EPC9150 Development Board Quick Start Guide

PublishTime：2021-04-28

The EPC9150 demonstration board is primarily intended to drive laser diodes with high current pulses with total pulse widths of < 3 ns possible (half amplitude full width). The board is shipped with a EPC2034C enhancement mode (eGaN®) field effect transistor (FET). The EPC2034C is a 200 V FET capable of current pulses up to 214 A. The EPC9150 ships with the EPC9989 interposer board. The EPC9989 has a collection of break-away 5 mm square interposer PCBs with footprints for different lasers and a collection of other footprints. The use of the interposers allows many different lasers or other loads to be mounted while still being able to use the EPC9150. The boards do not include a laser diode or load, which must be supplied by the user.
The power stage of the EPC9150 comprises a ground-referenced eGaN FET driven by a Texas Instruments LMG1020 gate driver. The printed circuit board is designed to minimize the power loop inductance while maintaining mounting flexibility for the laser diode or other load. It includes multiple on-board passive probes for voltages and discharge capacitor current, and is equipped with high bandwidth SMA connectors for input and sensing. In addition, the board includes a narrow pulse generator capable of sub-nanosecond precision, or the user can simply send the input to the gate drive directly. As shipped, the board is designed to operate from 3.3 V logic, but is equipped with both a logic level translator and a differential receiver to accommodate different use cases. Finally, the board can also be used for other applications requiring a ground-referenced eGaN FET, e.g. Class E amplifiers or similar. A complete block diagram of the circuit is given in Figure 1, and a detailed schematic in Figures 7, 8, and 9.
For more information on the EPC2034C eGaN FET, please refer to the datasheet available from EPC at www.epc-co.com. The datasheet should be read in conjunction with this quick start guide. In addition, EPC provides an application note: AN027 eGaN FETs for Lidar – Getting the Most Out of the EPC9126 Laser Driver. While the note discusses Rev. 2 of the EPC9126, most of the methods and analysis are applicable to the EPC9150.

Brand of Product：	EPC
Part#：	EPC9150 、 EPC2034C More Part#
Product Category：	Development Board More
Application：	More
Data Type：	User's Guide More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	2021
Version Number：	Revision 1.0
Data Encoding：
Data Size：	954 KB

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