MAX16047ETN+W Maxim Integrated, MAX16047ETN+W Datasheet - Page 33

• Manufacturer Part Number: MAX16047ETN+W
• Description: Supervisory Circuits 12-Channel EEPROM-Programmable System Manager with Nonvolatile Fault Registers
• Manufacturer: Maxim Integrated
• Series: MAX16047, MAX16049r

Specifications of MAX16047ETN+W

• Number Of Voltages Monitored: 12
• Undervoltage Threshold: Adjustable
• Overvoltage Threshold: Adjustable
• Manual Reset: Resettable
• Watchdog: Watchdog
• Supply Voltage - Max: 14 V
• Maximum Power Dissipation: 3810 mW
• Supply Current (typ): 3800 uA
• Supply Voltage - Min: 3 V

The MAX16047/MAX16049 include selectable internal
100Ω pulldown resistors to ensure that tracked voltages
are not held high by large external capacitors during a
fault event. The pulldowns help to ensure that monitored
INS_ voltages are fully discharged before the next
power-up cycle is initiated. These pulldowns are high
impedance during normal operation. Set r4Eh[7:4] to ‘1’
to enable the pulldown resistors (Table 12). These pull-
Table 14. Power-Good (PG) Thresholds
System Managers with Nonvolatile Fault Registers
REGISTER/
ADDRESS
EEPROM
64h
12-Channel/8-Channel EEPROM-Programmable
______________________________________________________________________________________
BIT RANGE
[1:0]
[3:2]
[5:4]
[7:6]
00 = PG is asserted when monitored V
01 = PG is asserted when monitored V
10 = PG is asserted when monitored V
11 = PG is asserted when monitored V
00 = PG is asserted when monitored V
01 = PG is asserted when monitored V
10 = PG is asserted when monitored V
11 = PG is asserted when monitored V
00 = PG is asserted when monitored V
01 = PG is asserted when monitored V
10 = PG is asserted when monitored V
11 = PG is asserted when monitored V
00 = PG is asserted when monitored V
01 = PG is asserted when monitored V
10 = PG is asserted when monitored V
11 = PG is asserted when monitored V
down resistors may also be used with EN_OUT1–
EN_OUT4 channels not configured for closed-loop track-
ing, which is useful to discharge the output capacitors of
a DC-DC converter during shutdown. For this case, con-
figure the GPIO as an INS_ input and set the 100Ω pull-
down bit, but do not enable closed-loop tracking.
Connect the INS_ input to the output of the power supply.
DESCRIPTION
MON1
MON1
MON1
MON1
MON2
MON2
MON2
MON2
MON3
MON3
MON3
MON3
MON4
MON4
MON4
MON4
is 95% of V
is 92.5% of V
is 90% of V
is 87.5% of V
is 95% of V
is 92.5% of V
is 90% of V
is 87.5% of V
is 95% of V
is 92.5% of V
is 90% of V
is 87.5% of V
is 95% of V
is 92.5% of V
is 90% of V
is 87.5% of V
INS1
INS1
INS2
INS2
INS3
INS3
INS4
INS4
INS1
INS1
INS2
INS2
INS3
INS3
INS4
INS4
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