MAX5952AEVCMAXQU Maxim Integrated, MAX5952AEVCMAXQU Datasheet - Page 12

• Manufacturer Part Number: MAX5952AEVCMAXQU
• Description: Hot Swap & Power Distribution Evaluation Kit/Evaluation System for the MAX5952A
• Manufacturer: Maxim Integrated

Specifications of MAX5952AEVCMAXQU

• Product: Controllers & Switches
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 1.71 V
• Operating Temperature Range: - 40 C to + 85 C
• Power Dissipation: 941 mW
• Supply Current: 4.8 mA

MAX5952A Evaluation Kit/Evaluation System
The MAX5952A EV kit includes jumpers JU27–JU30 to
disconnect each port’s -48V power independently for
connection to an external network interface circuit.
Additionally, the respective jumper’s pins can be utilized
to measure the voltage or current for the respective port.
Table 9 lists the specific jumper for each port. Each
jumper is shorted on the bottom layer of the PCB.
The MAX5952A EV kit features four pushbutton switch-
es (S1–S4) to independently shut down each channel’s
power circuit. A reset pushbutton (S5) is also provided
to reset the MAX5952A. Header J2 (6-pin 0.100in cen-
ter header) is available for monitoring the SHDN1,
SHDN2, SHDN3, SHDN4, and RESET signals routed to
the MAX5952A pins. Digital ground is provided at the
header on pin 6. See Table 10, which lists the specific
switch and header pin signals that can be interfaced
with a ribbon cable or test leads. These signals are not
isolated and are referenced to DGND on the EV kit.
Table 9. -48V Port Power Interface Jumper Functions
* Pin close to U1.
Table 10. Switch and Header J2 Pin
Signals
12
-48V Port Power Interface or Voltage Measurement
PORT
Port 1
Port 2
Port 3
Port 4
______________________________________________________________________________________
SWITCH
S1
S2
S3
S4
S5
—
JUMPER
JU27
JU28
JU29
JU30
SIGNAL
SHDN1
SHDN2
SHDN3
SHDN4
RESET
DGND
SHDN and RESET Signals
PCB TRACE SHORT
Shorting trace intact
Shorting trace intact
Shorting trace intact
Shorting trace intact
Cut open
Cut open
Cut open
Cut open
HEADER J2 PIN
1
2
3
4
5
6
Normal operation
-48V_1 power available at pin 1* only
Normal operation
-48V_2 power available at pin 1* only
Normal operation
-48V_3 power available at pin 1* only
Normal operation
-48V_4 power available at pin 1* only
The AC disconnect detection function requires that the
EV kit’s DGND be connected directly to GND. If the AC-
disconnect detection function is not required, resistor
R72, which shorts DGND to GND, can be removed.
Removing resistor R72 allows DGND to be referenced to
a voltage potential anywhere from V
Additionally, when resistor R72 is removed, the appropri-
ate AC detection jumper tables must be set and the
OSC_IN pin on the MAX5952A must be floating by
removing jumper JU7. See Tables 4, 7, and 8 for the
appropriate jumper settings to bypass the AC detection
function. Refer to the AC Disconnect Monitoring section
in the MAX5952 IC data sheet for additional information.
If the AC-disconnect detection function is required again,
install a 0Ω ±5%, 1206 case size surface-mount resistor
at the R72 pads and set the appropriate jumpers.
A mouse or the keyboard’s tab key is used to navigate
various items on the main window. The MAX5952A EV
kit software features window tabs to select a
Configuration, Events and Status, or BitMap
Controls window. Most of the main window’s available
functions and a few more can be evaluated by using
the pulldown menu. The left status bar at the bottom of
the main window provides the CMAXQUSB interface
board status. The center status bar provides the current
EV kit and macro engine status.
Bypassing AC Disconnect and the DGND-to-GND
EV KIT OPERATION
Detailed Description
Connection (Resistor R72)
EE
of Software
to (V
EE
+ 60V).