APX9132 查看數據表（PDF） - Anpec Electronics

零件编号

产品描述 (功能)

比赛名单

APX9132

Hall Effect Micro Switch IC

Anpec Electronics 

APX9132

Application Information

It is strongly recommended that an external bypass ca-

pacitor be connected (is close to the Hall sensor) be-

tween the supply and ground of the device to reduce both

external noise and noise generated by the chopper-sta-

bilization technique. This is especially true due to the

relatively high impedance of battery supplies.

Pole-independent

The pole-independent sensing technique allows for

operation with either a north or south pole magnet

orientation, enhancing the manufacturability of the device.

The state-of-the-art technology provides the same output

polarity for either pole in presence.

Awake & Sleep

Internal awake & sleep timing block circuit activates the

sensor for 180 µs and deactivates it for the remainder of

the period (60 ms). A short “awake” time allows for stabi-

lization prior to the sensor sampling and data latching on

the falling edge of the timing pulse. While in sleep cycle,

the output is latched in its previous state.

Chopper Stabilized Technique

The chopper stabilized technique cancels the mismatch-

ing of the hall element, the amplifier offset voltage and

temperature sensitive drift by the dynamic offset cancel-

lation and switched capacitor technique. This technique

produces devices have an extremely stable Hall output

voltage, therefore, the magnetic switch points are stable.

Copyright © ANPEC Electronics Corp.

8

Rev. A.4 - Apr., 2009

www.anpec.com.tw

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