AH49ENTR-G1 - DIODES INC - Datasheet.Live

LINEAR HALL-EFFECT IC AH49E

Data Sheet

1

Aug. 2010 Rev. 1. 3 BCD Semiconductor Manufacturing Limited

General Description

The AH49E is a small, versatile linear Hall-effect

device that is operated by the magnetic field from a

permanent magnet or an electromagnet. The output

voltage is set by the supply voltage and varies in pro-

portion to the strength of the magnetic field.

The integrated circuitry features low noise output,

which makes it unnecessary to use external filtering. It

also includes precision resistors to provide increased

temperature stability and accuracy. The operating tem-

perature range of these linear Hall sensors is -40oC to

85oC, appropriate for commercial, consumer and

industrial applications.

The AH49E is available in standard TO-92S and SOT-

23-3 packages.

Features

·Miniature Construction

·Power Consumption of 3.5mA at VCC=5V for

Energy Efficiency

·Single Current Sourcing Output

·Linear Output for Circuit Design Flexibility

·Low Noise Output Virtually Eliminates the Need

for Filtering

·A Stable and Accurate Output

·Temperature Range of -40oC to 85oC

·Responds to Either Positive or Negative Gauss

Applications

·Current Sensing

·Motor Control

·Position Sensing

·Magnetic Code Reading

·Ferrous Metal Detector

·Vibration Sensing

·Liquid Level Sensing

·Weight Sensing

Figure 1. Package Types of AH49E

TO-92S SOT-23-3

LINEAR HALL-EFFECT IC AH49E

Data Sheet

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Aug. 2010 Rev. 1. 3 BCD Semiconductor Manufacturing Limited

Figure 2. Pin Configuration of AH49E

Pin Configuration

Pin Description

Pin Number

Pin Name Function

TO-92S SOT-23-3

1 1 VCC Supply voltage

2 3 GND Ground pin

3 2 OUT Output

(TO-92S )

VCC

GND

OUT

Z3 Package

1

2

3

(Front View)

(SOT-23-3 )

N Package

3

21

(Top View)

GND

VCC OUT

LINEAR HALL-EFFECT IC AH49E

Data Sheet

3

Aug. 2010 Rev. 1. 3 BCD Semiconductor Manufacturing Limited

Functional Block Diagram

Figure 3. Functional Block Diagram of AH49E

GND

OUT

Package Temperature

Range

Part Number Marking ID Packing Type

Lead Free Green Lead Free Green

TO-92S

-40 to 85oC

AH49EZ3-E1 AH49EZ3-G1 AH49E AH49G Bulk

SOT-23-3 AH49ENTR-G1 GJ1 Tape & Reel

Circuit Type

Packages

Z3: TO-92S

E1: Lead Free

AH49E -

Blank: Bulk

Ordering Information

VCC

HALL

Sensor Amplifier

3 (2)

1 (1)

2 (3)

65µA

Typ.

BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with

"G1" suffix are available in green package.

G1: Green

A (B)

A for TO-92S

B for SOT-23-3

N: SOT-23-3

TR: Tape and Reel

LINEAR HALL-EFFECT IC AH49E

Data Sheet

4

Aug. 2010 Rev. 1. 3 BCD Semiconductor Manufacturing Limited

Parameter Symbol Value Unit

Supply Voltage VCC 8V

Output Current IO10 mA

Operating Temperature TA-40 to 100 oC

Storage Temperature Range TSTG -50 to 150 oC

ESD (Human Body Model) 3000 V

Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the

device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indi-

cated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended

periods may affect device reliability.

Parameter Symbol Min Max Unit

Supply Voltage VCC 3.0 6.5 V

Operating Temperature TOP -40 85 oC

Recommended Operating Conditions

Absolute Maximum Ratings (Note 1)

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Aug. 2010 Rev. 1. 3 BCD Semiconductor Manufacturing Limited

LINEAR HALL-EFFECT IC AH49E

Data Sheet

(VCC=5V, TA=25oC, unless otherwise specified.)

Parameter Symbol Conditions Min Typ Max Unit

Supply Current ICC 3.5 4.5 mA

Quiescent Output Voltage VNULL @ B=0GS 2.25 2.5 2.75 V

Output Voltage Sensitivity B=0GS to ±1000GS 1.1 1.6 2.1 mV/GS

Output Voltage Span VOS 1.0 to

(VCC-1.0)

0.8 to

(VCC-0.8)

V

Output Resistor RO60 120 Ω

Magnetic Field Range B ±650 ±1000 GS

Linearity of Span 0.7 %

Output Noise BW=10Hz to 10kHz 90 µV

Electrical Characteristics

LINEAR HALL-EFFECT IC AH49E

Data Sheet

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Aug. 2010 Rev. 1. 3 BCD Semiconductor Manufacturing Limited

Transfer Characteristics (VCC=5V)

When there is no outside magnetic field (B=0GS), the

quiescent output voltage is one-half the supply voltage

in general.

For TO-92S package, if a south magnetic pole

approches to the front face (the side with marking ID)

of the Hall effect sensor, the circuit will drive the

output voltage higher. Contrary, a north magnetic pole

will drive the output voltage lower. The variations of

voltage level up or down are symmetrical. Due to

SOT-23-3 is reversed packaging with TO-92S, so the

magnetic performance is also reversed. Therefor, if

the reversed magnetic pole approches to the front face

(the side with marking ID), the output is the same as

TO-92S package.

.

Greatest magnetic sensitivity is obtained with a supply

voltage of 6V, but at the cost of increased supply

current and a slight loss of output symmetry. So, it is

not recommended to work in such condition unless the

output voltage magnitude is a main issue. The output

signal can be capacitively coupled to an amplifier for

boosting further if the changing frequency of the

magnetic field is high.

1000-1000 500-500 0

1.0 V

2.5 V

4.0 V

Typical

Output

Voltage

V

B (Gauss)

Figure 4. The Transfer Characteristics of AH49E

South Pole North Pole

TO-92S Package SOT-23-3 Package

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Aug. 2010 Rev. 1. 3 BCD Semiconductor Manufacturing Limited

LINEAR HALL-EFFECT IC AH49E

Data Sheet

Typical Performance Characteristics

Figure 7. Output Voltage vs. Ambient Temperature

Figure 5. Output Voltage vs. Magnetic Field

Figure 6. Output Voltage vs. Supply Voltage

-1000 -500 0 500 1000

0

1

2

3

4

5

VCC=5V

No load

VOUT(V)

B(GS)

2345678

0

1

2

3

4

5

B=0GS

No load

VOUT(V)

VCC(V)

-40 0 40 80 120

0

1

2

3

4

5

VCC=5V

B=0GS

No load

VOUT(V)

TA(OC)

LINEAR HALL-EFFECT IC AH49E

Data Sheet

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Aug. 2010 Rev. 1. 3 BCD Semiconductor Manufacturing Limited

Mechanical Dimensions

TO-92S Unit: mm(inch)

1.480(0.058)

1.680(0.066)

0.710(0.028)

0.810(0.032)

3.080(0.121)

3.280(0.129)

2.200(0.087)

2.400(0.094)

0.440(0.017)

TYP

13.500(0.531)

14.500(0.571)

0.380(0.015)

TYP

1.270(0.050)

TYP

44

46

4.000(0.157)

4.200(0.165)

°

1.350(0.053)

1.050(0.041)

2.200(0.087)

1.900(0.075)

Package Sensor

Location

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Aug. 2010 Rev. 1. 3 BCD Semiconductor Manufacturing Limited

LINEAR HALL-EFFECT IC AH49E

Data Sheet

Mechanical Dimensions (Continued)

SOT-23-3 Unit: mm(inch)

2.820(0.111)

3.020(0.119)

2.650(0.104)

2.950(0.116)

0.950(0.037)

TYP

0.300(0.012)

0.500(0.020)

1.500(0.059)

1.700(0.067)

1.800(0.071)

2.000(0.079)

0.300(0.012)

0.600(0.024)

0.100(0.004)

0.200(0.008)

0.000(0.000)

0.150(0.006)

0.900(0.035)

1.300(0.051)

1.450(0.057)

MAX.

0.200(0.008)

0

8°

°

0.685(0.027)

0.985(0.039)

1.300(0.051)

1.600(0.063)

(For Hall IC)

Package Sensor Location

IMPOR TANT NOTICE

BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-

cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility fo r use of any its products for any

particular purpose, nor does BCD Semiconductor Man ufacturing Limited assume any liability arising out of the application or use

of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or

other rights nor the rights of others.

- Wafer Fab

Shanghai SIM-BCD Semiconductor Manufacturing Limited

800, Yi Shan Road, Shanghai 200233, China

Tel: +86-21-6485 1491, Fax: +86-21-5450 0008

BCD Semiconductor Manufacturing Limited

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REGIONAL SALES OFFICE

Shenzhen Office

Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office

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Tel: +86-21-6495 9539, Fax: +86-21-6485 9673

BCD Semiconductor Manufacturing Limited

http://www.bcdsemi.com

BCD Semiconductor Manufacturing Limited

IMPORTANT NOTICE

BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-

cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any

particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use

of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or

other rights nor the rights of others.

- Wafer Fab

Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd.

800 Yi Shan Road, Shanghai 200233, China

Tel: +86-21-6485 1491, Fax: +86-21-5450 0008

MAIN SITE

REGIONAL SALES OFFICE

Shenzhen Office

Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd., Shenzhen Office

Unit A Room 1203, Skyworth Bldg., Gaoxin Ave.1.S., Nanshan District, Shenzhen,

China

Tel: +86-755-8826 7951

Fax: +86-755-8826 7865

Taiwan Office

BCD Semiconductor (Taiwan) Company Limited

4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei,

Taiwan

Tel: +886-2-2656 2808

Fax: +886-2-2656 2806

USA Office

BCD Semiconductor Corp.

30920 Huntwood Ave. Hayward,

CA 94544, USA

Tel : +1-510-324-2988

Fax: +1-510-324-2788

- Headquarters

BCD Semiconductor Manufacturing Limited

No. 1600, Zi Xing Road, Shanghai ZiZhu Science-based Industrial Park, 200241, China

Tel: +86-21-24162266, Fax: +86-21-24162277