MAX5960L Evaluation Kit/
Evaluation System
Channel C Enable/Disable Switches
The MAX5960L EV kit features two switches to
enable/disable the 12V/3.3V main and 3.3V auxiliary
channel C outputs. The switches can also be used to
reset a channel that has latched off after a fault has
occurred. Table 4 lists the various switch options.
Channel D Enable/Disable Switches
The MAX5960L EV kit features two switches to
enable/disable the 12V/3.3V main and 3.3V auxiliary
channel D outputs. The switches can also be used to
reset a channel that has latched off after a fault has
occurred. Table 5 lists the various switch options.
Control Methods, Other Configurations,
and I/O Expander
Fault Resetting
The MAX5960L EV kit features slide switches to reset a
latched fault at each channel. The switch resets the
respective EV kit channel and unlatches the fault when
toggled from ON to OFF. See Tables 2 through 5 for
resetting the respective channel. Refer to the
MAX5960L IC data sheet for additional functions of the
MAX5960L ON_ pins.
Fault Timeout and POR Periods
The MAX5960L fault timeout period is configured for
10ms and can be reconfigured to a new timeout period
by installing surface-mount resistor R17. The MAX5960L
POR timeout period is configured for 160ms; however, a
new POR timeout period can be reconfigured by
installing surface-mount resistor R18. Install a 0 Ω resis-
tor at R18 to bypass the POR time period delay. Refer to
MAX5960L IC data sheet Power-Good (PWRGD_) sec-
tion for selecting the values of resistors R17 or R18.
Table 3. Channel B Switch Functions
SWITCH
SW7
SW8
SWITCH STATE
ON
OFF
ON
OFF
MAX5960L PIN CONNECTION
ONB pin pulled high
ONB pin pulled low
AUXONB pin pulled high
AUXONB pin pulled low
MAX5960L OPERATION
Enable channel B main outputs
Disable channel B main outputs
Enable channel B 3.3V auxiliary output
Disable channel B 3.3V auxiliary output
Table 4. Channel C Switch Functions
SWITCH
SW9
SW10
SWITCH STATE
ON
OFF
ON
OFF
MAX5960L PIN CONNECTION
ONC pin pulled high
ONC pin pulled low
AUXONC pin pulled high
AUXONC pin pulled low
MAX5960L OPERATION
Enable channel C main outputs
Disable channel C main outputs
Enable channel C 3.3V auxiliary output
Disable channel C 3.3V auxiliary output
Table 5. Channel D Switch Functions
SWITCH
SW11
SW12
SWITCH STATE
ON
OFF
ON
OFF
MAX5960L PIN CONNECTION
OND pin pulled high
OND pin pulled low
AUXOND pin pulled high
AUXOND pin pulled low
MAX5960L OPERATION
Enable channel D main outputs
Disable channel D main outputs
Enable channel D 3.3V auxiliary output
Disable channel D 3.3V auxiliary output
_______________________________________________________________________________________
7
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