Datasheet APX9141DEE-TR, APX9141DEE-TB, APX9141DEE-PB, APX9141BEE-PB, APX9141ATEE-TR Datasheet (ANPEC)

APX9141

Hall Effect Sensor IC with Reverse Voltage Protection

Features General Description

••

•

On-chip Reverse Voltage Protection

••

•

On-chip Hall Sensor

••

•

Low Operating Supply Voltage : 3 V

••

•

High Output Sinking Capability up to 400mA

••

•

Versatile sensitivity and hysteresis setting

••

•

Reliable and Rugged

••

• 4 pin TO-92M Package

••

Applications

••

• Brushless DC Fan

••

• Revolution Counting

••

• Brushless DC Motor

••

• Speed Measurement

••

Ordering Information

The APX9141 is an integrated Hall Effect Sensor IC designed for electric commutation of DC brushless motor applications. The APX9141 still can operate at as low as 3 volts. The APX9141 is available in low cost TO -92M4 package with 3 different magnetic ranks.

Pin Description

APX9141

1

23

4

Front View

1 : V

DD

2 : DO 3 : DOB 4 : GND

Magnetic Rank

APX9141

Handling Code Temp. Range Package Code Magnetic Rank

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders.

Copyright  ANPEC Electronics Corp. Rev. A.6 - Jan., 2003

°

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APX9141

Block Diagram

Reverse

Voltage

Protection

APX9141

Temperature

V

DD

Gnd

Compensated

Voltage

Regulator

Absolute Maximum Ratings T

Hall

Element

Current

Amplif ier

= 25°C unless otherwise noted

A

Latch

Circuit

Hysteresis

Control

Se n s it iv ity

Control

Output

Buffe r 1

Output

Buffe r 2

Symbol Parameter Rating Unit

T T

V V

I

P T

DD BD

DD

OUT

D

A STG SOL

Supply Voltage 20 V Output Breakdown Voltage 55 V Supply Current 25 mA Output Current – Continuous Hold Current Peak (Start Up)

400 600

800 Maxim um P ow er Dissipation 500 mW Operating Ambient Tem perature -20 to 85 Storage Temperature Range -65 to 150 Soldering Temperature (10 Sec.) 260

DOB

DO

mA

C

°

Electrical Characteristics T

V

I

V

I

Leak

t

∆

Supply Voltage Operating 3 20 V

DD

Output Saturation Voltage VDD=14V, I

SAT

Supply Current VDD=20V, Output Open 20 25 mA

DD

a

Output Leakage Current V

b

Output Rise Time 0.8 5

r

b

Output Fall Time 0.1 1

f

b

Switch Time Different

t

= 25°C, VDD=20V unless otherwise noted

A

=20V, VDD=20V, B<Brp <0.1 10

OUT

V

=14V, RL=820

DD

C

=20pF

L

Note a : No leakage current spike when IC start-up b : use Figure 1

Copyright  ANPEC Electronics Corp. Rev. A.6 - Jan., 2003

APX9141Symbol Parameter Test Condition

Min. Typ. Max.

=400mA, B>Bop 250 500 mV

OUT

Ω

3.5 7

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Unit

A

µ

s

µ

s

µ

s

µ

APX9141

Magnetic Characteristics T

Rank Maximum Operate

Point Bop

= 25°C, VDD=14V unless otherwise noted

A

Maximum Release

Point Brp

Unit

AT +50 -50

A+70 -70 B +100 -100

Gauss

D +150 -150

Note : For 5cm and below DC fan application, grade A/AT device is recommended to avoid magnetic sensitivity problem. For above 5cm DC fan application, grade B device is acceptable for most cases.

Test Information

APX9141

2314

Signal Generator

Scope

R

L2

R

V

DD

L1

C

L2

C

L1

Figure 1 : Switching Circuit for Output Rise Time and Fall Time Measurement

Application Circuit

APX9141

+B

-B 231

4

V

DD

C1

Figure 2 Typical DC brushless fan application circuit

V

DD

L1 L2

C3C2

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APX9141

Typical Characteristics

Supply Current vs. Supply Voltage

25

TA=25°C

20 15 10

5 0

Supply Current (mA)

-5

-10

-30 -20 -10 0 10 20 30 40 50

Supply Voltage (V)

Output Saturation Voltage vs. Output Current

250

200

150

100

50

Output Saturation Voltage (mV)

0

0 100 200 300 400 500

Output Current (mA)

Output Low Voltage vs Ambient Temperature

300

IOUT=400mA VDD=14V

275

250

225

200

Output Low Voltage (mV)

175

150

-20 0 20 40 60 80 100

Temperature (°C)

Supply Current vs Temperature

25

VCC=20V

20

15

10

VCC=3V

VCC=14V

Supply Current (mA)

5

0

-20 0 20 40 60 80 100

Temperature (°C)

Copyright  ANPEC Electronics Corp. Rev. A.6 - Jan., 2003

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APX9141

Typical Characteristics (Cont.)

Magnetic Switch Points vs Supply Voltage

100

80 60 40 20

0

-20

-40

-60

Magnetic Switch Points (G)

-80

-100 0 5 10 15 20

Bop

Brp

Supply Voltage (V)

IOUT=400mA TA=25°C

Magnetic Switch Points vs Temperature

150

IOUT=400mA

DD=14V

100

50

0

-50

-100

Magnetic Switch Points (G)

-150

-20 0 20 40 60 80 100

Bop

Brp

Temperature (°C)

V

Power Dissipation vs. Ambient Temperature

600

500

400

300

200

100

Power Dissipation (mW)

0

0 25 50 75 100 125 150

Ambient Temperature (°C)

Output Breakdown Voltage vs. Current

1

0.9

0.8

0.7

0.6

0.5

0.4

0.3

Output Current (uA)

Output Breakdown Voltage

0.2

0.1 0

0 102030405060

Output Voltage (V)

Copyright  ANPEC Electronics Corp. Rev. A.6 - Jan., 2003

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APX9141

Package Information

TO-92M4

M a rk ing S u rfac e

S

E

JD

Sensitive Area (0.286 0.286m m 2) P o s ition o f H all S en s o r reference to the top-left of package x= 0.85 0.1mm y= 1.95 0.1mm

1.10mm

± ±

IC c h ip

A

1.95mm

C

L

L1

b1

e1

e

×

Min. Max. Min. Max.

A 3.60 3.70 0.141 0.145

b1 0.35 0.41 0.014 0.016

C 0.351 0.411 0.014 0.016 D 5.17 5.27 0.203 0.207

e 3.78 3.84 0.148 0.150

e1 1.24 1.30 0.049 0.051

E 1.50 1.60 0.059 0.063

J 4.04 4.34 0.158 0.170 L 14.0 15.0 0.549 0.588

L1 1.342 1.542 0.053 0.060

S 0.45 0.55 0.018 0.022

Copyright  ANPEC Electronics Corp. Rev. A.6 - Jan., 2003

Millimeters InchesDim

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APX9141

Customer Service

Anpec Electronics Corp.

Head Office :

5F, No. 2 Li-Hsin Road, SBIP, Hsin-Chu, Taiwan, R.O.C. Tel : 886-3-5642000 Fax : 886-3-5642050

Taipei Branch :

7F, No. 137, Lane 235, Pac Chiao Rd., Hsin Tien City, Taipei Hsien, Taiwan, R. O. C. Tel : 886-2-89191368 Fax : 886-2-89191369

Copyright  ANPEC Electronics Corp. Rev. A.6 - Jan., 2003

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