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MTD6502B

5v 3 phase sensorless brushless dc fan controller

Status: In Production

Features:

  • Position sensorless BLDC drivers (no Hall sensor required)
  • 180° sinusoidal drive, for high efficiency and low acoustic noise
  • Support 2V to 5.5V power supplies
  • Speed control through PAM and/or PWM
  • Built-in directional control (DIR) pin
  • Built-in frequency generator
  • Built-in lockup protection and automatic recovery circuit (external capacitor not necessary)
  • Built-in over current limitation and short circuit protection
  • Built-in thermal shutdown protection
  • No external tuning required
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MTD6502B is a 3-phase full-wave driver for brushless sensorless DC motors. They feature 180° sinusoidal drive, high torque output, and silent drive. Due to their adaptive features and wide power-supply range capabilities (2 to 5.5V) they are intended to cover a wide range of motor characteristics, while requiring no external tuning from the user. Speed control can be achieved through either power supply modulation or pulse-width-modulation (using the PWM digital input pin). Due to the compact packaging and minimum bill-of-material (power transistors incorporated, no Hall sensor, no external tuning), they are best suited for low-cost fan applications requiring high efficiency and low acoustic noise, such as CPU cooling fans. Frequency generator output is also included, enabling for precision speed control in closed-loop applications. The MTD6502B drivers include a lockup protection mode, which turns-off the output current when the motor is under lock condition, and an automatic recovery that enables the fan to run when the lock condition is removed. Motor over-current limitation, short-circuit protection, and thermal-shutdown protection are also included.

Additional Features
  • Position sensorless BLDC drivers (no Hall sensor required)
  • 180° sinusoidal drive, for high efficiency and low acoustic noise
  • Support 2V to 5.5V power supplies
  • Speed control through PAM and/or PWM
  • Built-in directional control (DIR) pin
  • Built-in frequency generator
  • Built-in lockup protection and automatic recovery circuit (external capacitor not necessary)
  • Built-in over current limitation and short circuit protection
  • Built-in thermal shutdown protection
  • No external tuning required
Parametrics
Name
Value
Operating Voltage Range (V)
2 to 5.5
Output
MOSFET
Max. Continuous Current per output
0.75
Motor Control Methods
PWM,PAM
Motor Speed Output
Frequency Generator
Shutdown Protection
Overcurrent,Short Circuit,Overtemperature,Under Voltage
Ambient Temperature Range (°C)
-40 to +125
Packages
10/TDFN

Documents

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MTD6502B-LC1-00
0.021000
0.228788
10
TDFN
3x3x0.8mm
Matte Tin
e3
MTD6502B-LC1-01
0.021000
0.228788
10
TDFN
3x3x0.8mm
Matte Tin
e3
MTD6502B-LC1-02
0.021000
0.228788
10
TDFN
3x3x0.8mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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