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3175 PDF даташит

Спецификация 3175 изготовлена ​​​​«Allegro MicroSystems» и имеет функцию, называемую «HALL-EFFECT LATCHES».

Детали детали

Номер произв 3175
Описание HALL-EFFECT LATCHES
Производители Allegro MicroSystems
логотип Allegro MicroSystems логотип 

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3175 Даташит, Описание, Даташиты
3175 AND
3177
V
CC
12
3
HALL-EFFECT LATCHES
These Hall-effect latches are temperature-stable and stress-resistant
sensors especially suited for electronic commutation in brushless dc
motors using multipole ring magnets. Each device includes a voltage
regulator, quadratic Hall voltage generator, temperature compensation
circuit, signal amplifier, Schmitt trigger, and an open-collector output on
a single silicon chip. The on-board regulator permits operation with
supply voltages of 4.5 volts to 18 volts. The switch output can sink
10 mA. With suitable output pull up, they can be used directly with
bipolar or MOS logic circuits.
The three package styles available provide a magnetically optimized
package for most applications. Suffix ‘LT’ is a surface-mount SOT-89/
TO-243AA package; suffixes ‘U’ and ‘UA’ feature wire leads for
through-hole mounting.
Dwg. PH-003A
Pinning is shown viewed from branded side.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VCC . . . . . . . . . . . . . 18 V
Reverse Battery Voltage, VRCC . . . . -18 V
Magnetic Flux Density, B . . . . Unlimited
Output OFF Voltage, VOUT . . . . . . . . 18 V
Continuous Output Current, IOUT . 15 mA
Operating Temperature Range,
TA . . . . . . . . . . . . . . . -20°C to +85°C
Storage Temperature Range,
TS . . . . . . . . . . . . . . . -65°C to +150°C
FEATURES
I Symmetrical Response
I 4.5 V to 18 V Operation
I Open-Collector Output
I Reverse Battery Protection
I Activate With Small, Commercially Available Permanent Magnets
I Solid-State Reliability
I Small Size
I Superior Temperature Stability
I Resistant to Physical Stress
Always order by complete part number, e.g., UGN3175LT .
See Magnetic Characteristics table for differences between devices.









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3175 Даташит, Описание, Даташиты
3175 AND 3177
HALL-EFFECT
LATCHES
1 VCC
FUNCTIONAL BLOCK DIAGRAM
REG.
X 3 OUTPUT
2 GROUND
Dwg. FH-005-2
ELECTRICAL CHARACTERISTICS at TA = +25°C, VCC = 4.5 V to 18 V (unless otherwise noted).
Limits
Characteristic
Symbol
Test Conditions
Min. Typ. Max. Units
Supply Voltage
Output Saturation Voltage
Output Leakage Current
Supply Current
Output Rise Time
Output Fall Time
VCC
VOUT(SAT)
IOFF
ICC
tr
tf
Operating
VCC = 18 V, IOUT = 10 mA, B > BOP
VOUT = 18 V, B < BRP
VCC = 4.5 V, B < BRP (Output OFF)
VCC = 12 V, RL = 1.1 k, CL = 20 pF
VCC = 12 V, RL = 1.1 k, CL = 20 pF
4.5 — 18
— 200 300
— 0.05 5.0
— 5.0 10
— 0.04 2.0
— 0.18 2.0
V
mV
µA
mA
µs
µs
MAGNETIC CHARACTERISTICS in gauss; VCC = 4.5 V to 18 V.
Characteristic
Part
Number*
Min.
TA = +25°C
Typ.
Max.
Operate Point, BOP
UGN3175
UGN3177
25 —
50 —
170
150
Release Point, BRP
UGN3175
UGN3177
-170
-150
-25
-50
Hysteresis, Bhys
UGN3175
UGN3177
100 200
100 200
NOTE: As used here, negative flux densities are defined as less than zero (algebraic convention).
Complete part number includes a suffix denoting package type (LT, U, or UA).
TA = -20°C to +85°C
Min.
Typ.
Max.
15 — 180
25 — 150
-180 — -15
-150 — -25
80 180 —
50 180 —
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1991, 1999, Allegro MicroSystems, Inc.









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3175 Даташит, Описание, Даташиты
3175 AND 3177
HALL-EFFECT
LATCHES
SENSOR LOCATIONS
(±0.005” [0.13mm] die placement)
Suffix “LT”
ACTIVE AREA DEPTH
0.030"
0.76 mm
NOM
0.090"
2.30 mm
0.045"
1.15 mm
A
12
3
Dwg. MH-008-1B
Suffix “U”
ACTIVE AREA DEPTH
0.015"
0.38 mm
NOM
0.092"
2.35 mm
0.072"
1.83 mm
A
BRANDED
SURFACE
1
2
3
Dwg. MH-002-3B
Suffix “UA”
ACTIVE AREA DEPTH
0.018"
0.46 mm
NOM
0.083"
2.12 mm
A
BRANDED
SURFACE
1
2
0.055"
1.39 mm
3
Dwg. MH-011B
TYPICAL OPERATING CHARACTERISTICS
200
OPERATE POINT
100
0
VCC = 14 V
-100
RELEASE POINT
-200
-30
-10 10 30 50
AMBIENT TEMPERATURE IN °C
70 90
Dwg. GH-020










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