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DESCRIPTION
The DJT090A0X43-SRPZ (later refer as DJT090) Digital DLynxII
TM
power modules are non-isolated
dc-dc converters that can deliver up to 90A of output current. These modules operate over a 7 to
14.4Vdc input range and provide a precisely regulated output voltage from 0.5 to 2Vdc. The module
employs a novel charge mode control which ensures loop stability, provides fast transient response
and reduces amount of required output capacitance. Up to eight modules can be connected in
parallel to form a high current rail. The key features include: digital PMBus
TM
interface, remote
ON/OFF, output voltage sequencing, tracking of an external analog signal, synchronization to an
external clock, pre-biased start up, cycle-by-cycle output overcurrent protection, input and output
under-voltage and over-voltage protections, under-temperature and over-temperature protections
and more. The module has an extensive set of PMBus
TM
commands for both control and monitoring
of the system parameters. System diagnostic is facilitated by a black-box event recorder that will
log the selected fault events and will provide valuable inside for debugging. The DJT090 power
module is highly configurable, and yet easy to use. For more details refer to the product datasheet.
DJT090A0X43-SRPZ parallel evaluation board (later refer as EVM) provides user a quick start for DC
and transient analysis up to 720A. For transient analysis, an on-board pulse load is provided for ease
use. Alternatively, LoadSlammer
TM
can be used at user’s choice.
PRECAUTION
The DJT090 parallel EVM can deliver up to 720A DC current. Any unintended connection can cause
danger to both the EVM and user, user precaution is advised. DJT090 parallel EVM can only be
evaluated at room temperature of 25 degree Celsius, and is assumed to have proper air flow for heat
dissipating. DJT090 has its own over temperature protection, but the excess heat on the output
terminal can potentially damage the PCB. Thus, for continuous 360A and below, user is
recommended to use standard ring connectors for conducting current. Short time operation with
ring connector along with sufficient air flow is tested for conducting 720A. Consult local FAEs for
details. Do NOT apply reverse voltage, larger than -0.5V, on the output terminal, this will damage the
EVM.
GETTING STARTED
Required Equipment and Accessory
DJT090 parallel EVM is preconfigured which provides maximum ease to evaluate. See below list for
required equipment and accessory.
•
Power supply (20V/100A and up is recommended)
•
DC Load (Chroma 63600 Modular DC Electronics Load is recommended, 80V/80A/10-
channel)
•
ABB USB-I2C Dongle
•
PC with DPI-CLI Tool
