MAX5945EVKIT Maxim Integrated, MAX5945EVKIT Datasheet - Page 10

• Manufacturer Part Number: MAX5945EVKIT
• Description: Power Management IC Development Tools Evaluation Kit/Evaluation System for the MAX5945
• Manufacturer: Maxim Integrated
• Series: MAX5945r

MAX5945 Evaluation Kit/Evaluation System
Table 7. AC Disconnect Jumper Functions
*See the Bypassing AC Disconnect and the DGND-to-GND Connection (Resistor R72) section.
Table 8. AC Detection RC Jumper Functions
*See the Bypassing AC Disconnect and the DGND-to-GND Connection (Resistor R72) section.
Table 9. -48V Port Power Interface Jumper Functions
*The pin closest to U1 is pin1.
The MAX5945 EV kit features jumpers JU19–JU22 to
bypass the AC detection RC network when AC load dis-
connect detection is not needed. The inclusion of this RC
network does not affect other circuit parameters. Table 8
lists the selectable jumper options to reconfigure each
port’s AC detection network. See Table 7 above for
bypassing the respective port’s AC disconnect diode.
10
PORT
Port 1
Port 2
Port 3
Port 4
PORT
Port 1
Port 2
Port 3
Port 4
PORT
Port 1
Port 2
Port 3
Port 4
______________________________________________________________________________________
JUMPER
JU19
JU20
JU21
JU22
JUMPER
JU27
JU28
JU29
JU30
JUMPER
JU15
JU16
JU17
JU18
POSITION
Installed
Installed
Installed
Installed
SHUNT
AC Detection RC Network
Open*
Open*
Open*
Open*
PC BOARD TRACE SHORT
SHUNT POSITION
Shorting trace intact
Shorting trace intact
Shorting trace intact
Shorting trace intact
Installed*
Installed*
Installed*
Installed*
Cut open
Cut open
Cut open
Cut open
Open
Open
Open
Open
RC network R22/C5 bypassed.
RC network R22/C5 active, AC disconnect function can be used.
RC network R26/C8 bypassed.
RC network R26/C8 active, AC disconnect function can be used.
RC network R34/C13 bypassed.
RC network R34/C13 active, AC disconnect function can be used.
RC network R35/C15 bypassed.
RC network R35/C15 active, AC disconnect function can be used.
AC disconnect diode D1 active, AC disconnect function can be used.
AC disconnect diode D1 bypassed, no AC disconnect function.
AC disconnect diode D2 active, AC disconnect function can be used.
AC disconnect diode D2 bypassed, no AC disconnect function.
AC disconnect diode D3 active, AC disconnect function can be used.
AC disconnect diode D3 bypassed, no AC disconnect function.
AC disconnect diode D4 active, AC disconnect function can be used.
AC disconnect diode D4 bypassed, no AC disconnect function.
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 MAX5945 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 PC board.
-48V Port Power Interface or Voltage Measurement
AC DETECTION RC NETWORK
AC DISCONNECT RECTIFIER DIODE
EV KIT OPERATION