MAX5952AEVKIT Maxim Integrated, MAX5952AEVKIT Datasheet - Page 9

• Manufacturer Part Number: MAX5952AEVKIT
• Description: Power Management IC Development Tools Evaluation Kit/Evaluation System for the MAX5952A
• Manufacturer: Maxim Integrated
• Series: MAX5952r

Specifications of MAX5952AEVKIT

• Product: Controllers & Switches

The MAX5952A EV kit features a 3-pin jumper (JU5) to
set the MAX5952A in midspan or signal mode. Table 2
lists the jumper options for the two modes used to
detect a valid PD connected to the PSE-respective
Ethernet output port. Refer to the MAX5952 IC data
sheet for more information on the modes.
The MAX5952A EV kit features a 3-pin jumper JU6 to
set the MAX5952A’s initial startup operational mode.
After startup, data sent to the mode register (0x12)
reconfigures the operational mode of the MAX5952A.
Table 3 lists the jumper options.
The MAX5952A EV kit features a 3-pin jumper (JU7) to
configure the MAX5952A’s oscillator input at the
OSC_IN pin. The oscillator is used for AC-disconnect
monitoring of the PD. Table 4 lists the jumper options for
the two oscillator configurations available on the EV kit.
Table 2. Jumper JU5 Functions
Table 3. Initial Startup Operational Mode
LOCATION
LOCATION
SHUNT
1 and 2
2 and 3
SHUNT
1 and 2
2 and 3
JU6
MAX5952A Evaluation Kit/Evaluation System
Operational Modes (Automatic, Shutdown)
AC Disconnect Monitoring Oscillator Input
Connected to
VDIG with
resistor R15
Connected to
DGND with
resistor R15
AUTO PIN
Connected to VDIG with
resistor R14
Connected to DGND
with resistor R14
_______________________________________________________________________________________
MIDSPAN PIN
Midspan/Signal Mode Selection
STATUS BITS
REGISTER
MODE
(0x12)
0xFF
0x00
MAX5952A MODE
Midspan mode
Signal mode
O PER A T I O N A L
Automatic
Shutdown
M O D E
The MAX5952A EV kit features a jumper to set the EV
kit’s on-board 100Hz oscillator modes of operation.
Table 5 lists the selectable jumper options to configure
the 100Hz oscillator.
The MAX5952A EV kit features PCB pads and a jumper
to interface directly with a microcontroller. The
2 x 5-pin jumper JU9 has shorting connections on the
bottom layer that must be cut open to disable the opti-
cal coupler interface for nonisolated evaluation. The
jumper shorting connections must be in place for evalu-
ating an isolated stand-alone microcontroller interface.
Table 6 lists the selectable jumper options.
Table 4. Jumper JU7 Functions
Table 5. Jumper JU8 Functions
* See the Bypassing AC Disconnect and the DGND-to-GND
Connection (Resistor R72) section.
LOCATION
LOCATION
2 and 3*
SHUNT
1 and 2
SHUNT
1 and 2
2 and 3
Connected to VDIG_F
Connected to GND
Connected to
OSC_INPUT BNC
connector
Connected to EV kit
on-board 100Hz
oscillator
MAX5952A OSC_IN
Stand-Alone Microcontroller Interface
U4, SHDN PIN
PIN
100Hz Oscillator Shutdown
(Isolated/Nonisolated)
detection using EV kit
100Hz OSCILLATOR
on-board 100Hz
detection using
external 100Hz
AC disconnect
AC disconnect
EV KIT MODE
Shutdown
oscillator
oscillator
Running
MODE
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