A3054KU 반도체 회로 부품 판매점
MULTIPLEXED TWO-WIRE HALL-EFFECT SENSOR ICs
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 Allegro MicroSystems |
3054
MULTIPLEXED
TWO-WIRE
3054
HALL-EFFECT SENSOR ICs
LOGIC
12
3
Dwg. PH-005
Pinning is shown viewed from branded side.
ABSOLUTE MAXIMUM RATINGS
at TA = +25°C
Supply Voltage, VBUS . . . . . . . . . . . . . . 18 V
Magnetic Flux Density, B . . . . . . . Unlimited
Operating Temperature Range, TA
A3054KU . . . . . . . . . . . -40°C to +125°C
A3054SU . . . . . . . . . . . . -20°C to +85°C
Storage Temperature Range,
TS . . . . . . . . . . . . . . . . . -55°C to +150°C
Package Power Dissipation,
PD . . . . . . . . . . . . . . . . . . . . . . . 635 mW
MULTIPLEXED TWO-WIRE
HALL-EFFECT SENSOR ICs
The A3054KU and A3054SU Hall-effect sensors are digital mag-
netic sensing ICs capable of communicating over a two-wire power/
signal bus. Using a sequential addressing scheme, the device re-
sponds to a signal on the bus and returns the diagnostic status of the
IC, as well as the status of each monitored external magnetic field.
As many as 30 sensors can function on the same two-wire bus. This
IC is ideal for multiple sensor applications where minimizing the wiring
harness size is desirable or essential.
Each device consists of high-resolution bipolar Hall-effect switch-
ing circuitry, the output of which drives high-density CMOS logic
stages. The logic stages decode the address pulse and enable a
response at the appropriate address. The combination of magnetic-
field or switch-status sensing, low-noise amplification of the Hall-
transducer output, and high-density decoding and control logic is made
possible by the development of a new sensor DABiC™ (digital analog
bipolar CMOS) fabrication technology. The A3054SU is an improved
replacement for the original UGN3055U.
These unique magnetic sensing ICs are available in two tempera-
ture ranges; the A3054SU operates within specifications between
-20°C and +85°C, while the A3054KU is rated for operation between
-40°C and +125°C. Alternative magnetic and temperature specifica-
tions are available on special order. Both versions are supplied in
0.060" (1.54 mm) thick, three-pin plastic SIPs. Each device is clearly
marked with a two-digit device address (XX).
FEATURES
s Complete Multiplexed Hall-Effect ICs with
Simple Sequential Addressing Protocol
s Allows Power and Communication Over a
Two-Wire Bus (Supply/Signal and Ground)
s Up to 30 Hall-Effect Sensors Can Share a Bus
s Sensor Diagnostic Capabilities
s Magnetic-Field or Switch-Status Sensing
s Low Power of DABiC Technology Favors
Battery-Powered and Mobile Applications
s Ideal for Automotive, Consumer, and Industrial Applications
Always order by complete part number:
Part Number Operating Temperature Range
A3054KU-XX -40°C to +125°C
A3054SU-XX -20°C to +85°C
where XX = address (01, 02, … 29, 30).
3054
MULTIPLEXED
TWO-WIRE
HALL-EFFECT SENSOR ICs
ELECTRICAL CHARACTERISTICS over operating temperature range.
Characteristic
Power Supply Voltage
Signal Current
Quiescent Current
Address Range
Clock Thresholds
Max. Clock Frequency*
Address LOW Voltage
Address HIGH Voltage
Reset Voltage
Propagation Delay*
Pin 3-2 Resistance
Pin 3-2 Output Voltage
Symbol
VBUS
IS
IQL
IQH
∆IQ
Addr
VCLH
VCHL
VCHYS
fCLK
VL
VH
VRST
tplh
tphl
RSWH
RSWL
VSWH
VSWL
Test Conditions
DUT Addressed, B > 300 G
VBUS = 6 V
VBUS = 9 V
IQL – IQH
Factory Specified
LOW to HIGH
HIGH to LOW
Hysteresis
50% Duty Cycle
LOW to HIGH
HIGH to LOW
DUT Addressed, B < 5 G
DUT Addressed, B > 300 G
DUT Addressed, B < 5 G
DUT Addressed, B> 300 G
Min
—
12
—
—
—
1
—
6.5
—
2.5
VRST
VCLH
2.5
10
—
—
—
—
—
MAGNETIC CHARACTERISTICS over operating temperature range.
Limits
Typ Max
— 15
15 20
1.5 2.5
1.4 2.5
100 300
— 30
— 8.5
——
0.8 —
——
6.0 VCHL
9.0 VBUS
3.5 5.5
20 30
5.0 10
50 —
200 —
3.9 —
30 —
Characteristic
Magnetic Threshold†
Hysteresis
Symbol
BOP
BRP
BHYS
Test Conditions
Turn-On
Turn-Off
BOP – BRP
Min.
50
5.0
5.0
Typical Data is at TA = +25°C and is for design information only.
*This parameter, although warranteed, is not production tested.
†Alternative magnetic switch point specifications are available on special order. Please contact the factory.
Limits
Typ. Max.
150 300
100 295
50 —
Units
V
mA
mA
mA
µA
—
V
V
V
kHz
V
V
V
µs
µs
kΩ
Ω
V
mV
Units
G
G
G
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1995 Allegro MicroSystems, Inc.
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A3054KU sensor
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