Evaluation Board Hardware; Switch, Jumper, And Led Functions - Analog Devices EVAL-ADM1075EBZ User Manual

EVAL-ADM1075EBZ User Guide

EVALUATION BOARD HARDWARE

SWITCH, JUMPER, AND LED FUNCTIONS

Table 2. Connector Functions
Connector Description
RTN IN, −48V IN Hot-swap line voltage inputs that also power the board components. Input voltage is 36 V to 75 V.
RTN OUT, −48V OUT Hot-swap line voltage outputs.
J6 5 V auxiliary board voltage. Not required; emitter follower circuit used to generate 5 V from 48 V input.
SK1, SK2 Bottom and top cascade connectors; connect with a Micro-MaTch ribbon cable to link with other
EVAL-ADM1075EBZ
J9 I 2 C/PMBus communication dongle connector. From top down: VEE, SDA, SCL. Note that the dongle should only be
connected at this side (primary side) if using a 0 V to 48 V supply. If using a −48 V to 0 V supply, the USB port can be
damaged. This 3-pin connector is designed to be used with the
USB-SDP-CABLEZ.
J7 Isolated side I
designed to be used with the
J8 5 V isolation supply voltage (power supply).
J5 5 V isolation supply voltage (mini-USB).
SK3 10-way isolated side connector for USB-SDP-CABLEZ; I
Table 3. Switch Functions
Switch Description
S_SHDN2 Toggle switch to shut down hot swap. Right = hot swap enabled, and left = hot swap disabled.
S_SHDN Push-button switch to generate shutdown. Can be used to clear faults. Note that SHDN has a seven-retry counter. After
seven SHDN events, GPO2 goes active low. A restart or clear via PMBus is required to enable the hot swap again.
S_DeLATCH Push-button switch to clear latch after seven shutdown events (not on Rev. 0 boards).
S_RST Push-button switch to generate 10 sec restart.
Table 4. LED Functions
LED Description
D_INPUT Voltage input > ~10 V detected. Active high; green.
D_LATCH LATCH, active low; red.
D_PWRGD PWRGD, active low; green.
D_SPLYGD SPLYGD, active low; green.
D_GPO1 GPO1/ALERT1/CONV, active low; yellow.
D_GPO2 GPO2/ALERT2, active low; yellow.
D_ISO Isolation 5 V power supply. Active high; blue (not on Rev. 0 boards).
Table 5. On-Board ICs
IC Description
U1 ADM1075
U2 64 kb I
U3 ADuM3200, dual-channel digital isolator
U4 ADuM1250, dual I
U5 ADuM5404, quad-channel isolator with integrated dc-to-dc converter
UT1 to UT3 ADT75, ±2°C accurate, 12-bit digital temperature sensor, sensing temperature on the MOSFETs
Table 6. Retry Configuration
Retry Scheme
No Retries (Latch Off )
7 Retries, Then Latch Off (Default)
1 Retry Every 10 Seconds
7 Retries Every 10 Seconds
boards.
2 C/PMBus communication dongle connector. From top down: SCL, SDA, GND. This 3-pin connector is
USB-SMBUS-CABLEZ
main IC
2 C EEPROM
2 C isolator
R_7retry
Not populated
0 Ω
Not populated
Not populated
USB-SMBUS-CABLEZ
dongle. Not required if using
2 C communication and 5 V supply.
BOM Component
R_1rty_10s
Not populated
Not populated
0 Ω
Not populated
Rev. C | Page 5 of 19
UG-304
dongle. Not required if using
USB-SDP-CABLEZ.
R_7rty_10s
Not populated
Not populated
Not populated
0 Ω