Latch Hall. BU52040HFV Datasheet

BU52040HFV Hall. Datasheet pdf. Equivalent

Part BU52040HFV
Description Bipolar Latch Hall
Feature Hall IC Series Bipolar Latch Hall IC BU52040HFV No.10045EBT05 ●Description BU52040 Hall Effect IC .
Manufacture ROHM
Total Page 15 Pages
Datasheet
Download BU52040HFV Datasheet



BU52040HFV
Hall IC Series
Bipolar
Latch Hall IC
BU52040HFV
No.10045EBT05
Description
BU52040 Hall Effect IC for wheel keys / trackballs is designed to detect a switch in magnetic field from N to S (or vice versa)
and maintain its detection result on the output until the next switch. Output is pulled low for S-pole fields and high for N-pole
fields. This IC is ideal for detecting the number of shaft rotations inside of a wheel key, trackball, or other similar applications.
Using two ICs can also enable detection of rotation direction.
Features
1) Ideally suited for wheel keys or trackballs
2) Micropower operation (small current consumption via intermittent operation method)
3) Ultra-small outline package
4) Supports 1.8 V supply voltage
5) High ESD resistance: 8kV (HBM)
Applications
Wheel keys (zero-contact selection dials), trackballs, and other interface applications.
Product Lineup
Product name
Supply voltage
(V)
Operation point Hysteresis
(mT)
(mT)
BU52040HFV 1.653.30
+/-3.0
Plus is expressed on the S-pole; minus on the N-pole
6.0
Period
(µs)
500
Supply current
(AVG)
(µA)
200
Output type
CMOS
Absolute Maximum Ratings
BU52040HFV (Ta = 25°C)
Parameters
Symbol
Limit
Power Supply Voltage
VDD -0.14.51
Output Current
Power dissipation
IOUT ± 0.5
Pd 5362
Operating Temperature Range
Topr -40+85
Storage Temperature Range
Tstg -40+125
1. Not to exceed Pd
2. Reduced by 5.36mW for each increase in Ta of 1over 25(mounted on 70mm×70 mm×1.6mm Glass-epoxy PCB)
Package
HVSOF5
Unit
V
mA
mW
°C
°C
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/12
2010.01 - Rev.B



BU52040HFV
BU52040HFV
Technical Note
Magnetic, Electrical Characteristics
BU52040HFV (Unless otherwise specified, VDD=1.80V, Ta=25°C)
Parameters
Symbol
Min
Limit
Typ
Power Supply Voltage
VDD 1.65 1.80
Max
3.30
Unit
V
Conditions
Operation point
Bop 1.0 3.0 5.0 mT
Release Point
Brp -5.0 -3.0 -1.0 mT
Hysteresis
Bhys
-
6.0
-
mT
Period
Output High Volage
Output Low Voltage
Supply Current 1
Supply Current
During Startup Time 1
Supply Current
During Standby Time 1
Tp -
VOH VDD - 0.2
VOL -
IDD1(AVG)
-
IDD1(EN)
-
IDD1(DIS)
-
500
-
-
200
3.0
2.0
1200
-
0.2
300
-
-
µs
V
B < Brp3
IOUT =-0.5mA
V
Bop < B3
IOUT =+0.5mA
µA VDD =1.8V, Average
mA
VDD =1.8V,
During Startup Time Value
µA
VDD =1.8V,
During Standby Time Value
Supply Current 2
IDD2(AVG)
-
300 450
µA VDD=2.7V, Average
Supply Current
During Startup Time 2
IDD2(EN)
-
4.5
-
mA
VDD=2.7V,
During Startup Time Value
Supply Current
During Standby Time 2
IDD2(DIS)
-
3.5
-
µA
VDD=2.7V,
During Standby Time Value
3. B = Magnetic flux density
1mT=10Gauss
Positive (“+”) polarity flux is defined as the magnetic flux from south pole which is direct toward to the branded face of the sensor.
After applying power supply, it takes one cycle of period (TP) to become definite output.
Radiation hardiness is not designed.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
2/12
2010.01 - Rev.B





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