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A3240UA-TL Datasheet

  • A3240UA-TL

  • CHOPPER-STABILIZED, PRECISION HALL-EFFECT SWITCH

  • 10頁(yè)

  • ALLEGRO   ALLEGRO

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3240
Suffix 鈥樷€揕T鈥?& 鈥樷€揢A鈥?Pinning
(SOT89/TO-243AA & ultra-min SIP)
CHOPPER-STABILIZED, PRECISION
HALL-EFFECT SWITCH
The A3240-- Hall-effect switch is an extremely temperature-stable
and stress-resistant sensor especially suited for operation over extended
temperature ranges to +150擄C. Superior high-temperature performance
is made possible through dynamic offset cancellation, which reduces the
residual offset voltage normally caused by device overmolding, tempera-
ture dependencies, and thermal stress.
The device includes on a single silicon chip a voltage regulator,
Hall-voltage generator, small-signal amplifier, chopper stabilization,
Schmitt trigger, and a short-circuit protected open-collector output to
sink up to 25 mA. A south pole of sufficient strength will turn the
output on. An on-board regulator permits operation with supply voltages
of 4.2 to 24 volts.
The first character of the part number suffix determines the device
operating temperature range; suffix 鈥楨鈥撯€?is for -40擄C to +85擄C and
鈥楲鈥撯€?is -40擄C to +150擄C. Three package styles provide a magnetically
optimized package for most applications. Suffix 鈥樷€揕H鈥?is a modified
SOT23W surface-mount package, 鈥樷€揕T鈥?is a miniature SOT89/TO-
243AA transistor package for surface-mount applications; while suffix
鈥樷€揢A鈥?is a three-lead ultra-mini-SIP for through-hole mounting.
Data Sheet
27621.20b
X
PTCT
V
CC
1
2
3
GROUND
Dwg. PH-003-2
Pinning is shown viewed from branded side.
ABSOLUTE MAXIMUM RATINGS
at T
A
= +25
擄
C
Supply Voltage, V
CC
........................
26.5 V
Reverse Battery Voltage, V
RCC
..........
-30 V
Magnetic Flux Density, B ...........
Unlimited
Output OFF Voltage, V
OUT
.................
26 V
Continuous Output Current,
I
OUT
..........................................
25 mA*
Reverse Output Current, I
OUT
........
-50 mA
Package Power Dissipation, P
D
.
See Graph
Junction Temperature, T
J
...............
+165
擄
C
Operating Temperature Range, T
A
Suffix 鈥楨鈥撯€?..................
-40
擄
C to +85
擄
C
Suffix 鈥楲鈥撯€?................
-40
擄
C to +150
擄
C
Storage Temperature Range,
T
S
..............................
-65
擄
C to +170
擄
C
*Internal current limiting is intended to protect
the device from output short circuits.
OUTPUT
SUPPLY
FEATURES
s
s
s
s
s
s
s
Resistant to Physical Stress
Superior Temperature Stability
Output Short-Circuit Protection
Operation From Unregulated Supply
Reverse Battery Protection
Solid-State Reliability
Small Size
Always order by complete part number: the prefix 鈥楢鈥?+ the basic four-
digit part number + a suffix to indicate operating temperature range +
a suffix to indicate package style, e.g.,
A3240ELH .

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