〇Product structure : Silicon monolithic integrated circuit 〇This product has no designed protection against radioactive rays

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TSZ02201-0M2M0F415010-1-2

© 2015 ROHM Co., Ltd. All rights reserved.

25.Jul.2016 Rev.002

TSZ22111

• 14 • 001

www.rohm.com

Omnipolar Detection Hall IC

(Dual Outputs for both S and N Pole Polarity Detection)

BU52177GXZ

General Description

The BU52177GXZ is omnipolar Hall IC incorporating a

polarity determination circuit that enables separate

operation (output) of both the South and North poles.

This Hall IC product can be in tablets, smart phones, and

other applications in order to detect open and close of

the cover.

And this Hall IC product can be in digital video cameras

and other applications involving display panels in order to

detect the front/back location or determine the rotational

direction of the panel.

Features



Omnipolar Detection (Polarity Detection for both S

and N Poles with Separate, Dual Outputs)



Micro Power Operation (Small Current Using

Intermittent Operation Method)



Ultra-compact CSP4 Package (XCSP30L1)



Polarity Judgment and Separate Output on both

Poles

(OUT1=S-pole Output; OUT2=N-pole Output)

Applications



Tablets, Smart Phones, Notebook Computers,

Digital Video Cameras, Digital Still Cameras, etc.

Key Specifications



1.65V to 3.6V



Operate Point:

±15.0mT(Typ)



Hysteresis:

0.9mT(Typ)



Period:

50ms(Typ)



Supply Current (AVG):

5.0µA (Typ)



Output Type:

CMOS



Operating Temperature Range:

-40°C to +85°C

Package

W(Typ) x D(Typ) x H(Max)

XCSP30L1

0.65mm x 0.65mm x 0.33mm

Typical Application Circuit, Block Diagram, Pin Configurations and Pin Descriptions

Pin No.

Pin Name

Function

A1

GND

Ground

A2

OUT2

Output (React to the north pole)

B1

Power supply

B2

OUT1

Output (React to the south pole)

(BOTTOM VIEW)

(TOP VIEW)

A1

B2

B1

A2

A2

B2

B1

A1

The CMOS output terminals

enable direct connection to

the PC, with no external

pull-up resistor required.

Adjust the bypass capacitor value

as necessary, according to voltage

noise conditions, etc.

0.1µF

GND

×

OUT1

OUT2

GND

HALL

ELEMENT

B2

A1

A2

B1

TIMING

LOGIC

Datasheet