EFFECT LATCH. AH266 Datasheet

AH266 LATCH. Datasheet pdf. Equivalent

AH266 Datasheet
Recommendation AH266 Datasheet
Part AH266
Description HIGH VOLTAGE HALL EFFECT LATCH
Feature AH266; Data Sheet HIGH VOLTAGE HALL EFFECT LATCH General Description The AH266 is an integrated Hall sensor.
Manufacture BCD Semiconductor
Datasheet
Download AH266 Datasheet




BCD Semiconductor AH266
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



BCD Semiconductor AH266
HIGH VOLTAGE HALL EFFECT LATCH
Pin Configuration
Z4 Package
(TO-94)
4
3
2
1
GND
DOB
DO
VCC
Figure 2. Pin Configuration of AH266 (Top View)
Data Sheet
AH266
Pin Description
Pin Number
1
2
3
4
Pin Name
VCC
DO
DOB
GND
Supply voltage
Output 1
Output 2
Ground
Function
Feb. 2007 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
2



BCD Semiconductor AH266
HIGH VOLTAGE HALL EFFECT LATCH
Functional Block Diagram
VCC
1
Regulator
Over Temperature
Protection
Hall
Sensor
Amplifier
Schmitt
Trigger
Output
Driver
Data Sheet
AH266
2
DO
3
DOB
4
GND
Figure 3. Functional Block Diagram of AH266
Ordering Information
AH266 -
Circuit Type
Package
Z4: TO-94 (SIP-4L)
E1: Lead Free
Magnetic Characteristics
A: 10 to 70Gauss
B: 100Gauss
Package
TO-94
Temperature Range
-20 to 85 oC
Part Number
AH266Z4-AE1
AH266Z4-BE1
Marking ID
AH266Z4-E1
AH266Z4-E1
Packing Type
Bulk
Bulk
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Feb. 2007 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
3







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