The MAX6884/MAX6885 EEPROM-configurable, multivoltage
power-supply supervisors monitor six voltagedetector
inputs, one auxiliary input, and one watchdog
input, and feature three programmable outputs for highly
configurable power-supply monitoring applications.
Manual reset and margin disable inputs offer additional
flexibility.
Each voltage-detector input offers a programmable primary
undervoltage and secondary undervoltage/overvoltage
threshold. Voltage-detector inputs IN1-IN6
monitor voltages from 1V to 5.8V in 20mV increments or
0.5V to 3.05V in 10mV increments.
Programmable outputs RESET-bar, UV-bar/OV-bar, and WDO-bar provide
system resets/interrupts. Programmable output
options include open-drain or weak pullup. Programmable
timing delay blocks configure each output to
wait between 25µs and 1600ms after their respective
assertion-causing conditions have been cleared. A fault
register logs condition-causing events (undervoltage,
overvoltage, manual reset, etc.).
An internal 10-bit, 1% accurate ADC (MAX6884 only)
converts the voltages at IN1-IN6, AUXIN, and VCC
through a multiplexer that automatically sequences
through all inputs every 200ms. An SMBus™/I²C*-compatible
serial data interface programs and communicates
with the configuration EEPROM, configuration
registers, internal 512-bit user EEPROM, and reads the
ADC registers (MAX6884 only) and fault registers.
The MAX6884/MAX6885 are available in a 5mm x 5mm
x 0.8mm 20-pin thin QFN package and operate over
the extended temperature range (-40°C to +85°C).
Key Features
Applications/Uses
6 Configurable Input Voltage Detectors
Programmable Thresholds 0.5V to 3.05V
(in 10mV Increments) or 1V to 5.8V (in 20mV
Increments)
Primary UV and Secondary UV/OV Thresholds
One Configurable Watchdog Timer from 6.25ms
to 102.4s
Configurable RESET-bar, UV-bar/OV-bar, and WDO-bar Outputs
Three Programmable Outputs
Open-Drain or Weak Pullup RESET-bar, UV-bar/OV-bar,
and WDO-bar
Active-Low Output Logic
Timing Delays from 25µs to 1600ms
Margining Disable and Manual Reset Controls
Internal 1.25V Reference or External Reference
Input
10-Bit Internal ADC Samples the Input Voltage
Detectors, VCC and Auxiliary Input
512-Bit User EEPROM
Endurance: 100,000 Erase/Write Cycles
Data Retention: 10 Years
SMBus/I²C-Compatible Serial
Configuration/Communication Interface
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices:
1-8
of
8
MAX6884
Free Sample
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free? Materials Analysis
MAX6884ETP+
TQFN;20 pin;26 mm²
Outline Drawing: 21-0140 (PDF)
Land Pattern: 90-0010 (PDF)
Use pkgcode/variation: T2055+5*
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