A3188LLT datasheet, PDF - EEWORLD Datasheet

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A3188LLT: DescriptionAnalog Circuit, 1 Func, PDSO3, TO-243AA, SOT-89, 3 PIN; CategoryAnalog mixed-signal IC The signal circuit; File Size146KB，8 Pages; ManufacturerAllegro; Websitehttp://www.allegromicro.com/; Environmental Compliance

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A3188LLT Overview

Analog Circuit, 1 Func, PDSO3, TO-243AA, SOT-89, 3 PIN

A3188LLT Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Allegro
Parts packaging code	SOT-89
package instruction	TO-243AA, SOT-89, 3 PIN
Contacts	3
Reach Compliance Code	unknown
Other features	REVERSE BATTERY PROTECTION
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT
JESD-30 code	R-PDSO-F3
JESD-609 code	e3
length	4.5 mm
Number of functions	1
Number of terminals	3
Maximum operating temperature	150 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	LSOF
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
Maximum seat height	1.6 mm
Maximum supply voltage (Vsup)	24 V
Minimum supply voltage (Vsup)	3.8 V
Nominal supply voltage (Vsup)	12 V
surface mount	YES
Temperature level	AUTOMOTIVE
Terminal surface	Matte Tin (Sn)
Terminal form	FLAT
Terminal pitch	1.5 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	2.445 mm
Base Number Matches	1

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3185

THRU

3189

HALL-EFFECT LATCHES

FOR HIGH-TEMPERATURE OPERATION

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.

Data Sheet

27609.2B*

GROUND

Dwg. PH-003A

Pinning is shown viewed from branded side.

ABSOLUTE MAXIMUM RATINGS

at T

= +25

Supply Voltage, V

............................

30 V

Reverse Battery Voltage, V

RCC

...........

-30 V

Magnetic Flux Density, B ...........

Unlimited

Output OFF Voltage, V

OUT

..................

30 V

Reverse Output Voltage, V

OUT

..........

-0.5 V

Continuous Output Current, I

OUT

.....

25 mA

Operating Temperature Range, T

Suffix ‘E–’ ...................

-40

C to +85

Suffix ‘L–’ .................

-40

C to +150

Storage Temperature Range,

...............................

-65

C to +170

OUTPUT

SUPPLY

FEATURES

Symmetrical Switch Points

Superior Temperature Stability

Operation From Unregulated Supply

Open-Collector 25 mA Output

Reverse Battery Protection

Activate With Small, Commercially Available Permanent Magnets

Solid-State Reliability

Small Size

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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