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A3189LT の電気的特性と機能

A3189LTのメーカーはAllegro MicroSystemsです、この部品の機能は「HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION」です。


製品の詳細 ( Datasheet PDF )

部品番号 A3189LT
部品説明 HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION
メーカ Allegro MicroSystems
ロゴ Allegro MicroSystems ロゴ 




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A3189LT Datasheet, A3189LT PDF,ピン配置, 機能
3185 THRU
3189
HALL-EFFECT LATCHES
FOR HIGH-TEMPERATURE OPERATION
V
CC
12
3
Dwg. PH-003A
Pinning is shown viewed from branded side.
These Hall-effect latches are extremely temperature-stable and stress-
resistant sensors especially suited for operation over extended temperature
ranges to +150°C. Superior high-temperature performance is made possible
through a novel Schmitt trigger circuit that maintains operate and release
point symmetry by compensating for temperature changes in the Hall ele-
ment. Additionally, internal compensation provides magnetic switch points
that become more sensitive with temperature, hence offsetting the usual
degradation of the magnetic field with temperature. The symmetry capability
makes these devices ideal for use in pulse-counting applications where duty
cycle is an important parameter. The four basic devices (3185, 3187, 3188,
and 3189) are identical except for magnetic switch points.
Each device includes on a single silicon chip a voltage regulator, qua-
dratic Hall-voltage generator, temperature compensation circuit, signal
amplifier, Schmitt trigger, and a buffered open-collector output to sink up to
25 mA. The on-board regulator permits operation with supply voltages of 3.8
to 24 volts.
The first character of the part number suffix determines the device
operating temperature range. Suffix ‘E–’ is for -40°C to +85°C, and suffix
‘L–’ is for -40°C to +150°C. Three package styles provide a magnetically
optimized package for most applications. Suffix ‘–LT’ is a miniature SOT-
89/TO-243AA transistor package for surface-mount applications; suffix ‘–U’
is a three-lead plastic mini-SIP, while suffix ‘–UA’ is a three-lead ultra-mini-
SIP.
ABSOLUTE MAXIMUM RATINGS
at TA = +25°C
Supply Voltage, VCC ............................ 30 V
Reverse Battery Voltage, VRCC ........... -30 V
Magnetic Flux Density, B ........... Unlimited
Output OFF Voltage, VOUT .................. 30 V
Reverse Output Voltage, VOUT .......... -0.5 V
Continuous Output Current, IOUT ..... 25 mA
Operating Temperature Range, TA
Suffix ‘E–’ ................... -40°C to +85°C
Suffix ‘L–’ ................. -40°C to +150°C
Storage Temperature Range,
TS ............................... -65°C to +170°C
FEATURES
I Symmetrical Switch Points
I Superior Temperature Stability
I Operation From Unregulated Supply
I Open-Collector 25 mA Output
I Reverse Battery Protection
I Activate With Small, Commercially Available Permanent Magnets
I Solid-State Reliability
I Small Size
I Resistant to Physical Stress
Always order by complete part number: the prefix ‘A’ + the basic four-digit
part number + a suffix to indicate operating temperature range +
a suffix to indicate package style, e.g., A3185ELT .

1 Page





A3189LT pdf, ピン配列
3185 THRU 3189
HALL-EFFECT LATCHES
FOR HIGH-TEMPERATURE
OPERATION
TYPICAL OPERATING CHARACTERISTICS
A3185* SWITCH POINTS
300
A3187* SWITCH POINTS
150
200 OPERATE POINT
100
0
VCC = 12 V
100
OPERATE POINT
50
0
VCC = 12 V
-100
-200
RELEASE POINT
-300
-50 -25 0 25 50 75 100 125 150
AMBIENT TEMPERATURE IN °C
Dwg. GH-026
OUTPUT SATURATION VOLTAGE
300
I OUT = 20 mA
VCC = 4.5–24 V
200
-50
-100
RELEASE POINT
-150
-50
-25
7.0
0 25 50 75 100
AMBIENT TEMPERATURE IN °C
SUPPLY CURRENT
125 150
Dwg. GH-027
VCC = 12 V
6.0
B B OP
100
0
-50 -25
10
0 25 50 75 100
AMBIENT TEMPERATURE IN °C
SUPPLY CURRENT
125 150
Dwg. GH-029
5.0
B BRP
4.0
-50
-25
20
0 25 50 75 100
AMBIENT TEMPERATURE IN °C
OPERATE POINT
125 150
Dwg. GH-028
8.0
6.0 B B OP
B BRP
4.0
15
10
5.0
TA = +25°C
2.0
TA = +25°C
0
0
0 5 10 15 20 25
-5.0
0
5 10 15 20 25
SUPPLY VOLTAGE IN VOLTS
Dwg. GH-030
SUPPLY VOLTAGE IN VOLTS
Dwg. GH-037
* Complete part number includes a suffix denoting operating temperature range (E or L) and package type (LT, U, or UA).


3Pages


A3189LT 電子部品, 半導体
3185 THRU 3189
HALL-EFFECT LATCHES
FOR HIGH-TEMPERATURE
OPERATION
PACKAGE DESIGNATOR ‘UA’
Dimensions in Inches
(controlling dimensions)
0.164
0.159
0.062
45° 0.058
Dimensions in Millimeters
(for reference only)
4.17
4.04
1.57
45° 1.47
0.122
0.117
0.085 1 2 3 0.031
MAX
0.640
0.600
SEE NOTE
0.016
45°
0.015
3.10
2.97
2.16 1 2 3 0.79
MAX
16.26
15.24
SEE NOTE
0.41
45°
0.38
0.002
MAX
0.050
BSC
Dwg. MH-014D in
1.27
BSC
Surface-Mount Lead Form (Suffix ‘-TL’)
0.095
±0.005
2.41
±0.13
0.051
MAX
Dwg. MH-014D mm
0.004 0°8°
MAX
0.020
MIN
FLAT
Dwg. MH-015 in
0.10 0°8°
MAX
0.51
MIN
FLAT
Dwg. MH-015 mm
NOTES: 1.
2.
3.
4.
5.
Tolerances on package height and width represent allowable mold offsets. Dimensions given are
measured at the widest point (parting line).
Exact body and lead configuration at vendor’s option within limits shown.
Height does not include mold gate flash.
Recommended minimum PWB hole diameter to clear transition area is 0.035" (0.89 mm).
Where no tolerance is specified, dimension is nominal.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000

6 Page



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部品番号部品説明メーカ
A3189LT

HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION

Allegro MicroSystems
Allegro MicroSystems


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