MAX6884ETP MAXIM [Maxim Integrated Products], MAX6884ETP Datasheet - Page 8

• Manufacturer Part Number: MAX6884ETP
• Description: EEPROM-Programmable, Hex Power-Supply Supervisory Circuits
• Manufacturer: MAXIM [Maxim Integrated Products]

EEPROM-Programmable, Hex
Power-Supply Supervisory Circuits
8
MAX6884
_______________________________________________________________________________________
10
11
12
—
13
14
15
16
17
7
8
9
PIN
MAX6885
11, 12
10
13
14
15
16
17
—
—
7
8
9
MARGIN
AUXIN
NAME
REFIN
SDA
N.C.
DBP
SCL
V
IN6
IN5
IN4
A0
CC
Margin Input. MARGIN holds RESET, UV/OV, and WDO in their existing states when
MARGIN is driven low. Leave MARGIN unconnected or connect to DBP if unused.
MARGIN is internally pulled up to DBP through a 10µA current source. MARGIN
overrides MR if both are asserted at the same time.
Serial Data Input/Output (Open Drain). SDA requires an external pullup resistor.
Serial-Interface Clock Input. SCL requires an external pullup resistor.
Serial Address Input 0. Allows up to 2 devices to share a common bus. Connect A0 to
ground or the serial-interface power supply.
Reference Voltage Input. Program the device for external or internal reference. Connect
an external +1.225V to +1.275V reference to REFIN when using an external reference.
Leave REFIN unconnected when using the internal reference.
Auxiliary Input. A 10-bit ADC converts the input voltage at AUXIN. The high-impedance
AUXIN input accepts input voltages up to 1.25V. AUXIN does not affect programmable
outputs.
No Connection. Not internally connected.
Internal Power-Supply Voltage. Bypass V
close to the device as possible. V
internally powered from the highest of the monitored IN1–IN4 voltages. Do not use V
to supply power to external circuitry. To externally supply V
MAX6884/MAX6885 section.
Internal Digital Power-Supply Voltage. Bypass DBP to GND with a 1µF ceramic
capacitor. DBP supplies power to the EEPROM memory, the internal logic circuitry, and
the programmable outputs. Do not use DBP to supply power to external circuitry.
Voltage-Detector Input 6. Program two thresholds per voltage-detector input
(undervoltage UV and undervoltage/overvoltage UV/OV). Program IN6 detector
thresholds from 1V to 5.8V in 20mV increments, 0.5V to 3.05V in 10mV increments. For
improved noise immunity, bypass IN6 to GND with a 0.1µF capacitor installed as close
to the device as possible.
Voltage-Detector Input 5. Program two thresholds per voltage-detector input
(undervoltage UV and undervoltage/overvoltage UV/OV). Program IN5 detector
thresholds from 1V to 5.8V in 20mV increments, 0.5V to 3.05V in 10mV increments. For
improved noise immunity, bypass IN5 to GND with a 0.1µF capacitor installed as close
to the device as possible.
Voltage-Detector Input 4. Program two thresholds per voltage-detector input
(undervoltage UV and undervoltage/overvoltage UV/OV). Program IN4 detector
thresholds from 1V to 5.8V in 20mV increments, 0.5V to 3.05V in 10mV increments. For
improved noise immunity, bypass IN4 to GND with a 0.1µF capacitor installed as close
to the device as possible. Program the device to receive power through IN1–IN4 inputs
or V
CC
(see the Powering the MAX6884/MAX6885 section).
CC
supplies power to the internal circuitry. V
FUNCTION
Pin Description (continued)
CC
to GND with a 1µF ceramic capacitor as
CC
, see the Powering the
CC
is
CC