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ROHM BU52011GUL, BU52011HFV, BU52021HFV, BU52015GUL, BU52025G, BU52051NVX, BD7411G TECHNICAL NOTE

Summary

These high-performance bipolar Hall ICs are essential magnetic switches utilized in consumer electronics, including mobile phones, digital cameras, and white goods. The manual provides comprehensive technical details on unit operation, covering various packaging types (e.g., CSP4, HVSOF5) and supporting a wide range of supply voltages from 1.8V to 5.0V. Designed for engineers building miniature, micropower-operated systems, this IC lineup ensures reliable bipolar detection and precise performance with high ESD resistance.

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Hall IC Series / Hall IC(Latch type)

Bipolar Detection Hall ICs BU52001GUL, BU52011HFV, BU52021HFV, BU52015GUL, BU52025G, BU52051NVX, BD7411G ●Description The bipolar Hall ICs are magnetic switches that can operate both S-and N-pole , upon which the output goes from Hi to Low. In addition to regular single-output Hall ICs, We offers a line up of dual-output units with a reverse output terminal (active High). ●Features 1) Bipolar detection 2) Micropower operation (small current using intermittent operation method)(BD7411G is excluded.) 3) Ultra-compact CSP4 package (BU52001GUL,BU52015GUL) 4) Ultra-Small outline package HVSOF5 (BU52011HFV,BU52021HFV) 5) Ultra-Small outline package SSON004X1216 (BU52051NVXV) 6) Small outline package (BU52025G,BD7411G) 7) Line up of supply voltage

For 1.8V Power supply voltage(BU52011HFV,BU52015GUL,BU52051NVX)

For 3.0V Power supply voltage (BU52001GUL) For 3.3V Power supply voltage (BU52021HFV,BU52025G) For 5.0V Power supply voltage (BD7411G) 8) Dual output type (BU52015GUL) 9) High ESD resistance 8k V(HBM)

●Applications Mobile phones, notebook computers, digital video camera, digital still camera, white goods etc.

●Product Lineup

Supply

Supply Operate

Hysteresis Period current Output

Product name voltage point Package

(m T) (ms) (AVG) type

BU52001GUL 2.40~3.30 +/-3.7 ※ 0.8 50 8.0μ CMOS VCSP50L1 BU52015GUL 1.65~3.30 +/-3.0 ※ 0.9 50 5.0μ CMOS VCSP50L1 BU52051NVX 1.65~3.30 +/-3.0 ※ 0.9 50 5.0μ CMOS SSON004X1216 BU52011HFV 1.65~3.30 +/-3.0 ※ 0.9 50 5.0μ CMOS HVSOF5 BU52021HFV 2.40~3.60 +/-3.7 ※ 0.8 50 8.0μ CMOS HVSOF5 BU52025G 2.40~3.60 +/-3.7 ※ 0.8 50 8.0μ CMOS SSOP5 BD7411G 4.50~5.50 +/-3.4 ※ 0.4 - 2.0m CMOS SSOP5 ※Plus is expressed on the S-pole; minus on the N-pole

June 2008

REV. H

Page Summary Contents For ROHM BU52011GUL, BU52011HFV, BU52021HFV, BU52015GUL, BU52025G, BU52051NVX, BD7411G TECHNICAL NOTE

Page 1 Hall IC Series / Hall IC(Latch type) Bipolar Detection Hall ICs BU52001GUL, BU52011HFV, BU52021HFV, BU52015GUL, BU52025G, BU52051NVX, BD7411G ●Description The bipolar Hall ICs are magnetic switches th...
Page 2 ●Absolute Maximum Ratings BU52001GUL (Ta=25℃) BU52015GUL (Ta=25℃) PARAMETERS SYMBOL LIMIT UNIT PARAMETERS SYMBOL LIMIT UNIT Power Supply Voltage VDD -0.1~+4.5※1 V Power Supply Voltage VDD -0.1~+4.5※3 ...
Page 3 ●Magnetic, Electrical Characteristics BU52001GUL (Unless otherwise specified, VDD=3.0V, Ta=25℃) LIMIT PARAMETERS SYMBOL UNIT CONDITIONS MIN TYP MAX Power Supply Voltage VDD 2.4 3.0 3.3 V Bop S - 3.7 5...
Page 4 BU52015GUL (Unless otherwise specified, VDD=1.80V, Ta=25℃) LIMIT PARAMETERS SYMBOL UNIT CONDITIONS MIN TYP MAX Power Supply Voltage VDD 1.65 1.80 3.30 Bop S - 3.0 5.0 Operate Point m T Bop N -5.0 -3.0...
Page 5 BU52051NVX , BU52011HFV (Unless otherwise specified, VDD=1.80V, Ta=25℃) LIMIT PARAMETERS SYMBOL UNIT CONDITIONS MIN TYP MAX Power Supply Voltage VDD 1.65 1.80 3.30 Bop S - 3.0 5.0 Operate Point m T Bo...
Page 6 BD7411G (Unless otherwise specified, VDD=5.0V, Ta=25℃) LIMIT PARAMETERS SYMBOL UNIT CONDITIONS MIN TYP MAX Power Supply Voltage VDD 4.5 5.0 5.5 V Bop S - 3.4 5.6 Operate Point m T Bop N -5.6 -3.4 Brp ...
Page 7 ●Figure of measurement circuit Bop/Brp Tp 200Ω OUT 100μF Oscilloscope The period is monitored by Oscilloscope. Bop and Brp are measured with applying the magnetic field from the outside. Fig.1 Bop,Brp...
Page 8 ● Technical (Reference) Data BU52001GUL (VDD=2.4~3.3V type) 8.0 IO s] 8.0 TI LU IT [m T] IO s] TI LU IT [m T] VDD=3.0V Bop S Ta = 25°C Bop S VDD=3.0V 4.0 4.0 Brp S Brp S Brp N -2.0 Brp N -2.0 Bop N Bo...
Page 9 BU52021HFV, BU52025G (VDD=2.4~3.6V type) TI LU IT [m T] PE IO s] TI LU IT [m T] LY [m VDD=3.0V Bop S Ta = 25°C Bop S 4.0 4.0 VDD=3.0V Brp S Brp S Brp N Brp N Bop N Bop N SUPPLY VOLTAGE [V] AMBIENT TEM...
Page 10 ●Block Diagram BU52001GUL VDD 0.1μF A1 Adjust the bypass capacitor IC FF value as necessary, according IC TIMING LOGIC LL AT IO to voltage noise conditions, etc. HALL LL AT IO ELEMENT The CMOS output ...
Page 11 BU52051NVX Adjust the bypass capacitor FF value as necessary, according LL AT IO to voltage noise conditions, etc. FF TIMING LOGIC HALL LL AT IO ELEMENT The CMOS output terminals enable direct connect...
Page 12 BU52025G 0.1μF Adjust the bypass capacitor value as necessary, according IC to voltage noise conditions, etc. IC TIMING LOGIC FF FF LL AT IO LL AT IO ELEMENT The CMOS output terminals enable direct co...
Page 13 ●Description of Operations (Micropower Operation) The bipolar detection Hall IC adopts an intermittent operation method to save energy. At startup, the Hall elements, amp, comparator and other detecti...
Page 14 (Magnetic Field Detection Mechanism) Flux Flux Fig.36 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 f...
Page 15 ●Intermittent Operation at Power ON Power ON ag ti lu de si ty [m Startup time Standby time Standby time Startup time Supply current (Intermittent action) Indefinite OUT (No magnetic field present) In...
Page 16 ●Position of the Hall Effect IC(Reference) SSON004X1216 VCSP50L1 HVSOF5 SSOP5 (UNIT:mm) ●Footprint dimensions (Optimize footprint dimensions to the board design and soldering condition) HVSOF5 VCSP50L...
Page 17 ●Operation Notes 1) Absolute maximum ratings Exceeding the absolute maximum ratings for supply voltage, operating conditions, etc. may result in damage to or destruction of the IC. Because the source ...
Page 18 10) Exposure to strong light Exposure to halogen lamps, UV and other strong light sources may cause the IC to malfunction. If the IC is subject to such exposure, provide a shield or take other measure...
Page 19 SSOP5 < Tape/Reel Info > <Dimensions> Tape Embossed carrier tape Quantity 3000pcs Direction TR AX (Correct direction: With reel in the left hand, the 1pin of the product 1. 1± 0. of feed 1...

Manual Details

Brand ROHM
Pages 19
File Size 656.08 KB
Published May 27, 2026
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Frequently Asked Questions

What type of bipolar detection is offered?

The Hall ICs are magnetic switches that operate with both S-pole and N-pole detections.

Which products allow for dual output functionality?

BU52015GUL offers dual output capability, including a reverse output terminal (active High).

What is the required power supply voltage range for all models?

Supply voltages vary by model, ranging from 1.65V up to 5.5V depending on the specific product.

How high is the ESD resistance of these ICs?

The devices offer a high ESD resistance rating of 8kV (HBM).

Do different packages affect operational capacity?

Yes, power dissipation (Pd) is affected by the package and mounting surface details.