MAX9611EVKIT+ Maxim Integrated Products, MAX9611EVKIT+ Datasheet - Page 4

• Manufacturer Part Number: MAX9611EVKIT+
• Description: KIT EVALUATION FOR MAX9611
• Manufacturer: Maxim Integrated Products

Specifications of MAX9611EVKIT+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MAX9611 Evaluation Kit
generated to update the internal registers of the device.
The Interface group box indicates the current I²C-
compatible Device_ Address,_ Register_ Address_ Sent,
and the Data_ Sent/Received for the last read/write
operation. This data is used to confirm proper device
operation.
The device can be used in two different configurations,
op-amp mode or comparator mode. Using the part in
op-amp mode operates the transistor (M1) in its linear
region, thus limiting the current source into the LOAD
pad. Using the part in comparator mode operates M1 as
a switch, thus disconnecting the load from the VIN pad in
the event of an over-limit condition.
The MUX drop-down list is used to read the current-
sense amplifier output from the ADC (1x, 4x, 8x),
common-mode voltage, OUT voltage, SET voltage, and
die temperature. The MODE drop-down list allows the
user to choose different modes within the op-amp and
comparator configuration. If OUT_ Latch_ with_ Delay_
and_ _ Auto-Retry is selected, then a Delay_ Time and
Retry_Time group box appears in the main window. The
Delay_Time_group box has 1ms and 100us radio button
options. The Retry_Time group box has 50ms and 10ms
radio button options. See the MAX9611 IC data sheet for
a detailed description. Check the SHDN checkbox to
have the part enter shutdown mode.
Select the desired ADC reading from the MUX drop-
down list.
CSA is the current-sense amplifier input voltage. The
MUX drop-down list allows the user to select gains of
1x, 4x, or 8x, which correspond to full-scale voltages
of 440mV, 110mV, and 55mV, and LSBs of 107.5FV,
26.88FV, and 13.44FV, respectively. The RS+ and RS-
test points of the EV kit can be used to verify the data.
Common-mode voltage is the average of the voltage at
RS+ and RS- that is displayed under VCM. The common-
mode voltage range is from 0 to 57.3V and the LSB is
4_ _ _______________________________________________________________________________________
Current-Sense Input Voltage
Common-Mode Voltage
Control Register
ADC
14mV. Select 011-_Channel_B:_Common_Mode_Voltage_
from_ADC from the MUX drop-down list for this reading.
The internal op-amp or comparator output voltage can
be monitored over the 0 to 57.3V range by the ADC and
the LSB is 14mV. Select 100-_Channel_C:_OUT_Voltage_
from_ADC from the MUX drop-down list for this reading.
The OUT voltage can be verified through the OUT test
point on the EV kit.
The SET voltage (SET test point) is determined through
resistor-divider R22 and R23. The SET voltage range is
from 0 to 1.10V and has an LSB of 268FV. Select 101-_
Channel_D:_SET_Voltage_from_ADC from the MUX drop-
down list for this reading.
The die temperature can be read by the ADC by select-
ing 110-_ Channel_ E:_ Temperature_ from_ ADC from the
MUX drop-down list. The temperature range is from
-40NC to +127NC and has an LSB of +0.48NC.
All ADC data is saved to a .csv file when the Data_
Logging checkbox is checked.
There are two methods for communicating with the
device. The first is through the window shown in
Figure 1. The second is through the Advanced_ User_
Interface window shown in Figure 2. The Advanced_
User_Interface window becomes available by selecting
the Options_ |_ Interface_ (Advanced_ User) menu item
and allows execution of serial commands manually.
An Advanced_ User_ Interface_ window can be used as
a debug tool because it is capable of manually reading
and writing to every register of the device.
The MAX9611 EV kit is an assembled and tested PCB
used to evaluate the MAX9611 high-side current-sense
amplifier with an integrated 12-bit ADC and a gain block
that can be configured either as an op amp or as a
comparator.
Detailed Description of Hardware
Advanced User Interface
Data Logging
Temperature
OUT Voltage
SET Voltage