MTD6505(V2) 데이터 시트보기 (PDF) - Microchip Technology
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MTD6505
(Rev.:V2)
(Rev.:V2)
Microchip Technology
MTD6505 Datasheet PDF : 2 Pages
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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
15.3V
15.3V
5.5V
Fsw
20 kHz
20 kHz
23 kHz
30 kHz
Package
Thermally enhanced SOIC-8
MSOP-10
Thermally enhanced SOIC-8
TDFN-10
MTD6505
5.5V
30 kHz UDFN-10
Features
FG, PWM, Lockup recovery
FG, PWM, Boost, Lockup recovery
FG, PWM, Lockup recovery
FG, PWM, DIR, Lockup recovery
FG, PWM, DIR, Lockup recovery, programmable
BEMF coefficient
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.
MTD6505 Application CIrcuit Diagram
FG
PWM
MTD6505
PROG
DIR
VDD
VBIAS
VDD
C2
OUT1
OUT3
C1
OUT2
GND
Features
■■ 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
■■ Built-in overcurrent limitation
■■ Built-in thermal shutdown protection
■■ No external tuning required
Applications
■■ 3-phase BLDC motors
■■ 3-phase BLDC fans
■■ Pumps; e.g. water pumps
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