BU52078GWZ Datasheet, PDF (1/20 Pages) Rohm – Omnipolar Detection Hall IC

Datasheet
Omnipolar Detection Hall IC
(Dual Outputs for both S and N Pole Polarity Detection)
BU52078GWZ
General Description
The BU52078GWZ 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 (UCSP35L1)
 Polarity Judgment and Separate Output on both
Poles
(OUT1=S-pole Output; OUT2=N-pole Output)
Key Specifications
 VDD Voltage Range:
 Operate Point:
 Hysteresis:
 Period:
 Supply Current (AVG):
 Output Type:
 Operating Temperature Range:
1.65V to 3.6V
±24.0mT(Typ)
1.6mT(Typ)
50ms(Typ)
5.0µA (Typ)
CMOS
-40°C to +85°C
Package
UCSP35L1
W(Typ) x D(Typ) x H(Max)
0.80mm x 0.80mm x 0.40mm
Applications
 Tablets, Smart Phones, Notebook Computers,
Digital Video Cameras, Digital Still Cameras, etc.
Typical Application Circuit, Block Diagram, Pin Configurations and Pin Descriptions
HALL
ELEMENT
×
VDD
B1
TIMING
LOGIC
B2 ^OUT1
GND
VDD
0.1µF
Adjust the bypass capacitor value
as necessary, according to voltage
noise conditions, etc.
The CMOS output terminals
enable direct connection to
the PC, with no external
pull-up resistor required.
A2 OUT2
A1
GND
Pin No.
A1
A2
B1
B2
Pin Name
GND
OUT2
VDD
OUT1
Function
Ground
Output (React to the north pole)
Power supply
Output (React to the south pole)
(TOP VIEW)
A1 A2
(BOTTOM VIEW)
A2 A1
B1 B2
B2 B1
〇Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 14 • 001
〇This product has no designed protection against radioactive rays
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TSZ02201-0M2M0F415030-1-2
24.Aug.2015 Rev.001