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| 型号： | AH278 |
| 厂商： | BCD Semiconductor Manufacturing Limited |
| 英文描述： | HIGH VOLTAGE HALL EFFECT LATCH |
| 中文描述： | 高压霍尔效应锁存 |
| 文件页数： | 1/11页 |
| 文件大小： | 195K |
| 代理商： | AH278 |
HIGH VOLTAGE HALL EFFECT LATCH
AH278
1
Feb. 2007 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
Data
Sheet
General Description
The AH278 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 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 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 B
OP
, 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 B
RP,
then causes DO to be turned high (off) and DOB
turned low (on).
AH278 is available in TO-94 (SIP-4L) package.
Features
·
·
·
·
On-Chip Hall Sensor
4V to 30V Supply Voltage
500mA (avg) Output Sink Current
Build in Protection Diode for Reverse Power
Connecting
-20
o
C to 85
o
C 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
Figure 1. Package Type of AH278
TO-94
相关PDF资料 |
PDF描述 |
|---|---|
| AH278_07 | HIGH VOLTAGE HALL EFFECT LATCH |
| AH278Z4-AE1 | HIGH VOLTAGE HALL EFFECT LATCH |
| AH278Z4-BE1 | HIGH VOLTAGE HALL EFFECT LATCH |
| AHK1117XPY-ADJ-B1 | Circular Connector; No. of Contacts:8; Series:LJT06R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:13; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:13-8 |
| AHK1117XMY-ADJ-B1 | Circular Connector; No. of Contacts:10; Series:LJT06R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:13; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:13-98 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AH278_07 | 制造商:BCDSEMI 制造商全称:BCD Semiconductor Manufacturing Limited 功能描述:HIGH VOLTAGE HALL EFFECT LATCH |
| AH278Z4-AE1 | 制造商:BCDSEMI 制造商全称:BCD Semiconductor Manufacturing Limited 功能描述:HIGH VOLTAGE HALL EFFECT LATCH |
| AH278Z4-BE1 | 制造商:BCDSEMI 制造商全称:BCD Semiconductor Manufacturing Limited 功能描述:HIGH VOLTAGE HALL EFFECT LATCH |
| AH278Z4-E1 | 制造商:BCDSEMI 制造商全称:BCD Semiconductor Manufacturing Limited 功能描述:HIGH VOLTAGE HALL EFFECT LATCH |
| AH28 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
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