MAX34441ETL+ Maxim Integrated Products, MAX34441ETL+ Datasheet - Page 32
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MAX34441ETL+
Manufacturer Part Number
MAX34441ETL+
Description
Supervisory Circuits PMBUS 5-CH POW-SUPPLY MANAGER & INTELLIGENT FAN CONTLR
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX34441ETL.pdf
(53 pages)
Specifications of MAX34441ETL+
Internal Hysteresis
Yes
Operating Temperature Range
- 40 C to + 85 C
Output Type
Push-Pull
Number Of Voltages Monitored
5
Watchdog
Yes
Supply Voltage (max)
3.3 V
Supply Current (typ)
8 A
Maximum Power Dissipation
2857.1 mW
Mounting Style
SMD/SMT
Maximum Operating Temperature
+ 85 C
Package / Case
TQFN-40
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The VOUT_OV_FAULT_LIMIT command sets the value of the output voltage that causes an output overvoltage fault.
The 2 data bytes are in DIRECT format. In response to the VOUT_OV_FAULT_LIMIT being exceeded, the device does
the following:
1) Sets the VOUT_OV bit in STATUS_BYTE.
2) Sets the VOUT_OV and VOUT bits in STATUS_WORD.
3) Sets the VOUT_OV_FAULT bit in STATUS_VOUT.
4) Responds as specified in the MFR_FAULT_RESPONSE.
5) Notifies the host through ALERT assertion (if enabled in MFR_MODE).
The VOUT_OV_WARN_LIMIT command sets the value of the output voltage that causes an output-voltage high warn-
ing. This value is typically less than the output overvoltage threshold in VOUT_OV_FAULT_LIMIT. The 2 data bytes are
in DIRECT format. In response to the VOUT_OV_WARN_LIMIT being exceeded, the device does the following:
1) Sets the NONE OF THE ABOVE bit in STATUS_BYTE.
2) Sets the NONE OF THE ABOVE and VOUT bits in STATUS_WORD.
3) Sets the VOUT_OV_WARN bit in STATUS_VOUT.
4) Notifies the host using ALERT assertion (if enabled in MFR_MODE).
The VOUT_UV_WARN_LIMIT command sets the value of the output voltage that causes an output-voltage low warning.
This value is typically greater than the output undervoltage fault threshold in VOUT_UV_FAULT_LIMIT. This warning
is masked until the output voltage reaches the programmed POWER_GOOD_ON voltage at startup, and also during
turn-off when the power supply is disabled. The 2 data bytes are in DIRECT format. In response to violation of the
VOUT_UV_WARN_LIMIT, the device does the following:
1) Sets the NONE OF THE ABOVE bit in STATUS_BYTE.
2) Sets the NONE OF THE ABOVE and VOUT bits in STATUS_WORD.
3) Sets the VOUT_UV_WARN bit in STATUS_VOUT.
4) Notifies the host using ALERT assertion (if enabled in MFR_MODE).
The VOUT_UV_FAULT_LIMIT command sets the value of the output voltage that causes an output undervoltage fault.
This fault is masked until the output voltage reaches the programmed POWER_GOOD_ON voltage at startup, and
also during turn-off when the power supply is disabled. The VOUT_UV_FAULT_LIMIT threshold is also used to deter-
mine if TON_MAX_FAULT_LIMIT is exceeded. The 2 data bytes are in DIRECT format. In response to violation of the
VOUT_UV_FAULT_LIMIT, the device does the following:
1) Sets the NONE OF THE ABOVE bit in STATUS_BYTE.
2) Sets the NONE OF THE ABOVE and VOUT bits in STATUS_WORD.
3) Sets the VOUT_UV_FAULT bit in STATUS_VOUT.
4) Responds as specified in MFR_FAULT_RESPONSE.
5) Notifies the host using ALERT assertion (if enabled in MFR_MODE).
PMBus 5-Channel Power-Supply Manager
and Intelligent Fan Controller
32
VOUT_OV_FAULT_LIMIT (40h)
VOUT_UV_FAULT_LIMIT (44h)
VOUT_OV_WARN_LIMIT (42h)
VOUT_UV_WARN_LIMIT (43h)