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PDF AH266 Data sheet ( Hoja de datos )
| Número de pieza | AH266 | |
| Descripción | HIGH VOLTAGE HALL EFFECT LATCH | |
| Fabricantes | BCD Semiconductor | |
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HIGH VOLTAGE HALL EFFECT LATCH
General Description
Features
Data Sheet
AH266
The AH266 is an integrated Hall sensor with output
driver 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 and
two complementary darlington open-collector drivers
for sinking large load current. It also includes an inter-
nal band-gap regulator which is used to provide bias
voltage for internal circuits and allows a wide
operating supply voltage ranges.
Placing the device in a variable magnetic field, if the
magnetic flux density is larger than threshold BOP, the
pin DO will be turned low (on) and pin DOB will be
turned high (off). This output state is held until the
magnetic flux density reverses and falls below BRP,
then causes DO to be turned high (off) and DOB
turned low (on).
· On-Chip Hall Sensor
· 4V to 30V Supply Voltage
· 400mA (avg) Output Sink Current
· Build in Protection Diode for Reverse Power
Connecting
· -20oC to 85oC Operating Temperature
· Low Profile TO-94 (SIP-4L) Package
· Build in Over Temperature Protection Function
· ESD Rating: 300V(Machine Model)
Applications
· 12V/24V Dual-Coil Brushless DC Motor/Fan
· Power Supply and Switchboard
· Communications Facilities
· Industrial Equipment
AH266 is available in TO-94 (SIP-4L) package.
www.DataSheet4U.com
Feb. 2007 Rev. 1. 1
TO-94
Figure 1. Package Type of AH266
BCD Semiconductor Manufacturing Limited
1
1 page  
HIGH VOLTAGE HALL EFFECT LATCH
Electrical Characteristics
(TA=25oC, VCC=24V, unless otherwise specified)
Parameter
Symbol
Test Condition
Low Supply Voltage
Output Saturation Voltage
Output Saturation Voltage
Output Leakage Current
Supply Current
Output Rise Time
Output Fall Time
Switch Time Differential
Output Zener Breakdown Voltage
VCE
VSAT1
VSAT2
IOL
ICC
tr
tf
∆t
VZO
VCC=5V, IO=100mA
IO=500mA
IO=300mA
VDO, VDOB=24V
VCC=24V, Output Open
RL=820Ω, CL=20pF
RL=820Ω, CL=20pF
RL=820Ω, CL=20pF
Data Sheet
AH266
Min Typ Max Unit
0.8 1.1
V
1.1 1.5
V
0.9 1.25
V
0.1 10 µA
3.5 6 mA
3.0 10
µs
0.3 1.5
µs
3.0 10
µs
61 V
Magnetic Characteristics
(TA=25oC)
Parameter
Symbol
Grade
Min
Typ
Max Unit
Operating Point
BOP A
B
10
70 Gauss
100 Gauss
Releasing Point
BRP A -70
B -100
-10 Gauss
Gauss
Hysteresis
BHYS
80 Gauss
VDO (V)
Off-state
High
Turn off
BHYS
Turn on
VSAT
N
Feb. 2007 Rev. 1. 1
Low
On-state
BRP 0 BOP
Magnetic Flux Density (Gauss)
S
BCD Semiconductor Manufacturing Limited
5
5 Page 
http://www.bcdsemi.com
IMPORTANT NOTICE
BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-
cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any
particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use
of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or
other rights nor the rights of others.
MAIN SITE
BCD Semiconductor Manufacturing Limited
- Wafer Fab
Shanghai SIM-BCD Semiconductor Manufacturing Limited
800, Yi Shan Road, Shanghai 200233, China
Tel: +86-21-6485 1491, Fax: +86-21-5450 0008
BCD Semiconductor Manufacturing Limited
- IC Design Group
Advanced Analog Circuits (Shanghai) Corporation
8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China
Tel: +86-21-6495 9539, Fax: +86-21-6485 9673
REGIONAL SALES OFFICE
Shenzhen Office
Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office
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Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China
Tel: +86-755-8826 7951
Fax: +86-755-8826 7865
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BCD Semiconductor (Taiwan) Company Limited
4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei,
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Tel: +886-2-2656 2808
Fax: +886-2-2656 2806
USA Office
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30920 Huntwood Ave. Hayward,
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Tel : +1-510-324-2988
Fax: +1-510-324-2788
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet AH266.PDF ] | |
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