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Introduction

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Introduction

In order to cope with the increasing computing power of servers, Weltrend provides 1-phase/3-phase and sensor/sensorless BLDC controllers for server cooling fans. The controllers include pre-driving, built-in MOSFET, and all-in-one (Hall sensor/MOSFET) solutions.

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    BLDC motor drivers and controllers

    Item

    Description

    Package

    STL5000

    3-Phase 12V BLDC Motor Controller with 8KB MTP

    DFN16 / DFN20

    DFN16 / DFN20

    STL5210

    3-Phase 12V BLDC Motor Controller with 8KB MTP

    DFN16 / DFN20

    DFN16 / DFN20

    STL5300

    3-Phase 12V BLDC Motor Controller with 16KB MTP

    DFN20

    DFN20

    STL5900

    48V Sensorless BLDC Controller with built-in Buck, LDO, BEMF Detection, NN Structure Gate Driver with Bootstrap, ISET, and 180° SVM Control

    QFN24

    QFN24

    STL6600

    Pre-driving Type Advanced Timing Closed-Loop Direct-PWM DC Fan Controller

    DFN16

    DFN16

    STL6800

    Pre-driving Type Direct-PWM DC Fan Controller with built-in On-line Tuning Feature and OTP Programming

    DFN16

    DFN16

    STL6810

    Pre-driving Type Direct-PWM DC Fan Controller with built-in the On-line Tuning Feature and 2-Chance OTP Programing

    DFN16

    DFN16

    STL6300

    3-Phase BLDC Motor Driver with Max Driving Capability up to 6.5A and Operating Voltage ranging from 6V to 20V

    QFN24 / QFN28

    QFN24 / QFN28

    STL6580

    Driving Type Direct-PWM DC Fan Controller with max driving capability up to 2A and Operating Voltage ranging from 4V to 16V

    DFN16

    DFN16

    STL6700

    Driving Type Direct-PWM DC Fan Controller with max driving capability up to 1A and Operating Voltage ranging from 2.75V to 16V

    SSOP16

    SSOP16

    STL7100

    Driving Type Direct-PWM DC Fan Controller with max driving capability up to 1.2A and Operating Voltage ranging from 3V to 18V

    TSOT23-6G / TSOT23-6L

    TSOT23-6G / TSOT23-6L

    WT51FS16

    5V BLDC controller

    MSOP10 / QFN16

    MSOP10 / QFN16

    WT51FD16

    24V sensor-less BLDC controller with built-in LDO and BEMF detection

    QFN16

    QFN16

    WT51FM24

    12V sensor-less BLDC controller with built-in LDO, BEMF detection, and NN structure gate driver with Bootstrap

    QFN24

    QFN24

    WT51FH24

    12V sensor-less BLDC controller with built-in LDO, BEMF detection, NN structure gate driver with Charge Pump, ISET, and 180° SVM control

    QFN24

    QFN24

    WT51FG24

    48V sensor-less BLDC controller with built-in Buck, LDO, BEMF detection, NN structure gate driver with Bootstrap, ISET, and 180° SVM control

    QFN24

    QFN24

    WT58F032

    32-bit 5V Motor Controller

    LQFP48 / QFN40

    LQFP48 / QFN40

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