MAX15501EVKIT+ Maxim Integrated Products, MAX15501EVKIT+ Datasheet - Page 17

• Manufacturer Part Number: MAX15501EVKIT+
• Description: KIT EVAL FOR MAX15501
• Manufacturer: Maxim Integrated Products

Specifications of MAX15501EVKIT+

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

Figure 1. Unipolar Transfer Function
The MON output provides an analog voltage signal
proportional to the output voltage in current mode and
proportional to the output current in voltage mode. Use
this signal to measure the system load presented to the
output. The full-scale signal on MON is 3V with a typical
accuracy of 10%. The signal range is typically 1.5V to 3V
in unipolar mode and 0 to 3V in bipolar mode.
In current mode, the MAX15500/MAX15501 program I
and monitor the voltage at SENSERN.
In voltage mode, the MAX15500/MAX15501 program
V
Many industrial control systems require error detection
and handling. The MAX15500/MAX15501 provide exten-
sive error status reporting.
An open-drain interrupt flag output, ERROR, pulls low
when an error condition is detected. An error register
stores the error source. Reading the error register once
R
R
OUT
LOAD
LOAD
and monitor I
FS
= V
= ((V
FS + 20%
FS + 5%
V
OUT(PROGRAMMED)
V
MON
V
MON
MON
OUT
OR I
5%FS
______________________________________________________________________________________
= 1.425V + (V
OUT
OUT
= 1.521V + 62.4 x I
- 1.425V) x 20)/I
FSMODE = DGND
.
/((V
SENSERN
FSMODE = DVDD
OUT(PROGRAMMED)
MON
Output Monitor
Error Handling
LOAD
- 1.521V)/62.4)
/20)
FS
V
AIN
Voltage-Output Conditioners
OUT
Industrial Analog Current/
resets the ERROR pin but not the error register itself,
allowing the system to determine the source of the error
and take steps to fix the error condition. After the error
condition has been fixed, read the error register for the
second time to allow the device to clear the error reg-
ister. Read the error register for the third time to verify
if the error register has been cleared. If another error
occurs after the first read, ERROR goes low again. More
information on reading and clearing the error register is
described in the SPI Interface section.
When an output short-circuit or output open-load error
occurs and disappears before the error register is read,
the intermittent bit is set in the error register. The intermit-
tent bit does not assert for brownout and overtempera-
ture error conditions.
Output Short Circuit
The output short-circuit error bit asserts when the output
current exceeds 30mA (typ) for longer than 260ms. In
current mode, this error occurs when the sense resistor
is shorted and the sense voltage is not equal to 0V. In
voltage mode, this error occurs when the load is shorted
to the supply or ground. The short-circuit error activates
the intermittent bit in the error register if the error goes
away before the error register is read.
Figure 2. Bipolar Transfer Function
FS
-FS - 20%
FS + 20%
-FS - 5%
FS + 5%
-FS
V
OUT
OR I
OUT
FSMODE = DGND
FSMODE = DVDD
50%FS
Error Conditions
FS
V
AIN
17