AH3272Q中文资料Two-Wire Automotive Hall Effect Latch Switches数据手册Diodes规格书

描述 Description

The AH3231Q, AH3232Q, AH3233Q, AH3270Q, AH3271Q, and AH3272Q are high voltage, high sensitivity two-wire Hall Effect Unipolar/Latch switch ICs with automotive-compliant AEC-Q100 qualification; designed for position and proximity sensing in automotive applications, such as seat and seatbelt buckle, transmission actuator, gear position, wiper, door/trunk closure, etc. To support a wide range of demanding applications, the design is optimized to operate over a supply range of 2.7V to 27V. These features include a chopper-stabilized architecture and an internal bandgap regulator to provide temperature compensated supply for internal circuits. For robustness and protection, the device has built-in reverse blocking diode with a Zener clamp on the supply. The built-in thermal protection also shuts down the chip if temperature rises to an abnormal value. This will automatically restart the chip once the junction temperature drops below the safe value. For AH3231Q, AH3232Q, and AH3233Q 2-wire unipolar switches: when the flux density (south pole) exceeds BOP, the supply current state is turned on (low or high). The output is held until a magnetic flux density falls below BRP, causing output current to be turned off. For AH3270Q, AH3271Q, and AH3272Q 2-wire latch switches: when the magnetic flux density is larger than BOP, output current is turned on (high). The output state is held until a magnetic flux density reversal falls below BRP, causing output current to be turned off (low).

特性 Features

•Unipolar: AH3231Q, AH3232Q, AH3233Q
•Output Polarity:•Direct: AH3232Q, AH3233Q
•Wide Supply Voltage Operation: 2.7V to 27V
•Chopper Stabilized Design Provides:•Superior Temperature Stability
•Enhanced Immunity to Stress
•Battery polarity reverse connection protection
•Over-Temperature Shut Down and Auto-Restart
•High ESD Rating: HBM = 8kV, CDM = 1kV
•Totally Lead-Free & Fully RoHS Compliant 
•The AH3231Q, AH3232Q, AH3233Q, AH3270Q, AH3271Q,and AH3272Q are suitable for automotive applicationsrequiring specific change control; these parts are AECQ100 qualified, PPAP capable, and manufactured in IATF16949 certified facilities.https://www.diodes.com/quality/product-definitions/

应用 Application

• Position and Proximity Sensing in Automotive Applications
• Seat positions
• Seatbelt buckles
• Wiper positions
• Window lifters
• Gear selection positions

简介

AH3272Q属于传感器变送器的磁性传感器-开关（固态）。由制造生产的AH3272Q磁性传感器 - 开关（固态）该系列产品使用固态技术来检测是否存在超过某个特定幅度和/或标示的磁场，并提供指示是否存在此类磁场的双态输出。它们与磁簧开关以及线性或罗盘型固态器件不同，前者通过使用移动机械部件来提供类似的功能，后者提供指示所施加磁场的强度和/或方向的可变输出。