3260 Datasheet, PDF (1/12 Pages) Allegro MicroSystems – 2-WIRE, CHOPPER-STABILIZED, PRECISION HALL-EFFECT BIPOLAR SWITCH

3260
2-WIRE, CHOPPER-STABILIZED,
PRECISION HALL-EFFECT BIPOLAR SWITCH
Suffix Code 'LH' Pinning
3
NC
1
2
Dwg. PH-003-5
Pinning is shown viewed from branded side.
ADVANCE INFORMATION
(subject to change without notice)
June 30, 2000
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.
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
FEATURES
I Internal Current Regulator for 2-Wire Operation
I Output Slew Rate Controlled
I Resistant to Physical Stress
I Superior Temperature Stability
I Operation From Unregulated Supply
I Reverse Battery Protection
I Solid-State Reliability
I 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 .