Mains 3A brush-less dc motor driver shrugs off 600V surges

Toshiba is aiming at air conditioners, air purifiers and pumps with an IGBT-based brush-less dc motor driver, suitable for sine-wave generation, in a ~13 x 33mm through-hole HDIP30 package.

TPD4165K, as it will be know, can handle a maximum output of 3A, compared with 2A for the company’s earlier TPD4163K or TPD4164K.

Absolute maximum input voltage has been raised to 600V “to enhance long-term reliability”, said the company, compared to its existing TPD4123K, TPD4123AK, TPD4144K, TPD4144AK, TPD4135K or TPD4135AK.

Recommended operation is over 50 to 450Vdc (280V nominal), and the device also needs a separate 13.5 to 16.5Vdc (15V nominal).

The HDIP30 package is smaller than a standard DIP26 package, and uses a 1.778mm (0.07in) pin pitch, rather than the typical DIP pitch of 2.54mm (0.1in). Nominal dimensions are 32.8 x 13.5 x 3.525mm.

Electrically, it has a six IGBT three-phase bridge with support for three-shunt or single-shunt current sensing. The bridge includes six anti-parallel fast diodes.

Output transistors typically saturate to 2.6V (3.3Vmax) at 1.5A. Resulting heat need to be extracted through the package’s top-mounted heat pad.

A logic ‘low’ in the SD input will shut the output stage down.

Protections include over-current, under-voltage and thermal shut-down, with an output pin (DIAG) to indicate safety status.

“Designers can freely access a design for a sensorless BLDC motor drive circuit based upon the TPD4165K and Toshiba’s TMPM374FWUG microcontroller with vector control capability,” according to the company.

Find the TPD4165K product web page here