A1201LUA-T
A1201LUA-T Datasheet
A1201
| Part | Datasheet |
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A1201LUA-T |
A1201LUA-T (pdf) |
| Related Parts | Information |
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A1201ELHLT-T |
A1201ELHLT-T |
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A1201EUA-T |
A1201EUA-T |
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A1201LLHLT-T |
A1201LLHLT-T |
| PDF Datasheet Preview |
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| A1201 Continuous-Time Bipolar Switch Continuous-time operation Fast power-on time Low noise performance Robust EMC performance High ESD rating Regulator stability without a bypass capacitor Packages 3 pin SOT23W suffix LH , and 3 pin SIP suffix UA The A1201 Hall-effect bipolar switch is a nextgeneration replacement and extension of the popular Allegro A3134 bipolar switch. Overall, the A1201, produced with BiCMOS technology, is a continuous-time device that features fast power-on time and low-noise operation. Device programming is performed after packaging, to ensure increased switchpoint accuracy by eliminating offsets that can be induced by package stress. Unique Hall element geometries and lowoffset amplifiers help to minimize noise and to reduce the residual offset voltage normally caused by device overmolding, temperature excursions, and thermal stress. TheA1201 Hall-effect bipolar switch includes the following on a single silicon chip voltage regulator, Hall-voltage generator, small-signal amplifier, Schmitt trigger, and NMOS output transistor. The integrated voltage regulator permits operation from to 24 V. The extensive on-board protection circuitry makes possible a ±30 V absolute maximum voltage rating for superior protection in automotive and motor commutation applications, without adding external components. The device is a member of the A1201 product family which has identical electrical characteristics throughout, but provides a range of magnetic switchpoints. Not to scale Continued on the next Functional Block Diagram Regulator To all subcircuits Gain Offset Trim Control VOUT GND A1201 Continuous-Time Bipolar Switch Description continued The small geometries of the BiCMOS process allow these devices to be provided in ultrasmall packages. The package styles available provide magnetically optimized solutions for most applications. Package LH is a SOT23W, a miniature low-profile surface-mount package, while package UAis a three-lead ultramini SIPfor throughhole mounting. Each package is lead Pb free, with 100% matte tin plated leadframes. Selection Guide Packing1 A1201ELHLT-T2 7-in. reel, 3000 pieces/reel A1201EUA-T2 Bulk, 500 pieces/bag A1201LLHLT-T2 7-in. reel, 3000 pieces/reel A1201LUA-T2 Bulk, 500 pieces/bag 1Contact Allegro for additional packing options. 2Variant is obsolete. Mounting 3-pin SOT23W surface mount 3-pin SIP through hole 3-pin SOT23W surface mount 3-pin SIP through hole Ambient, TA to 85ºC to 150ºC BRP Min BOP Max 50 Absolute Maximum Ratings Operating Ambient Temperature Maximum Junction Temperature Storage Temperature Symbol VCC VRCC VOUT VROUT IOUTSINK |
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