BD67173NUX
Three-phase Full-Wave Fan Motor Driver

BD67173NUX is a three-phase sensor less fan motor driver used to cool off notebook PCs. It is controlled by a variable speed provided through the PWM input signal. Its feature is sensor less drive which doesn’t require a hall device as a location detection sensor and motor downsizing can be achieved by limiting the number of external components as much as possible. Furthermore, introducing a direct PWM soft switched driving mechanism achieves silent operations and low vibrations.

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Product Detail

 
Part Number | BD67173NUX-E2
Status | Recommended
Package | VSON010X3030
Unit Quantity | 4000
Minimum Package Quantity | 4000
Packing Type | Taping
RoHS | Yes

Specifications:

Grade

Standard

Usage

Notebook PC

Type

Driver

Vcc (Max.)[V]

7.0

Power Supply Voltage (Max.)[V]

5.5

Power Supply Voltage (Min.)[V]

2.2

Iout (Max.)[A]

0.7

Speed Control Input

PWM

For Fan Motor

Yes

Operating Temperature (Min.)[°C]

-25

Operating Temperature (Max.)[°C]

95

Features:

  • Speed controllable by PWM input signal
  • Sensorless drive
  • Soft switched drive Quick start
  • Power save function
  • Internal RNF resistance
  • Quick start function

Design Resources

 

Technical Articles

Schematic Design & Verification

  • Method for Monitoring Switching Waveform
  • Importance of Probe Calibration When Measuring Power: Deskew
  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • Notes for Temperature Measurement Using Thermocouples
  • Two-Resistor Model for Thermal Simulation
  • Notes for Temperature Measurement Using Forward Voltage of PN Junction
  • Thermal Resistance
  • Precautions When Measuring the Rear of the Package with a Thermocouple

Tools

2D/3D/CAD

  • VSON010X3030 Footprint / Symbol

Packaging & Quality

Package Information

  • Package Information
  • Anti-Whisker formation

Manufacturing Data

  • Factory Information

Environmental Data

  • UL94 Flame Classifications of Mold Compound
  • Compliance with the ELV directive
  • REACH SVHC Non-use Declaration
  • REACH SVHC Non-use Declaration
  • RoHS Comission Delegated Directive

Export Information

  • The Export Control Order
  • Export Administration Regulations(EAR)