Renesas ISL28023EVAL1Z User Manual

ISL28023EVAL1Z, ISL28023EVAL2Z
ISL28023 Precision Digital Power Monitor Evaluation Kit
Introduction
The Precision Digital Power Monitor (DPM) Evaluation Kit is a
three evaluation board design that demonstrates the
functionality of the ISL28023. The ISL28023 is an IC with a
16-bit Analog-to-Digital Converter (ADC), an 8-bit
Digital-to-Analog Converter (DAC), and analog comparators
that monitors for undervoltage, overvoltage and overcurrent
conditions. The IC is serially controlled through an I
device abides by the PMBus standards.
The DPM Evaluation Kit is accompanied by a graphical user
interface (GUI) that allows the user to configure ISL28023 for
monitoring bus voltage and current in a specific application.
The GUI has a data save feature allowing the transfer of
measurement data to other software application for analysis.
The ISL28023 DPM Evaluation Kit consists of three boards; a
USB dongle, a generic ISL28023EVAL1Z board and an
ISL28023EVAL2Z demonstration board.
Dongle Evaluation Board
(ISLUSBPWRDONGLE1Z)
The dongle board mates from a PC to the ISL28023 via a
microcontroller. The microcontroller converts USB commands
2
sourced from the PC to an I C header. The I
SDA) are connected to the right angle header at the edge of
the board. The dongle board has a circuit that converts the USB
supply voltage to 3.3V. The 3.3V supply circuit has an
ISL28022 connected to monitor the current sourced by the
supply. Each circuit has been optimized to measure 100mA at
full scale. The 3.3V supply output and the SDA and SCL lines of
2
C bus are routed to the right angle connector.
the I
USB DONGLE
AN1932 Rev 3.00
February 1, 2016
2
C bus. The
2
C pins (SCL and
ISL28023EVAL1Z
GENERIC EVAL BOARD
FIGURE 1. ISL28023 EVALUATION KIT EVALUATION BOARDS
USER'S MANUAL
ISL28023 Generic Board (ISL28023EVAL1Z)
The generic ISL28023 board is a nonconfigured ISL28023 that
connects the analog inputs to the outside world. The board
allows a user to build a system that requires voltage, current or
power monitoring around the ISL28023. The analog inputs
(VINP, VINM and VBUS) of the ISL28023 accept input voltages
ranging from 0V to 60V. The ISL28023 allows the user to
uniquely configure the slave address via jumper selections.
The ISL28023 can be powered from a user defined source or
the 3.3V supply generated from the USB voltage. The
acceptable power supply voltage range for the ISL28023 is
from 3V to 5.5V. The external clock/interrupt pin is routed to
the outside world via a jumper selection. The maximum
measurable input differential (VINP - VINM) is ±80mV. The
differential voltage between the VINP and VINM pins can
withstand a magnitude of 60V. The differential supply
tolerance allows for the debugging of catastrophic circuit
events.
ISL28023 Demo Board (ISL28023EVAL2Z)
A peripheral circuit is required to demonstrate the functionality
of the ISL28023. The ISL28023 is paired up with a buck
regulator (ISL85415) and some sample loads to measure the
current and efficiency calculations of the regulator to the load.
The buck circuit allows the user to define a unique load that
connects to the regulator. The user can define the switching
frequency of the regulator by programming a resistor value
into the ISL23345 digital potentiometer. All features of the
ISL28023 are available.
Ordering Information
PART NUMBER
ISL28023EVAL1Z Evaluation Board
ISL28023EVKIT1Z Evaluation Kit
ISL28023EVAL2Z
GENERIC EVAL BOARD
AN1932
Rev 3.00
February 1, 2016
DESCRIPTION
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