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LM25066I Datenblatt(PDF) 1 Page - Texas Instruments

Teilenummer LM25066I
Bauteilbeschribung  Intel Node Manager Compliant System Power Management and Protection IC
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LM25066I, LM25066IA
www.ti.com
SNVS824C – JUNE 2012 – REVISED MARCH 2013
Intel Node Manager Compliant System Power Management and Protection IC with PMBus
Check for Samples: LM25066I, LM25066IA
1
FEATURES
DESCRIPTION
While the LM25066I/A is functionally similar to the
2
Fully Node Manager 2.0 and 2.5 Compliant with
LM25066/A, the LM25066I/A is fully compliant to Intel
I2C/SMBus interface and PMBus™ compliant
Node Manager 2.0, 2.5 and adds the READ_EIN
command structure
energy
accumulator
feature.
The
LM25066I/A
Input voltage range: 2.9V to 17V
combines a high-performance hot-swap controller
with a PMBus 1.2compliant SMBus/I2C interface to
Programmable 25mV or 46mV current limit
accurately measure, control and protect the electrical
threshold
operating
conditions
of
critical
systems.
The
Read_EIN accurately measures true input
LM25066I/A continuously supplies real-time power,
power via simultaneous sampling
voltage, current, temperature, and fault data to the
Configurable circuit breaker protection for
system management host via the SMBus interface.
hard shorts
The LM25066I/A control block includes a unique hot-
Configurable under- and over-voltage lockouts
swap architecture that provides current and power
with hysteresis
limiting to protect sensitive circuitry even during the
most stressful conditions. A fast-acting circuit breaker
Real time monitoring of VIN, VOUT, IIN, PIN, VAUX
prevents damage in the event of a short circuit on the
with 12-bit resolution and 1 kHz sampling rate
output.
The
input
under-voltage,
over-voltage
Current measurement accuracy: ±1%
hysteresis, insertion delay time and fault detection
(LM25066IA) and Power measurement
time are all configurable. A temperature monitoring
accuracy: ±2.0% (LM25066IA) over temperature
block on the LM25066I/A interfaces with a low-cost
Averaging of VIN, IIN, PIN, and VOUT over
external
diode
for
continuous
temperature
assessment of the external MOSFET or other thermal
programmable interval ranging from 0.001 to 4
sensitive components. The POWER GOOD output
seconds
provides a fast alert when the input and/or output
Programmable WARN and FAULT thresholds
voltages
are
outside
their
programmed
range.
with SMBA notification
Accurate power readings are accomplished by using
Blackbox capture of telemetry measurements
the
READ_EIN
command.
A
black
box
and device status triggered by WARN or
(Telemetry/Fault Snapshot) function captures and
stores telemetry data and device status in the event
FAULT condition
of a warning or a fault.
24-lead WQFN package
APPLICATIONS
Server backplane systems
Basestation power distribution systems
Solid state circuit breaker (eFuse)
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2012–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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