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A3260LT Datasheet(PDF) 1 Page - Allegro MicroSystems |
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A3260LT Datasheet(HTML) 1 Page - Allegro MicroSystems |
1 / 12 page 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. 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 . 3260 2-WIRE, CHOPPER-STABILIZED, PRECISION HALL-EFFECT BIPOLAR SWITCH Suffix Code 'LH' Pinning Supply Voltage, VCC ........................... 27 V Reverse Battery Voltage, VRCC .......... -16 V Magnetic Flux Density, B ........... Unlimited Package Power Dissipation, PD . See Graph Junction Temperature, TJ ............... +170 °C Operating Temperature Range, TA Suffix ‘E–’ .................. -40 °C to +85°C Suffix ‘L–’ ................ -40 °C to +150°C Storage Temperature Range, TS .............................. -65 °C to +170°C ABSOLUTE MAXIMUM RATINGS at TA=+25°C ADVANCE INFORMATION (subject to change without notice) June 30, 2000 NC 12 3 Dwg. PH-003-5 Pinning is shown viewed from branded side. |
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