MAX16068 Datasheet, PDF (1/40 Pages) Maxim Integrated Products – 6-Channel, Flash-Configurable System Manager with Nonvolatile Fault Registers

19-5040; Rev 0; 10/09
6-Channel, Flash-Configurable System Manager
with Nonvolatile Fault Registers
General Description
The MAX16068 flash-configurable system manager
monitors and manages up to six system voltages
simultaneously. The MAX16068 integrates an analog-
to-digital converter (ADC). Device configuration infor-
mation, including overvoltage and undervoltage limits,
time delay settings is stored in nonvolatile flash memory.
During a fault condition, fault flags and channel volt-
ages can be automatically stored in the nonvolatile flash
memory for later readback.
The internal 1% accurate, 10-bit ADC measures each
input and compares the result to one overvoltage and
one undervoltage limit. A fault signal asserts when a
monitored voltage falls outside the set limits.
The MAX16068 supports a power-supply voltage of up to
14V and can be powered directly from the 12V interme-
diate bus in many systems.
The MAX16068 includes six programmable general-
purpose inputs/outputs (GPIOs). GPIOs are flash con-
figurable as a fault output, as a watchdog input or output,
or as a manual reset.
The MAX16068 features nonvolatile fault memory for
recording information during system shutdown events.
The fault logger records a failure in the internal flash
and sets a lock bit protecting the stored fault data from
accidental erasure.
An SMBus™ or a JTAG serial interface configures the
MAX16068. The MAX16068 is available in a 28-pin, 5mm
x 5mm, TQFN package and is fully specified over the
-40NC to +85NC extended temperature range.
Features
S Operates from 2.8V to 14V
S 1% Accurate, 10-Bit ADC Monitors 6 Voltage
Inputs
S Analog EN Monitoring Input
S 6 Monitored Inputs with Overvoltage and
Undervoltage Limits
S Nonvolatile Fault Event Logger
S Six General-Purpose Inputs/Outputs Configurable
as:
Dedicated Fault Output
Watchdog Timer Function
Manual Reset
SMBus Alert
Fault Propagation Input/Output
S SMBus and JTAG Interface
S Supports Cascading with MAX16065/MAX16066
S Flash-Configurable Time Delays and Thresholds
S -40NC to +85NC Extended Operating Temperature
Range
Applications
Networking Equipment
Telecom Equipment (Base Stations, Access)
Storage/Raid Systems
Servers
Typical Operating Circuit appears at end of data sheet.
Ordering Information/Selector Guide
PART
PIN-PACKAGE
VOLTAGE-DETECTOR INPUTS
MAX16068ETI+
28 TQFN-EP*
6
Note: This device is specified over the -40NC to +85NC extended temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
GENERAL-PURPOSE INPUTS/
OUTPUTS
6
SMBus is a trademark of Intel Corp.
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