Allegro A1230LLTR-T

双极开关，双霍尔效应3.3V ~ 18V20mA开路漏极

Overview

The Allegro Microsystems A1230 is a dual-channel, bipolar switch with two Hall-effect sensing elements. Each element provides a separate digital output for speed and direction signal processing.The Hall elements are aligned with an accuracy greater than 1 μm. This accuracy makes it ideal for use in ring magnet based, speed and direction systems located in harsh automotive and industrial environments.The A1230 contains two independent Hall-effect bipolar switches located 1 mm apart. The digital outputs are out of phase so the outputs are in quadrature when interfaced with the proper ring magnet design. Low-drift amplifiers guarantee symmetry between the switches. The Allegro high-frequency chopper-stabilisation cancels offsets in each channel providing stable operation over the full specified temperature and voltage ranges.The A1230 is available in a plastic 8-pin SOIC surface mount package and a plastic 4-pin SIP.

AEC-Q100 automotive qualified Two matched Hall-effect switches on a single substrate1 mm Hall element spacingSuperior temperature stability and industry-leading jitter performance through use of advanced chopper stabilisation topologyIntegrated LDO regulator provides 3.3 V operationIntegrated ESD protection from outputs and VCC to groundHigh-sensitivity switchpointsRobust structure for EMC protectionReverse-battery protection on supply and both output pins

Features

Tape & Reel (TR) Package
Packaging: Tape & Reel (TR)
Moisture Sensitivity Level (MSL): 2 (1 Year)
Supply Voltage: 3.3V~18V
Operating Temperature: -40°C~150°C TA
Mounting Type: Surface Mount
8 Pins
8 Terminations
Output Type: Open Drain

20mA Current - Output (Max)

Applications

There are a lot of Allegro MicroSystems
A1230LLTR-T Magnetic Switches applications.

• Electric window lift
• Convertible roof position
• Motor assemblies
• Medication dispensing control
• Security and military applications
• Detection of ferromagnetic
• Discrimination of ferromagnetic
• Localization of ferromagnetic
• Conducting objects
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