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

APX9141

Hall Effect Sensor IC with Reverse Voltage Protection

Features General Description

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On-chip Reverse Voltage Protection

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On-chip Hall Sensor

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Low Operating Supply Voltage : 3 V

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High Output Sinking Capability up to 400mA

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Versatile sensitivity and hysteresis setting

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Reliable and Rugged

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• 4 pin TO-92M Package

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Applications

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• Brushless DC Fan

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• Revolution Counting

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• Brushless DC Motor

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• Speed Measurement

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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

AT : | Bop , Brp | < 50 Gauss
A : | Bop , Brp | < 70 Gauss
B : | Bop , Brp | < 100 Gauss
D : | Bop , Brp | < 150 Gauss
Package Code
E : TO - 92M4
Temp. Range
E : -20 to 85 C
Handling Code
PB : Plastic Bag TB : Tape & Box
TR : Tape & Reel

°

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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

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

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

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

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