DESCRIPTION
The EPC9003 development board is a 200 V maximum device volt-
age, 5 A maximum output current, half bridge with onboard gate
drives, featuring the EPC2010 enhancement mode (eGaN?) field
effect transistor (FET). The purpose of this development board is
to simplify the evaluation process of the EPC2010 eGaN FET by
including all the critical components on a single board that can be
easily connected into any existing converter.
The EPC9003 development board is 2” x 1.5” and contains two
EPC2010 eGaN FET in a half bridge configuration using two
Table 1: Performance Summary (TA = 25°C)
www.epc-co.com
Texas Instruments LM5114 gate drivers as well as supply and
bypass capacitors. The board contains all critical components
and layout for optimal switching performance. There are also vari-
ous probe points to facilitate simple waveform measurement and
efficiency calculation. A complete block diagram of the circuit is
given in Figure 1.
For more information on the EPC2010s eGaN FET please refer to
the datasheet available from EPC at www.epc-co.com. The data-
sheet should be read in conjunction with this quick start guide.
SYMBOL PARAMETER
CONDITIONS
MIN
MAX
UNITS
V DD
V IN
V OUT
I OUT
Gate Drive Input Supply Range
Bus Input Voltage Range
Switch Node Output Voltage
Switch Node Output Current
7
12
150
200
5*
V
V
V
A
V PWM
PWM Logic Input Voltage Threshold
Minimum ‘High’ State Input Pulse Width
Minimum ‘Low’ State Input Pulse Width
Input ‘High’
Input ‘Low’
VPWM rise and fall time < 10ns
VPWM rise and fall time < 10ns
3.5
0
60
500 #
6
1.5
V
V
ns
ns
* Assumes inductive load, maximum current depends on die temperature – actual maximum current with be subject to switching frequency, bus voltage and thermals.
# Dependent on time needed to ‘refresh’ high side bootstrap supply voltage.
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