MAX34446EVKIT# Maxim Integrated, MAX34446EVKIT# Datasheet - Page 16

• Manufacturer Part Number: MAX34446EVKIT#
• Description: Supervisory Circuits MAX34446 Eval Kit
• Manufacturer: Maxim Integrated
• Series: MAX34446r

Specifications of MAX34446EVKIT#

• Rohs: yes
• Number Of Voltages Monitored: 4
• Output Type: Active High, Active Low, Open Drain, Push-Pull
• Watchdog: Watchdog
• Supply Voltage - Max: 5.5 V
• Supply Current (typ): 3 mA
• Supply Voltage - Min: 2.7 V
• Part # Aliases: 90-34446#K00

Figure 1. PGn and FAULTn Output After a Channel is Enabled
Whenever a channel (voltage, current, or temperature)
is enabled (V
or by PMBus command) the channel’s FAULTn signal is
asserted if the FAULT_EN bits in MFR_FAULT_RESPONSE
are set so that the device responds to a fault or warn-
ing. If enabled, the FAULTn pin is not released until all
measurements pass. Also, prior to being allowed to set
Maxim Integrated
Fault Response When a Channel
DD
cycle, or hardware or software reset,
FORCE PGn PINS LOW ON ALL CHANNELS CONFIGURED TO MONITOR VOLTAGE
ON VOLTAGE CHANNELS, IS THE MEASURED VOLTAGE > POWER_GOOD_ON?
IS THE MEASURED PARAMETER WITHIN FAULT LIMITS?
(ALSO INCLUDES WARNING LIMITS IF FAULT_EN = 11)
MEASURE THE VOLTAGE/CURRENT/TEMPERATURE
REGULAR PARAMETER MONITORING BEGINS
DISABLE WRITES TO MFR_NV_FAULT_LOG
PMBus Power-Supply Data Logger
ENABLE WRITES TO MFR_NV_FAULT_LOG
RESET COMPLETE AND ENABLE PIN HIGH
(OTHER PGn PINS ARE HIGH IMPEDANCE)
is Enabled
IF FAULT_EN ≠ 0X, ASSERT FAULTn PIN
DEASSERT THE FAULTn PIN
NO
YES
a fault/warning status bit or write a nonvolatile fault log
when a fault/warning occurs, the channel must first pass
this particular fault or warning.
Figure 1
to monitor a channel after the channel is enabled.
Figure 2
a channel is enabled and as faults and warnings pass
and fail.
voltage faults and warnings, but these same steps
apply to other monitored parameters as well.
describes the steps that the MAX34446 takes
Figure 2
NO
explains how the MAX34446 responds after
AFTER MFR_PG_DELAY
SET PGn PIN HIGH
YES
shows a voltage channel and over-
MAX34446
16