2ED100E12-F_EVAL Infineon Technologies, 2ED100E12-F_EVAL Datasheet - Page 10

• Manufacturer Part Number: 2ED100E12-F_EVAL
• Description: Power Management IC Development Tools Eval Board EconoDual
• Manufacturer: Infineon Technologies

3
3.1
The 2ED100E12-F has an integrated DC/DC converter, which generates the required secondary isolated
unsymmetrical supply voltage (+16V/-8V). Top and Bottom driver voltages are independently generated by
using one unipolar input voltage of 15V. Additionally, the power supply is protected against gate – emitter
short circuit of the IGBTs. In case a DC/DC overcurrent is detected, the output voltage drops down, the IGBT
is protected by Under Voltage Detection function and the fault is reported to the isolated 2ED100E12-F side.
3.2
The Evaluation Driver Board is dedicated for a half-bridge EconoDUAL
necessary to connect two separate PWM signals for Top (/PWMT) and Bottom (/PWMB) IGBT. The signals
need to have the correct dead time. The 2ED100E12-F does not provide automatic dead time generation
and recommended minimal dead times t
The /PWM input logic can be changed to positive logic during the assembly process or manually by replacing
the original components.
Assembly for negative PWM logic:
R
R
To obtain the positive PWM logic the necessary changes are: R
R
Figure 4
Application Note
1
3
3
,R
, R
, R
10
13
13
- 22kΩ; IC
are not assembled.
- 22kΩ, IC
Application Note
Power Supply
Input logic – /PWM signals
Schematic of the input circuit.
1
1
, IC
, IC
10
10
– SN74LVC1G14DCKR;
– SN74LVC1G17DCKR;
TD
are given in Table 3.
10
1
,R
10
– not assembled;
TM
IGBT configuration, therefore it is
Driver for EconoDUAL
Application Note
V1.0, 2006-05
AN2006-04
TM