 1.55 b1 0.38 0.44 0.40 b2 - - 0.48

c 0.35 0.45 0.40

x

︶

2

°

︵

5

4

x

3

.

b

1

0

D 5.12 5.32 5.22 e1 1.24 1.30 1.27

E 3.55 3.75 3.65

F 0.00 0.20 -

J 4.10 4.30 4.20

L 14.00 14.60 14.30 L1 1.32 1.52 1.42

S 0.63 0.83 0.73

a

4︵2

a

3︵2

x

e

1

︶

x

︶

a1 - 5° 3° a2 4° 7° 5° a3 4° 7° 5° a4 - 5° 3°

All Dimensions in mm

SIP-4

AH342

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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.

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:

ADVANCED INFORMATION

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

1. are intended to implant into the body, or

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.

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

IMPORTANT NOTICE

LIFE SUPPORT

H342

AH342

Document number: DS30886 Rev. 4 - 2

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