AH211 Datasheet PDF - BCD Semiconductor
Part Number | AH211 | |
Description | TWO PHASE HALL EFFECT LATCH | |
Manufacturers | BCD Semiconductor | |
Logo | ||
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General Description
Features
Data Sheet
AH211
The AH211 is an integrated Hall sensor with output
driver and frequency generator designed for electronic
commutation of brush-less DC motor applications. The
device includes an on-chip Hall sensor for magnetic
sensing, an amplifier that amplifies the Hall voltage, a
Schmitt trigger to provide switching hysteresis for
noise rejection, a temperature compensation circuit to
compensate the temperature drift of Hall sensitivity,
two complementary open-collector drivers for sinking
large load current. It also includes an internal band-gap
regulator which is used to provide bias voltage for
internal circuits.
Place the device in a variable magnetic field, while the
magnetic flux density is larger than threshold BOP, DO
will be turned on (low) and DOB (and FG) will be
turned off (high). This output state is held till the mag-
netic flux density reversal falls below BRP causing DO
to be turned off (high) and DOB (and FG) turned on
(low).
· On-Chip Hall Sensor
· 3.5V to 16V Supply Voltage
· 400mA (avg) Output Sink Current
· -20oC to 85oC Operating Temperature
· Built-in FG Output
· Low Profile TO-94 (SIP-4L) Package
· ESD Rating: 600V (Machine Model)
Applications
· Dual-Coil Brushless DC Motor
· Dual-Coil Brushless DC Fan
· Revolution Counting
· Speed Measurement
AH211 is available in TO-94 (SIP-4L) package.
Feb. 2010 Rev. 1. 7
TO-94
Figure 1. Package Type of AH211
BCD Semiconductor Manufacturing Limited
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Data Sheet
TWO PHASE HALL EFFECT LATCH WITH FG OUTPUT
AH211
Electrical Characteristics
(TA=25oC, VCC=14V, unless otherwise specified)
Parameter
Symbol
Test Condition
Min Typ Max Unit
Output Saturation Voltage
VSAT
B>150Gauss, VCC=3.5V,
VDOB=VCC, IDO=100mA
(or B<-150Gauss, VCC=3.5V,
VDO=VCC, IDOB=100mA)
B>150Gauss,
VDOB=VCC, IDO=400mA
(or B<-150Gauss, VDO=VCC,
IDOB=400mA)
1.1 V
1.05 1.3
V
FG Saturation Voltage
FG Leakage Current
Supply Current
Output Rise Time
Output Fall Time
Switch Time Differential
Output Zener Breakdown Voltage
VSATF
IOLF
ICC
tr
tf
∆t
VZ
B<-150Gauss, VDO=VCC,
IFG=20mA
B>150Gauss, VDOB=VCC,
VFG=16V
B>150Gauss, VDOB=VCC,
(or B<-150Gauss, VDO=VCC )
RL=1kΩ, CL=10pF
RL=1kΩ, CL=10pF
RL=1kΩ, CL=10pF
0.35 0.6
V
0.1 10 µA
4 8 mA
3.0 10
0.3 1.0
3.0 10
31
µs
µs
µs
V
Magnetic Characteristics
(TA=25oC)
Parameter
Symbol
Grade
Min
Typ
Max Unit
Operating Point
BOP A 5 30 60 Gauss
B 90 Gauss
Releasing Point
BRP A -60 -30 -5 Gauss
B -90
Gauss
Hysteresis
BHYS
60 Gauss
Feb. 2010 Rev. 1. 7
BCD Semiconductor Manufacturing Limited
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AH211 electronic component. |
Information | Total 11 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ AH211.PDF Datasheet ] |
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