A3240ELTTR-T
A3240ELTTR-T Datasheet
A3240 Chopper-Stabilized, Precision Hall-Effect Switch
| Part | Datasheet |
|---|---|
A3240ELTTR-T |
A3240ELTTR-T (pdf) |
| Related Parts | Information |
|---|---|
A3240ELHLT |
A3240ELHLT |
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A3240LUA-T |
A3240LUA-T |
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A3240LLHLT-T |
A3240LLHLT-T |
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A3240LLHLT |
A3240LLHLT |
|
A3240ELHLT-T |
A3240ELHLT-T |
A3240ELT-T |
A3240ELT-T |
|
A3240LUA |
A3240LUA |
A3240LLT |
A3240LLT |
A3240LLT-T |
A3240LLT-T |
A3240LLTTR-T |
A3240LLTTR-T |
A3240ELTTR |
A3240ELTTR |
|
A3240EUA-T |
A3240EUA-T |
|
A3240EUA |
A3240EUA |
A3240LLTTR |
A3240LLTTR |
| PDF Datasheet Preview |
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| A3240 Chopper-Stabilized, Precision Hall-Effect Switch Not for New Design These parts are in production but have been determined to be NOT FOR NEW DESIGN. This classification indicates that sale of this device is currently restricted to existing customer applications. The device should not be purchased for new design applications because obsolescence in the near future is probable. Samples are no longer available. Date of status change May 4, 2009 Recommended Substitutions: The replacement part is the A1120 next-generation chopper-stabilized switch. NOTE For detailed information on purchasing options, contact your local Allegro field applications engineer or sales representative. Packages: 3-pin SOT89 3-pin SOT23W LT package LH package Not to scale A3240 Chopper-Stabilized, Precision Hall-Effect Switch 3-pin SIP UA package The A3240 Hall-effect 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 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 to 24 volts. Three package styles provide a magnetically optimized package for most applications. Package type LH is a modified SOT23W surface-mount package, LT is a miniature SOT89/TO-243AA transistor package for surface-mount applications while UA is a three-lead ultra-mini-SIP for through-hole mounting. The LH and UA packages are also available in a lead Pb free version suffix, , with a 100% matte tin plated leadframe. Functional Block Diagram SUPPLY REG. TO ALL SUBCIRCUITS DYNAMIC OFFSET CANCELLATION SAMPLE & HOLD LOW-PASS FILTER OUTPUT CONTROL CURRENT LIMIT GROUND Dwg. FH-020-1 27621.20h A3240 Chopper-Stabilized, Precision Hall-Effect Switch Selection Guide Packing* Mounting A3240ELHLT-T 7-in. reel, 3000 pieces/reel Surface Mount A3240ELTTR-T 7-in. reel, 1000 pieces/reel Surface Mount A3240EUA-T Bulk, 500 pieces/bag SIP through hole A3240LLHLT-T 7-in. reel, 3000 pieces/reel Surface Mount A3240LLTTR-T 7-in. reel, 1000 pieces/reel Surface Mount A3240LUA-T Bulk, 500 pieces/bag |
| More datasheets: A3240LLHLT | A3240ELHLT-T | A3240ELT-T | A3240LUA | A3240LLT | A3240LLT-T | A3240LLTTR-T | A3240ELTTR | A3240EUA-T | A3240EUA |
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