BU52011HFV-TR Rohm Semiconductor, BU52011HFV-TR Datasheet - Page 24

• 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

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

© 2010 ROHM Co., Ltd. All rights reserved.
BU52001GUL,BU52011HFV,BU52021HFV,BU52015GUL,BU52025G,BU52051NVX,
BU52053NVX,BU52054GWZ,BU52055GWZ,BU52056NVX,BU52061NVX,BD7411G
www.rohm.com
(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
Bop N
S
N
Magnetic
Flux
S
N-Pole
N
S
Magnetic
Flux
S
Brp N
Magnetic flux density [mT]
High
Fig.67
24/31
OUT [V]
Fig.68
0
S
N
S
N
Brp S
Magnetic
Flux
S
S-Pole
Bop S
N
Magnetic
Flux
High
N
Technical Note
2010.12 - Rev.F
Low
B