3260
Suffix Code 'LH' Pinning
2-WIRE, CHOPPER-STABILIZED,
PRECISION HALL-EFFECT BIPOLAR SWITCH
The A3260-- Hall-effect bipolar switch is an extremely
temperature-stable and stress-resistant sensor especially suited for
operation over extended temperature ranges to +150°C. Superior
high-temperature performance is made possible through dynamic
offset cancellation, which reduces the residual offset voltage normally
caused by device overmolding, temperature 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 constant-current open-collector output. A south
pole of sufficient strength will turn the output OFF. An on-board
regulator permits operation with supply voltages of 3.5 to 24 volts.
Noise radiation is limited by control of the output current slew rate.
The first character of the part number suffix determines the device
operating temperature range; suffix ‘E–’ is -40°C to +85°C and ‘L–’ is
-40°C to +150°C. Three package styles provide a magnetically opti-
mized package for most applications. Suffix ‘–LH’ is a miniature low-
profile surface-mount package, ‘–LT’ is a miniature SOT-89/TO-
243AA transistor package for surface-mount applications; while suffix
‘–UA’ is a three-lead ultra-mini-SIP for through-hole mounting.
Data Sheet
27631.50
3
NC
1
2
X
GROUND
NO (INTERNAL)
CONNECTION
Dwg. PH-003-5
Pinning is shown viewed from branded side.
ADVANCE INFORMATION
(subject to change without notice)
June 30, 2000
SUPPLY
FEATURES
ABSOLUTE MAXIMUM RATINGS
at T
A
=+25
°
C
Supply Voltage, V
CC
...........................
27 V
Reverse Battery Voltage, V
RCC
..........
-16 V
Magnetic Flux Density, B ...........
Unlimited
Package Power Dissipation, P
D
.
See Graph
Junction Temperature, T
J
...............
+170
°
C
Operating Temperature Range, T
A
Suffix ‘E–’ ..................
-40
°
C to +85
°
C
Suffix ‘L–’ ................
-40
°
C to +150
°
C
Storage Temperature Range,
T
S
..............................
-65
°
C to +170
°
C
I
I
I
I
I
I
I
I
Internal Current Regulator for 2-Wire Operation
Output Slew Rate Controlled
Resistant to Physical Stress
Superior Temperature Stability
Operation From Unregulated Supply
Reverse Battery Protection
Solid-State Reliability
Small Size
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.,
A3260ELH .
3260
2-WIRE, CHOPPER-STABILIZED,
PRECISION HALL-EFFECT
BIPOLAR SWITCH
ELECTRICAL CHARACTERISTICS over operating temperature range.
Limits
Characteristic
Supply Voltage
Output Current
Chopping Frequency
Output Slew Rate
Output Settling Time
Reverse Battery Current
Symbol
V
CC
I
GND(L)
I
GND(H)
f
C
di/dt
t
sd
I
CC
C
L
= 20 pF
C
L
= 20 pF
V
RCC
= -16 V
Test Conditions
Operating
B > B
OP
B < B
RP
Min.
3.5
-4.0
-11
–
0.5
—
–
Typ.
12
-6.5
-14.5
340
—
—
–
Max.
24
-8.0
-18
–
2.0
20
-15
Units
V
mA
mA
kHz
mA/µs
µs
mA
NOTES:1. . B
OP
= operate point (output turns OFF); B
RP
= release point (output turns ON).
2. Typical Data is at T
A
= +25°C and V
CC
= 12 V and is for design information only.
MAGNETIC CHARACTERISTICS over operating supply voltage and temperature ranges.
Limits
Characteristic
Operate Point
Release Point
Hysteresis
Symbol
B
OP
B
RP
B
hys
B
OP
- B
RP
Test Conditions
Min.
–
-30
–
Typ.
10
-10
20
Max.
30
–
–
Units
G
G
G
NOTE — Typical Data is at T
A
= +25°C and V
CC
= 12 V and is for design information only.
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