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OCH183
Hall Effect Latched Sensor
General Description
The OCH183 is an integrated Hall effect latched sensor designed for electronic commutation of brush-less DC
motor applications. The device using High Voltage 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.
Features
Wide operating voltage range: 2.5V~26V
Operating temperature range: -40°C ~+125°C
Temperature compensation
Reverse polarity protection
Integrated 10KΩ pull-up resistor
Package: SIP-3LSOT23-3L
Applications
Rotor Position Sensing
Brush-less DC Motor
Speed measurement
Revolution counting
Pin Configuration
Name
VDD
GND
OUTPUT
SIP-3L
1
2
SIP-3L
No.
SOT23-3L
1
3
32
(Top View)
OUTPU
T
GND
VDD
3
GND
VDD
OUTPUT
12
SOT23-3L
Status
P
P
O
Description
IC Power Supply
IC Ground
SIP-3L:It is low state during the S magnetic field
SOT23-3L: It is low state during the N magnetic field
Application Circuit
OCH183
123
VDD
CIN=0.1uF~1uF
GND
OUTPUT
CL=20PF
GND
3
OCH183N
VDD
1
CIN=0.1uF~1uF
2
OUTPUT
CL=20PF
Figure 1, application circuit
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.
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Ver. 1.1 Feb .27, 2018
源于灿瑞 磁传天下

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OCH183
Hall Effect Latched Sensor
Ordering Information
Part Number Package Type Packing Qty BOP (Gauss) BRP(Gauss) Temperature Eco Plan Lead
OCH183ME
SIP-3L
1000pcs
28(Typ.) -28(Typ.) -40 ~ 125ROHS Cu
OCH183NWAE SOT23-3L
3000pcs
28(Typ.) -28(Typ.) -40 ~ 125ROHS Cu
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Page 2-2
Ver. 1.1 Feb .27, 2018
源于灿瑞 磁传天下