EVDP610 Datasheet, PDF (1/6 Pages) IXYS Corporation – IXDP610 Digital PWM Controller IC Evaluation Board

EVDP610
IXDP610 Digital PWM Controller IC Evaluation Board
General Description
The IXDP610 Digital Pulse Width Modulator (DPWM) is a
programmable CMOS LSI device, which accepts digital
pulse width data from a microprocessor and generates
two complementary non-overlapping pulse width modu-
lated signals for direct digital control of a switching Power
Bridge or other electronics. See the IXDP610 data sheet
for full specifications.
The EVDP610 Evaluation Board, shown in Figure 1 below,
encompasses the serial communications hardware,
microprocessor, and IXDP610 chip all onto one board that
is easily programmable from any PC. A Graphical User
Interface (GUI) designed to run on a Windows 9X, Win-
dows 2000 or Windows NT operating system is included
with the EVDP610, providing the designer with the soft-
ware and hardware tools to immediately test and evaluate
the IXDP610 IC. A functional block diagram of the
EVDP610 is shown in Figure 2.
1.0 EVDP610 QUICK-START INSTRUCTIONS
These quick-start instructions provide a step-by-step
guide to set up and begin using the EVDP610 evaluation
board and software. Please refer to the appropriate
sections of the specification for additional instructions
and guidelines.
1.1 Installing the IXDP610 Evalution Software
To install the Evaluation Software on the comuter, place
the Evaluation Software diskette into the computer's disk
drive. Run setup.exe (or double-click on the setup icon).
Follow the instructions that appear on the screen.
1.2 Powering On the IXDP610 Evaluation Board
1. Connect +5 volts DC (+/- 5%) power to the two
screw terminals labeled TRM1 and TRM 2. TRM 1
is the power terminal and TRM 2 is the ground
terminal. When power is applied the two green
LEDs labeled D1 and D3 will turn on.
2. By default, the evaluation board firmware loads the
pulse width registers of the IXDP610 with a 0% duty
cycle on Output1 and a 100% duty cycle on Output2
(Output1 is labeled TP1 – with a white terminal
attached and Output2 is labeled TP2 – with a black
terminal attached). The LED’s labeled D4 and D5,
corresponding to Output1 and Output2 respectively,
should glow red when the output is disabled. When
the outputs are enabled, the LEDs will glow green.
1.3 Connecting the Serial Communications
1. Connect one end of the null modem cable (provided
with the EVDP610) to the male DB9 connector on
the circuit board (labeled P1) and connect the other
end to the serial port. The pin-out of the null modem
cable is shown in the figure 3 below.
Figure 1 - EVDP610 Evaluation Board
1.4 Checking Jumper Connections
1. There should be a jumper in the middle position on
JP1 (allowing the 11.059MHz clock – the same one
clocking the micro, to clock the IXDP610 chip). See
section 2.3 for more information and a detailed
drawing of the jumper positions.
2. There should be NO jumper in JP2 – installing this
jumper disables all outputs on the IXDP610 by
asserting the ODIS pin. The factory default is no
jumper in JP2.
Figure 2 - EVDP610 Functional Block Diagram
1.5 Operating the User Interface Software
1. The IXDP610 hardware must be powered on before
running the GUI. In the GUI’s initialization sequence
the GUI will try to communicate with the EVDP610
hardware. Be aware that the GUI will reset the
EVDP610 hardware as soon as it comes up and is
Copyright © IXYS CORPORATION 2001
First Release