參數(shù)資料
型號: AH477AZ4-AG1
廠商: BCD SEMICONDUCTOR MANUFACTURING LTD
元件分類: 磁阻傳感器
英文描述: MAGNETIC FIELD SENSOR-HALL EFFECT, -7-7mT, RECTANGULAR, THROUGH HOLE MOUNT
封裝: GREEN, TO-94, SIP-4
文件頁數(shù): 1/10頁
文件大小: 584K
代理商: AH477AZ4-AG1
SINGLE PHASE HALL EFFECT LATCH
AH477A
1
Oct. 2009 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
Data Sheet
General Description
The AH477A is an integrated Hall sensor with H-
bridged output driver designed for brushless DC motor
applications. The device includes an on-chip Hall sen-
sor for magnetic sensing, an amplifier that amplifies
the Hall voltage, a comparator to provide switching
hysteresis for noise rejection, a bi-directional drivers
for sinking and driving large current load. It also
includes an internal bandgap regulator to provide tem-
perature compensated bias for internal circuits and
allows a wide operating supply voltage range.
Placing the device in a variable magnetic field, if the
magnetic flux density is larger than threshold BOP, the
DO is turned to sink and DOB is turned to drive. This
output state is held until the magnetic flux density
reverses and falls below BRP, then causes DO to be
turned to drive and DOB turned to sink.
The AH477A is available in TO-94 (SIP-4L) package.
Features
On-Chip Hall Sensor
Operating Voltage: 3.5V to 18V
H-Bridge Output Drivers for Single Coil
Internal Bandgap Regulator for Temperature
Compensation
Low Output Switching Current Noise
Operating Temperature: -20oC to 85oC
Low Profile TO-94 (SIP-4L) Package
ESD Rating: 6000V (Human Body Model)
Suitable for PWM Power Supply Control Speed
Applications
Single-coil Brushless DC Motor
Single-coil Brushless DC Fan
Figure 1. Package Type of AH477A
TO-94
相關(guān)PDF資料
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