MAX16047ACB+ Maxim Integrated Products, MAX16047ACB+ Datasheet - Page 33

• Manufacturer Part Number: MAX16047ACB+
• Description: IC EE-PROG SYS MGR 12CH 64-TQFP
• Manufacturer: Maxim Integrated Products
• Type: System Managerr

Specifications of MAX16047ACB+

• Number Of Voltages Monitored: 12
• Output: Open Drain, Push-Pull
• Reset: Active Low
• Reset Timeout: Adjustable/Selectable
• Voltage - Threshold: Adjustable/Selectable
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP Exposed Pad, 64-eTQFP, 64-HTQFP, 64-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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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