BU52011HFV-TR Rohm Semiconductor, BU52011HFV-TR Datasheet - Page 14

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BU52011HFV-TR

Manufacturer Part Number
BU52011HFV-TR
Description
Industrial Hall Effect / Magnetic Sensors ULTRA SMALL DETECT SENSOR; 1.65-3.3V
Manufacturer
Rohm Semiconductor
Series
-r
Type
Omnipolar Switchr
Datasheets

Specifications of BU52011HFV-TR

Operational Type
Bipolar
Operating Supply Voltage
1.8 V or 2.5 V
Current Rating
5 uA
Operating Point Min/max
- 5 mT to 5 mT
Mounting Style
SMD/SMT
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Maximum Output Current
0.5 mA
Package / Case
HVSOF
Hall Effect Type
Bipolar
Output Current
500µA
Power Dissipation Pd
536mW
Sensor Case Style
HVSOF
No. Of Pins
5
Supply Voltage Range
1.65V To 3.3V
Operating Temperature Range
-40°C To +85°C
Svhc
No SVHC
Sensing Range
±5mT Trip, ±0.6mT Release
Voltage - Supply
1.65 V ~ 3.3 V
Current - Supply
8µA
Current - Output (max)
±0.5mA
Output Type
Digital, Open Collector
Features
-
Operating Temperature
-40°C ~ 85°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant

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(Magnetic Field Detection Mechanism)
The bipolar detection Hall IC detects magnetic fields running perpendicular to the top surface of the package. There is an inverse
relationship between magnetic flux density and the distance separating the magnet and the Hall IC: when distance increases
magnetic density falls. When it drops below the operate point (Bop), output goes HIGH. When the magnet gets closer to the IC
and magnetic density rises, to the operate point, the output switches LOW. In LOW output mode, the distance from the magnet to
the IC increases again until the magnetic density falls to a point just below Bop, and output returns HIGH. (This point, where
magnetic flux density restores HIGH output, is known as the release point, Brp.) This detection and adjustment mechanism is
designed to prevent noise, oscillation and other erratic system operation.
Low
The Hall IC cannot detect magnetic fields that run horizontal to the package top layer.
Be certain to configure the Hall IC so that the magnetic field is perpendicular to the top layer.
High
S
N
Bop N
S
Flux
N-Pole
N
S
S
Flux
Brp N
Magnetic flux density [mT]
High
Fig.36
14/20
OUT [V]
Fig.37
0
S
N
S
N
Brp S
Flux
S
S-Pole
Bop S
N
Flux
High
N
Low
B

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