BU52012HFV-TR Rohm Semiconductor, BU52012HFV-TR Datasheet - Page 14

• Manufacturer Part Number: BU52012HFV-TR
• Description: Industrial Hall Effect / Magnetic Sensors MONO DETECTION SENSOR; 1.65-3.3V
• Manufacturer: Rohm Semiconductor
• Series: -r
• Type: Unipolar Switchr

Specifications of BU52012HFV-TR

• Operational Type: Unipolar
• Operating Supply Voltage: 1.8 V or 2.5 V
• Current Rating: 3.5 uA
• Operating Point Min/max: 3 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: Unipolar
• 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: 5.5µA
• Current - Output (max): ±0.5mA
• Output Type: Digital, Open Collector
• Features: Regulated Voltage
• 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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BU52002GUL,BU52003GUL,BU52012NVX,BU52012HFV,BU52013HFV
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BU52002GUL,BU52012HFV
BU52002GUL, BU52012HFV detects and outputs for the S-pole only. Since it is unipolar, it does not recognize the N-pole.
BU52003GUL, BU52013HFV
BU52003GUL, BU52013HFV detects and outputs for the N-pole only. Since it is unipolar, it does not recognize the S-pole.
The unipolar 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.
N-Pole
S-Pole
High
Low
High
Bop N
N-Pole
S
N
S
N
N-Pole
S
S
Flux
Flux
Brp N
Fig.42
Fig.43
Magnetic flux density [mT]
Magnetic flux density [mT]
S-Pole Detection
N-Pole Detection
14/19
High
High
OUT [V]
OUT [V]
0
0
N
S
N
S
N
N
Brp S
Flux
Flux
S-Pole
S-Pole
Bop S
High
Technical Note
2010.08 - Rev.C
Low
High
B
B