MAX34441EVKIT# Maxim Integrated, MAX34441EVKIT# Datasheet - Page 27

• Manufacturer Part Number: MAX34441EVKIT#
• Description: Power Management IC Development Tools MAX34441 Eval Kit
• Manufacturer: Maxim Integrated
• Type: PWM Controllersr
• Series: MAX34441r

Specifications of MAX34441EVKIT#

• Rohs: yes
• Product: Power Management Development Tools
• Tool Is For Evaluation Of: MAX34441
• Interface Type: I2C
• Maximum Operating Temperature: + 85 C
• Part # Aliases: 90-34441#K00

Note: The device only takes action if the supply is enabled. The VOUT of all enabled channels must exceed POWER_GOOD_ON
for margining to begin.
Table_9._OPERATION_Command_Byte_(When_Bit_3_of_ON_OFF_CONFIG_=_1)
Note: The device only takes action if the supply is enabled. The VOUT of all enabled channels must exceed POWER_GOOD_ON
for margining to begin.
The OPERATION command is used to turn the power supply on and off in conjunction with the CONTROL input pin. The
OPERATION command is also used to cause the power supply to set the output voltage to the upper or lower margin voltag-
es. The power supply stays in the commanded operating mode until a subsequent OPERATION command or until a change
in the state of the CONTROL pin (if enabled) instructs the power supply to change to another state. The valid OPERATION
command byte values are shown in Tables 9 and 10. The OPERATION command controls how the device responds when
commanded to change the output. When the command byte is 00h, the device immediately turns the power supply off and
ignores any programmed turn-off delay. When the command byte is set to 40h, the device powers down according to the
programmed turn-off delay. In Tables 9 and 10, “act on any fault” means that if any warning or fault on the selected power
supply is detected when the output is margined, the device treats this as a warning or fault and responds as programmed.
“Ignore all faults” means that overvoltage, overcurrent, and undervoltage warnings and faults on the selected power supply
are ignored and not reported. Any command value not shown in Tables 9 and 10 is an invalid command. If the device receives
a data byte that is not listed in Tables 9 and 10, then it treats this as invalid data, declares a data fault (set CML bit and assert
ALERT), and responds as described in the Fault Management and Reporting section.
USER_NOTE:_All_power_supplies_tagged_as_GLOBAL_supplies_(see_MFR_FAULT_RESPONSE)_should_be_turned_
on_and_off_at_the_same_time.
Table_10._OPERATION_Command_Byte_(When_Bit_3_of_ON_OFF_CONFIG_=_0)
COMMAND_BYTE
COMMAND_BYTE
A4h
A8h
A4h
A8h
00h
40h
80h
94h
98h
00h
40h
80h
94h
98h
PMBus 5-Channel Power-Supply Manager
Immediate Off (No Sequencing)
POWER_SUPPLY_ON_OR_OFF
POWER_SUPPLY_ON_OR_OFF
Soft Off (with Sequencing)
Command Has No Effect
Command Has No Effect
Command Has No Effect
Command Has No Effect
Command Has No Effect
Command Has No Effect
Command Has No Effect
and Intelligent Fan Controller
On
On
On
On
On
Margin High (Act On Any Fault)
Margin High (Act On Any Fault)
Margin Low (Act On Any Fault)
Margin Low (Act On Any Fault)
Margin High (Ignore All Faults)
Margin High (Ignore All Faults)
Margin Low (Ignore All Faults)
Margin Low (Ignore All Faults)
MARGIN_STATE
MARGIN_STATE
Margin Off
Margin Off
N/A
N/A
N/A
N/A
OPERATION (01h)
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