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PDF AH41 Data sheet ( Hoja de datos )
| Número de pieza | AH41 | |
| Descripción | BIPOLAR HALL-EFFECT POSITION SENSORS | |
| Fabricantes | BCD | |
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Data Sheet
BIPOLAR HALL-EFFECT POSITION SENSORS
AH41
General Description
The AH41 is an integrated Hall-effect latched sensor
designed for electronic commutation of brushless DC
motor applications. The device includes an on-chip
Hall voltage generator for magnetic sensing, a
comparator that amplifiers the Hall voltage, and a
Schmitt to provide switching hysteresis for noise
rejection and open-collector output. An internal
bandgap regulator is used to provide temperature
compensated supply voltage for internal circuits and
allows a wide operating supply range.
A north pole of sufficient strength will turn the output
ON. In the absence of a magnetic field, the output is
OFF.
This IC is available in TO-92S-3 package.
Features
• On-chip Hall Sensor
• Wide Operating Voltage Range: 4V to 24V
• Internal Bandgap Regulator for Temperature
Compensation
• Maximum Output Sink Current: 50mA
• Low Profile TO-92S-3
• Operating Temperature: -40˚C to 150˚C
• ESD Rating: 2000V (Human Body Model)
300V (Machine Model)
Application
• Brushless DC Motor
Nov 2010 Rev. 1. 2
TO-92S-3
Figure 1. Package Type of AH41
BCD Semiconductor Manufacturing Limited
1
1 page  
Data Sheet
BIPOLAR HALL-EFFECT POSITION SENSORS
AH41
Electrical Characteristics
VCC =12V, TA =25°C, unless otherwise specified.
Parameter
Supply Voltage
Supply Current
Output Leakage Current
Output Saturation Voltage
Rise Time
Fall Time
Symbol
VCC
ICC
IOL
VSAT
tr
tf
Conditions
VCC=4V to 24V
VCE=14V
IOUT =20mA
RL=820Ω
CL=20pF
RL=820Ω
CL=20pF
Min Typ Max Unit
4 24 V
6 9 mA
0.1 10 µA
110 300 mV
200 ns
100 ns
Magnetic Characteristics (TA=25°C)
Parameter
Operating Point
Releasing Point
Hysteresis
Symbol
BOP
BRP
BHYS
Grade
A
B
A
B
Min
30
5
-75
-105
80
VOUT
Typ Max
75
105
-30
-5
110 140
Unit
Gauss
Gauss
Gauss
High
Turn off
BHYS
Turn on
Nov 2010 Rev. 1. 2
VSAT
BRP
N
0
BOP
S
Low
Magnetic Flux Density (Gauss)
BCD Semiconductor Manufacturing Limited
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet AH41.PDF ] | |
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