Diodes Incorporated, a prominent player in the semiconductor industry (Nasdaq: DIOD), has introduced its latest addition, the AH371xQ series of high-voltage Hall-effect latches, augmenting its already diverse product portfolio. These automotive-compliant devices showcase a proprietary Hall plate design, amplifying their performance capabilities, and find application across a spectrum of automotive functionalities.
Designed to cater to various automotive needs such as brushless DC motor control, valve operation, linear and incremental rotary encoders, and position-sensing functions, the AH371xQ series offers a versatile solution for in-vehicle comfort and engine management applications. From controlling window power-lifts and sunroof movements to managing tailgate mechanisms, seat adjustments, cooling fans, water/oil pumps, and speed measurement, these latches demonstrate adaptability and utility in numerous automotive systems.
Key features of the AH371xQ series include an operating voltage range spanning from 3V to 27V, coupled with 40V load dump protection, enabling seamless integration into a wide array of automotive systems. Notably, the chopper-stabilized design of these devices effectively counters the impact of thermal variations while enhancing their resistance to stray field interference. With a power-on time averaging at 13µs, these latches ensure prompt functionality.
With a range spanning 25 gauss to 140 gauss, engineers have access to six sensitivity options with precise operating windows and minimal temperature coefficients for switch points. This flexibility allows for optimal magnetic operating and release parameters, tailoring the latches to specific sensing distances and magnet variations. Additionally, the open-drain outputs provide increased external pull-up flexibility for varying voltage requirements, whether higher or lower than the supply voltage.
In terms of safety and reliability, the AH371xQ series boasts an 8kV human body model electrostatic discharge (ESD) rating, incorporating crucial protection features such as reverse blocking diode, overcurrent protection, and overvoltage clamp within each device.
Furthermore, these automotive-compliant Hall-effect latches adhere to AEC-Q100 Grade 0 qualifications, manufactured in IATF 16949 certified facilities, and support PPAP documentation, ensuring industry-standard quality and reliability. Available in SOT23 (Type S), SC59, SIP-3 (Bulk Pack), and U-DFN2020-6 (SWP) packages, the AH371xQ family caters to diverse form factor requirements. Priced at $0.32 in quantities of 1,000 pieces, these latches, along with Diodes’ comprehensive portfolio of Hall-effect sensors, are accessible through the Hall-effect sensor part selector.
