OCH147H Sensor Datasheet

OCH147H Datasheet, PDF, Equivalent


Part Number

OCH147H

Description

Hall Effect Latched Sensor

Manufacture

Orient Chip

Total Page 2 Pages
Datasheet
Download OCH147H Datasheet


OCH147H
OCH147H
Hall Effect Latched Sensor
General Description
The OCH147H is an integrated Hall effect latched sensor designed for electronic commutation of brush-less DC
motor applications. The device using HV BCD process includes an on-chip Hall voltage generator for magnetic
sensing, a comparator that amplifiers the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise
rejection, and an open-collector output. An internal band-gap regulator is used to provide temperature compensated
supply voltage for internal circuits and allows a wide operating supply range.
If a magnetic flux density larger than threshold Bop,output is turned on(low).The output state is held until a
magnetic flux density reversal falls below Brp causing OUT to be turned off(high).
Features
Wide operating voltage range: 3.3V~26V
Operating temperature range: -40°C ~+150°C
Temperature compensation
Reverse polarity protection
Open-Drain pre-driver
Package: SOT23-3L
Applications
Rotor Position Sensing
Brush-less DC Motor
Speed measurement
Revolution counting
Pin Configuration
(Top View)
3
GND
Name
VDD
Gnd
Output
No.
1
3
2
Application Circuit
VDD
1
Status
P
P
O
OUTPUT
2
Description
IC Power Supply
IC Ground
It is low state during the S magnetic field
3
OCH147H
1
VDD
Cin RL 2.2K
2
Output
CL 20pF
Figure 1, application circuit of OCH147
Note: CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 0.1~1uF.
If the VCC power supply is clean, the CIN can be cancelled.
Page 1-2
Ver. 1.2 Feb .27, 2018
源于灿瑞 磁传天下

OCH147H
OCH147H
Hall Effect Latched Sensor
Ordering Information
Part Number Package Type Packing Qty BOP (Gauss) BRP(Gauss) Temperature Eco Plan Lead
OCH147HWAF SOT23-3L
3000pcs
25(Typ.) -25(Typ.) -40 ~ 150ROHS Cu
注:想进一步了解产品咨询,请直接点击申请样品。我们会第一时间联系您!谢谢!
Page 2-2
Ver. 1.2 Feb .27, 2018
源于灿瑞 磁传天下


Features WWW.ORIENT-CHIP.COM OCH147H Hall Effect Latched Sensor ◼ General Descriptio n The OCH147H is an integrated Hall eff ect latched sensor designed for electro nic commutation of brush-less DC motor applications. The device using HV BCD p rocess includes an on-chip Hall voltage generator for magnetic sensing, a comp arator that amplifiers the Hall voltage , and a Schmitt trigger to provide swit ching hysteresis for noise rejection, a nd an open-collector output. An interna l band-gap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wid e operating supply range. If a magnetic flux density larger than threshold Bop ,output is turned on(low).The output st ate is held until a magnetic flux densi ty reversal falls below Brp causing OUT to be turned off(high). ◼ Features ⚫ Wide operating voltage range: 3.3V~ 26V ⚫ Operating temperature range: -4 0°C ~+150°C ⚫ Temperature compensat ion ⚫ Reverse polarity protection ⚫ Open-Drain pre-driver .
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