Copyright  ANPEC Electronics Corp.
Rev. A.3 - Apr., 2001
APX9031
www.anpec.com.tw1
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.
Hall Effect Sensor IC
Features General Description
The APX9031 is an integrated Hall Effect Sensor IC
designed for electric commutation of DC brushless
motor applications. Even with a reverse voltage pro-
tection diode, the APX9031 still can operate at as
low as 3 volts. The APX9031 is available in low cost
TO-92M3 and SOT-89 packages with 3 different
magnetic ranks.
Pin Description
1 : V
DD
23
2 : GND
1
3 : OUTPUT
Ordering Information
Front View
• On-chip Hall Sensor
• Low Operating Supply Voltage : 3 V with Re-
verse Voltage Protection
• Versatile sensitivity and hysteresis setting
• Reliable and Rugged
• TO-92M3 and SOT-89 packages
Applications
• Brushless DC Motor
• Brushless DC Fan
• Speed Measurement
• Revolution Counting
APX9031
Magnetic Rank
Handling Code
Temp. Range
Package Code
Magnetic Rank
A : l Bop , Brp l < 70Gauss
B : l Bop , Brp l < 100 Gauss
C : l Bop , Brp l < 150 Gauss
Package Code
E : TO - 92M
D : SOT - 89
Temp. Range
E: - 20 to 85 C
Handling Code
PB : Plastic Bag
TR : Tape & Reel

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