highPOWERZONE Products for the week of August 29, 2005
Advanced Power Technology Says . . .
APTGT50X170BT3: Efficient Trench Gate IGBT Power Modules
To 1700 V
Advanced Power Technology Europe, a leader in power module technology announced
a new product line of Field Stop, Trench Gate IGBT standard power modules.
These new products broaden our offering of 600 V products in the SP3 and
SP6-P, and introduce a complete new line of 600 V, 1200 V and 1700 V devices
in SP4 and SP6 packages.
All these products offer minimum VCE(sat) saturation voltage (typically 1.5 V for 600 V, 1.7 V for 1200 V and 2 V for 1700 V). They are dedicated to low frequency operation where overall system efficiency is a concern. The ideal switching frequency is 20 kHz for 600 V products, 10 kHz to 20 kHz for 1200 V products and 10 kHz for 1700 V products.
These modules are offered in buck, boost, dual buck, dual boost, dual common source, phase leg, full bridge, asymmetrical bridge, triple phase leg and triple dual common source configurations.
Current rating range from 20 A to 600 A for 600 V devices, 50 A to 400
A for 1200 V devices and from 50 A to 300 A @ for 1700 V devices, all rated
with Tc=80°C.
analogZONE Says...
We chose to look at a 1700 V power module from the extended field-stop trench-gate IGBT process range and we tried to compare it with the existing 1700 V modules that APT makes from its non-punch-through low-loss IGBT processing.
The APTGT50X170BT3 includes an input rectifier bridge, a brake and a 3-phase bridge. (A separate RTP3 version does not include the IGBT brake and diode.). The absolute maximum rating of the IGBT and diode inverter is a continuous 50 A dc forward current at 80°C with a 1 ms repetitive peak forward current of 100 A. For the diode rectifier those same numbers are 80 A and with a 10 ms repetitive peak forward current of 500 A at 25°C and 400 A at 150°C.
The solderable terminals are from a package that measures 122 mm x 62 mm x 15.7 mm (high) above the PCB with four corner M5 mounting holes with a maximum allowable screwdown torque of 3.3 n-m. The package weighs 300 g and is isolated so a heat sink can be directly mounted on it.
A Kelvin emitter is included to make driving easier and there is an internal thermistor to monitor temperature, as well as soft recovery parallel diodes. Switching frequencies can be up to 20 kHz.
The numbers for voltage drops are good and the modules can be easily paralleled. No numbers were given for stray inductance which I would supect to be slightly higher than the NPT process. There are no graphs in the data sheet so some performance characteristics are unknown.
These modules will be readily accepted for ac motor control; pricing for the new range was quoted as being from $17 to $120 in 1000-piece lots. The module looked at is going to be at the higher end of that range.