BD67173NUX - Documentation
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.
×
Application Note
|
Notes for Temperature Measurement Using Thermocouples
|
|
This application note explains cautions regarding the temperature measurement. The content of this application note is generally applicable, irrespective of the types of semiconductor devices.
|
|
Two-Resistor Model for Thermal Simulation
|
|
This application note explains the two-resistor model, which is the simplest model among thermal models used in thermal simulations. The thermal simulations mentioned three-dimensional model thermal conduction and thermal fluid analysis tools.
|
|
Notes for Temperature Measurement Using Forward Voltage of PN Junction
|
|
This application note explains cautions regarding the temperature measurement Using Forward Voltage of PN Junction. The content of this application note is generally applicable, irrespective of the types of semiconductor devices.
|
|
Method for Monitoring Switching Waveform
|
|
This application note explains how to correctly monitor the switching waveforms of the power device element such as switching power supply or a motor drive circuit.
|
|
Thermal Resistance
|
|
The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.
|
|
Part Explanation
|
|
For ICs
|