A1150, A1152, A1153, A1155, A1156, A1157, and A1158 Chopper-Stabilized, Two-Wire Hall-Effect Switches FEATURES AND BENEFITS DESCRIPTION AEC-Q100 automotive qualified The A1150, A1152, A1153, A1155, A1156, A1157, and A1158 High-speed, 4-phase chopper stabilization comprise a family of two-wire, unipolar, Hall-effect switches, Low switchpoint drift throughout temperature range which are factory-trimmed to optimize magnetic switchpoint Low sensitivity to thermal and mechanical stresses accuracy. These devices are produced on the Allegro advanced On-chip protection BiCMOS wafer fabrication process, which implements a Supply transient protection high-frequency, 4-phase, chopper-stabilization technique. This Reverse-battery protection technique achieves magnetic stability over the full operating On-board voltage regulator temperature range, and eliminates offsets inherent in devices 3 to 24 V operation with a single Hall element that are exposed to harsh application Solid-state reliability environments. Robust EMC and ESD performance The A115x family has a number of automotive applications. Industry-leading ISO 7637-2 performance through use of These include sensing seat track position, seat belt buckle proprietary, 40 V clamping structures presence, hood/trunk latching, and shift selector position. Continued on the next page Two-wire unipolar switches are particularly advantageous in PACKAGES cost-sensitive applications because they require one less wire for operation versus the more traditional open-collector output 3-pin SOT23-W 3-pin ultramini SIP 2-pin ultramini SIP 2 mm 3 mm 1 1.5 mm 4 mm 3 1.5 mm 4 mm 4 switches. Additionally, the system designer inherently gains mm (suffix LH) mm (suffix UA) mm (suffix UB) diagnostics because there is always output current flowing, which should be in either of two narrow ranges. Any current level not within these ranges indicates a fault condition. All family members are offered in three package styles. The LH is a SOT-23W style, miniature, low profile package for surface-mount applications. The UA is a 3-pin, ultra-mini, single inline package (SIP) for through-hole mounting. The UB is a 2-pin, ultra-mini, single inline package (SIP) for through-hole mounting. All three packages are lead (Pb) free, with 100% matte-tin leadframe plating. Approximate footprint UB package only 0.1 F V+ VCC Regulator To all subcircuits Clock/Logic LH & UA package only 0.01 F Low-Pass Schmitt Trigger Filter Polarity Amp GND GND UA package only Functional Block Diagram A1152-DS, Rev. 11 August 9, 2018 MCO-0000485 Dynamic Offset Cancellation Sample and HoldChopper-Stabilized, Two-Wire A1150, A1152, A1153, A1155, A1156, A1157, and A1158 Hall-Effect Switches FEATURES AND BENEFITS (continued) Extended Operating Ambient temperature range, 40C to 150C UB package with integrated 0.1 F bypass capacitor SELECTION GUIDE Output (I ) in Supply Current Magnetic Operate CC Part Number Packing Package South Polarity at I Point, B CC(L) OP Field (mA) (G) A1150LLHLX-T 13-in. reel, 10 000 pieces/reel 3-pin SOT23W surface mount Low 2 to 5 A1150LUA-T Bulk, 500 pieces/bag 3-pin SIP through hole A1152LLHLX-T 13-in. reel, 10 000 pieces/reel 3-pin SOT23W surface mount A1152LUA-T Bulk, 500 pieces/bag 3-pin SIP through hole Low 5 to 6.9 50 to 110 A1152LUBTN-T 13-in. reel, 4 000 pieces/reel 2-pin SIP through hole A1153LLHLX-T 13-in. reel, 10 000 pieces/reel 3-pin SOT23W surface mount A1153LUA-T Bulk, 500 pieces/bag 3-pin SIP through hole High 5 to 6.9 A1153LUBTN-T 13-in. reel, 4 000 pieces/reel 2-pin SIP through hole A1155LLHLX-T 13-in. reel, 10 000 pieces/reel 3-pin SOT23W surface mount A1155LUA-T Bulk, 500 pieces/bag 3-pin SIP through hole Low 5 to 6.9 A1155LUBTN-T 13-in. reel, 4 000 pieces/reel 2-pin SIP through hole 20 to 60 A1156LLHLX-T 13-in. reel, 10 000 pieces/reel 3-pin SOT23W surface mount A1156LUA-T Bulk, 500 pieces/bag 3-pin SIP through hole High 5 to 6.9 A1156LUBTN-T 13-in. reel, 4 000 pieces/reel 2-pin SIP through hole A1157LLHLX-T 13-in. reel, 10 000 pieces/reel 3-pin SOT23W surface mount A1157LLHLT-T 7-in. reel, 3000 pieces/reel 3-pin SOT23W surface mount Low A1157LUA-T Bulk, 500 pieces/bag 3-pin SIP through hole 2 to 5 20 to 80 A1158LLHLX-T 13-in. reel, 10 000 pieces/reel 3-pin SOT23W surface mount A1158LLHLT-T 7-in. reel, 3000 pieces/reel 3-pin SOT23W surface mount High A1158LUA-T Bulk, 500 pieces/bag 3-pin SIP through hole 2 Allegro MicroSystems, LLC 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com