OCH141 Datasheet: Bipolar Hall Effect Position Sensor

OCH141 Bipolar Hall Effect Position Sensor Datasheet

Part Number OCH141
Description Bipolar Hall Effect Position Sensor
Manufacture Orient Chip
Total Page 2 Pages
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Bipolar Hall Effect Position Sensor For High Temperature
General Description
The OCH141 is an integrated Hall Effect latched sensor designed for electronic commutation of brush-less DC
motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that
amplifiers the Hall voltage, and a Schmitt to provide switching hysteresis for noise rejection, and open-collector
An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits
and allows a wide operating supply range.
In the absence of a magnetic field, the output pin is “OFF” (High). A north pole of sufficient strength will turn the
output “ON” (Low). While the magnetic flux density (B) is larger than threshold Bop, the output pin is “ON”. If B
removed toward Brp, the output pin is latched “ON” state prior to B < Brp. When B < Brp, the output pin goes into
OFF” state.
Bipolar Hall Effect Latch Sensor
Wide operating voltage range: 3.8V~30V
Open Collector Pre-Driver
Maximum output sink current: 30mA
Chip Power Reverse-Connection Protection
Operating Temperature: -40~+150
Package: SIP3L
Rotor Position Sensing
Current Switch
RPM Detection
Brush-less DC Motor
Brush-less DC Fan
Revolution counting
Speed measurement
Pin Configuration
(Top View)
3 Output
Name No. Status
2 Gnd
Vcc 1
P Input Power Supply
1 Vcc
P Ground
O Output Stage of Open Collector
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Rev. 1.7 May .24, 2018
源于灿瑞 磁传天下


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