(China (Mainland))
Product Summary
The A1244 is a Two Wire Hall-Effect Latch. The A1244 is a two-wire Hall-effect latch. The devices are produced on the Allegro® advanced BiCMOS wafer fabrication process, which implements a patented high frequency, 4-phase, chopper-stabilization technique. This technique achieves magnetic stability over the full operating temperature range, and eliminates offsets inherent in devices with a single Hall element that are exposed to harsh application environments. Two-wire latches are particularly advantageous in cost-sensitive applications because they require one less wire for operation versus the more traditional open-collector output switches. Additionally, the system designer inherently gains 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. The Hall-effect latch will be in the high output current state in the presence of a magnetic south polarity field of sufficient magnitude and will remain in this state until a sufficient north polarity field is present.
Parametrics
A1244 absolute maximum ratings: (1)Forward Supply Voltage : 28 V; (2)Reverse Supply Voltage : –18 V; (3)Magnetic Flux Density : Unlimited G; (4)Operating Ambient Temperature : –40 to 150 ℃; (5)Maximum Junction Temperature : 165 ℃; (6)Storage Temperature : –65 to 170 ℃.
Features
A1244 features: (1)Solid-state reliability; (2)Robust EMC and ESD performance; (3)Industry leading ISO 7637-2 performance through use of proprietary, 40-V clamping structures.
Diagrams
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 A12442MNZQ |
C&K Components |
Rotary Switches Rotary |
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a12446-01 |
Laird Technologies / Thermal Solutions |
Thermal Interface Products Tmate 2920 9x9" 2.2 W/mK TIM |
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A1244LLHLT-I1-T |
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IC HALL EFFECT LATCH SOT23W |
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A1244LLHLT-I2-T |
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IC HALL EFFECT LATCH SOT23W |
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A1244LLHLX-I1-T |
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IC HALL EFFECT LATCH SOT-23W |
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A1244LLHLX-I2-T |
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IC HALL EFFECT LATCH SOT-23W |
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A1244LUA-I1-T |
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IC HALL EFFECT LATCH SIP-3 |
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A1244LUA-I2-T |
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IC HALL EFFECT LATCH SIP-3 |
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