Panasonic PGA26E07BA-SWEVB006, Руководство пользователя

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PGA26E07BA-SWEV
B006 Ver. 1.2
11
Figure 8: Usage of coil wire
Measurement Procedures
Initial steps:
Do all the necessary connection between the
evaluation board, components and equipment.

Connect DC power
①
to P/N of the board
with the terminal block.

Connect pulse generator to the IN+/GND
terminal of the board.

The IN- terminal must be shorted to GND
and not possible to input any signal.

Connect DC power
②
to VCC/GND terminal
of the board.

Probe the point where you want to monitor
and observe the waveform using oscilloscope.
Be careful not to short with other parts. Use the coil wire fixture mounted on the evaluation
board for VGS, VDS1 & VDS2 monitoring.
Start-up:

Set up the pulse generator with the amplitude 0-5V and having the double pulse profile as
shown below:
Table 4: Double Pulse Setting with L=95uH
Figure 9: Double Pulse Profile

Again, ensure that the pulse generated occurs only in the burst mode. If the pulse is generated
continuously, the transistor will be damaged by high current flows.

Set the DC power
②
to 12V gradually.

Check VGS waveform when a double pulse is inputted from pulse generator. Please carry out
this step with DC power
①
is set to 0V.

Then, the voltage of DC power
①
is gradually increased from 0V to predetermined voltage
(400V). Monitor the VDS1 voltage with oscilloscope and confirm that the VDS1 voltage rises to
the set value.

Input a double pulse with the pulse generator again and check the VGS, VDS1 and IL
waveform.

Observation of waveform will be easier if the trigger is applied at the rising / falling edge of
VGS or VDS1 as shown on Figure 9 above.

If different inductor value is used other than the one provided, please set the pulse width until
the desired IL value is achieved.
IL #1
2.5A 0.6us
5A 1.3us
10A 2.6us
15A 3.8us
：
Monitoring Point
2.5A/5A/10A/15A
IL
Drive Signal
VDS
0V
5V
#1
5u
s
0.8us