Diodes Incorporated — Analog and discrete power solutions
Back to Hall Effect Latches and Switches

AH266 (Not Recommended for New Design (NRND))

NRND = Not Recommended for New Design

Two Phase 12V/24 BLDC All-In-One Fan and Motor Drive Latch

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.

Description

AH266 is an integrated Hall sensor with output drivers designed for electronic commutation of brush-less DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, a Schmitt trigger to provide switching hysteresis for noise rejection, and complementary Darlington open-collector drivers for sinking large current loads. An internal band-gap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. If a magnetic flux density (B) is larger than operation point (Bop), DO will turn on (low) and DOB will turn off (high). The output state is latched prior to reaching release point (Brp). If B< Brp, DO will turn off and DOB will turn on. AH266 is rated for operation over temperature range from -20oC to 85 oC and voltage range from 4V to 28V. The devices are available in low cost die forms or rugged 4 pin SIP packages.

Feature(s)

  • On-Chip Hall Plate
  • Operating Voltage: 4V~28V
  • Output Current: 400mA (Continuous, 25oC)
  • Reverse Protection Diode Only for Chip Reverse Power Connecting
  • Output Protection Zener Breakdown Vz = 62V (Typ.)
  • Lead Free package: SIP-4L
  • SIP-4L: Available in “Green” Molding Compound (No Br, Sb)
  • Lead Free Finish/ RoHS Compliant
  • Application(s)

  • Dual-Coil Brush-Less DC Motor
  • Dual-Coil Brush-Less DC Fan
  • Revolution Counting
  • Speed Measurement
  • Specifications & Technical Documents

    Product Parameters

    Compliance (Only Automotive Supports PPAP) Standard
    Operating Ambient Temperature (°C) -20 to 85
    AEC Qualified No
    Type Latch
    Outputs Dual Complementary
    Output Type Open Collector
    Active Output State (B > Bop) Low
    Inactive Output State (B < Brp) High-Z
    Operating Voltage (V) 4 to 28
    Average Supply Current (mA) 0.005
    Min Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 10
    Max Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 70, 100
    Min Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) -70, -100
    Max Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) -10
    Output Current Capability (mA) 400, 700

    Related Content

    Packages

    Technical Documents

    Recommended Soldering Techniques

    TN1.pdf

    Purchase & Availability

    Something went wrong with your request. Please try again later. If this problem continues, please contact Diodes support for assistance.

    Product Change Notices (PCNs)

    A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

    PCN # Issue Date Implementation Date Subject
    PCN-2707 2024-12-30 2025-06-30 Product End of Life (EOL)
    PCN-2527 2021-06-09 2021-09-09 Additional Wafer Source (GFAB, JKFAB), New Bill of Materials (BOM) with PdCu Bond Wire, and Additional Assembly/Test
    (A/T) Site (CAT)