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What is UGN3188?

This electronic component, produced by the manufacturer "Allegro MicroSystems", performs the same function as "(UGN3185 - UGN3189) HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION".


UGN3188 Datasheet PDF - Allegro MicroSystems

Part Number UGN3188
Description (UGN3185 - UGN3189) HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION
Manufacturers Allegro MicroSystems 
Logo Allegro MicroSystems Logo 


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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 SOT89/
TO-243AA transistor package for surface-mount applications; 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
s Symmetrical Switch Points
s Superior Temperature Stability
s Operation From Unregulated Supply
s Open-Collector 25 mA Output
s Reverse Battery Protection
s Activate With Small, Commercially Available Permanent Magnets
s Solid-State Reliability
s Small Size
s 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 .

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UGN3188 equivalent
3185 THRU 3189
HALL-EFFECT LATCHES
FOR HIGH-TEMPERATURE
OPERATION
PACKAGE DESIGNATOR ‘LT’
(SOT89/TO-243AA)
Dimensions in Inches
(for reference only)
Dimensions in Millimeters
(controlling dimensions)
0.167
0.155
0.181
0.173
0.072
0.064
0.102
1 2 3 0.090
0.047
0.035
0.059
BSC
0.0189
0.0142
0.0221
0.0173
0.118
BSC
0.063
0.055
0.090
0.084
0.0173
0.0138
Dwg. MA-009-3A in
4.25
3.94
4.60
4.40
1.83
1.62
2.60
1 2 3 2.29
1.20
0.89
1.50
BSC
0.48
0.36
0.56
0.44
3.00
BSC
1.60
1.40
2.29
2.13
0.44
0.35
Dwg. MA-009-3A mm
0.098
0.079
B
A
0.031
0.102
0.181
1 2 3 0.047
0.028
TYP
0.031
TYP
Pads 1, 2, 3, and A Standard SOT89 Layout
Pads 1, 2, 3, and B Low-Stress Version
Pads 1, 2, and 3 only Lowest Stress, But Not Self Aligning
Dwg. MA-012-3 in
2.5
2.0
B
A
0.8
2.6
4.6
1 2 3 1.2
0.7 0.8
TYP TYP
Pads 1, 2, 3, and A Standard SOT89 Layout
Pads 1, 2, 3, and B Low-Stress Version
Pads 1, 2, and 3 only Lowest Stress, But Not Self Aligning
Dwg. MA-012-3 mm
NOTES: 1. Exact body and lead configuration at vendor’s option within limits shown.
2. Supplied in bulk pack (500 pieces per bag) or add "TR" to part number for tape and reel.
3. Only low-temperature (240°C) reflow-soldering techniques are recommended for SOT89 devices.
www.allegromicro.com


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