Datasheet > ADM00308

ADM00308

更新时间： 2024-09-15 12:34:39

品牌	Logo	应用领域
美国微芯 - MICROCHIP		传感器
页数	文件大小	规格书
2页	1890K
描述
Highly Integrated 3-Phase BLDC Sinusoidal Sensorless

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中文翻译

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数据手册

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ADM00308 数据手册

Highly Integrated 3-Phase BLDC Sinusoidal Sensorless

Motor Fan Drivers and Dual Full-Bridge Drivers

More Cost Effective and Faster Time to Market

3-Phase BLDC Sinusoidal Motor Drivers

The MTD6501C/D/2B/5 product family is a 3-phase full-

wave sensorless driver for brushless DC (BLDC) motors.

It features 180° sinusoidal drive, high torque output and

silent drive. With the adaptive features, parameters and

wide range of power-supplies, the MTD6501C/D/2B/5 are

intended to cover a broad range of motor characteristics,

while requiring minimum external components. Speed

control can be achieved through either power supply

modulation (PSM) or pulse-width modulation (PWM). The

compact packaging and the minimal bill-of-material make

the MTD6501C/D/2B/5 product family extremely cost

efficient in fan applications.

For example, the CPU cooling fans in notebook computers

require designs that provide low acoustic noise, low

mechanical vibration, and are highly efficient. The frequency

generator (FG) output enables precision speed control in

closed-loop applications.

Device

MTD6501C

MTD6501D

MTD6501G

MTD6502B

Vmax

15.3V

5.5V

Fsw

Package

Thermally enhanced SOIC-8

MSOP-10

Features

FG, PWM, Lockup recovery

20 kHz

23 kHz

30 kHz

FG, PWM, Boost, Lockup recovery

FG, PWM, Lockup recovery

Thermally enhanced SOIC-8

TDFN-10

FG, PWM, DIR, Lockup recovery

FG, PWM, DIR, Lockup recovery, programmable

BEMF coefﬁcient

MTD6505

5.5V

30 kHz

UDFN-10

Features

The MTD6501C/D/2B/5 includes Lockup Protection mode

to turn off the output current when the motor is in a lock

condition, with an automatic recovery feature to restart the

fan when the lock condition is removed. Motor overcurrent

limitation and thermal shutdown protection are included for

safety enhanced operations.

■ 180° sinusoidal drive, for high efﬁciency and

low acoustic noise

■ Position sensorless BLDC Motor Drivers

(no hall-effect sensor required)

■ Integrated power transistors

■ Speed control through Power Supply Modulation (PSM)

and/or Pulse-Width Modulation (PWM)

■ Built-in frequency generator (FG Output Signal)

■ Built-in lockup protection and automatic

■ Recovery circuit

MTD6505 Application CIrcuit Diagram

PWM

MTD6505

PROG

DIR

VDD

■ Built-in overcurrent limitation

■ Built-in thermal shutdown protection

■ No external tuning required

BIAS

VDD

OUT1

OUT2

OUT3

GND

Applications

■ 3-phase BLDC motors

■ 3-phase BLDC fans

■ Pumps; e.g. water pumps

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