The A3260-- Hall-effect bipolar switch is an extremely
temperature-stable and stress-resistant sensor IC especially suited for
operation over extended temperature ranges to +150癈. 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癈 to +85癈 and L is
-40癈 to +150癈. Two package styles provide a magnetically opti-
mized package for most applications. Suffix LH is a miniature
SOT23W low-profile surface-mount package, while suffix UA is a
three-lead ultra-mini-SIP for through-hole mounting.
FEATURES
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
3260
2-WIRE, CHOPPER-STABILIZED,
PRECISION HALL-EFFECT BIPOLAR SWITCH
Suffix Code 'LH' Pinning
(SOT23W)
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
............... +165?/SPAN>C
Operating Temperature Range, T
A
Suffix E.................. -40?/SPAN>C to +85?/SPAN>C
Suffix L................ -40?/SPAN>C to +150?/SPAN>C
Storage Temperature Range,
T
S
.............................. -65?/SPAN>C to +170?/SPAN>C
ABSOLUTE MAXIMUM RATINGS
at T
A
=+25癈
Pinning is shown viewed from branded side.
NC
X
1
2
3
Dwg. PH-003-5
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