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PDF LM25066 Data sheet ( Hoja de datos )
| Número de pieza | LM25066 | |
| Descripción | System Power Management And Protection IC | |
| Fabricantes | National Semiconductor Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LM25066 (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
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LM25066
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February 19, 2010
System Power Management and Protection IC with PMBus
General Description
The LM25066 combines high performance analog and digital
technology to accurately measure, protect and control the
electrical operating conditions of computing and storage
blades connected to a backplane power bus. The LM25066
continuously supplies real-time power, voltage, current, tem-
perature and fault data to the system management host via
the I2C/SMBus interface with PMBus compliant protocol. The
LM25066 monitoring block captures peak power and com-
putes the average of subsystem operating parameters (Vin,
Iin, Pin, Vout). LM25066 current measurement is ±3% accu-
rate over the operating temperature range of -40°C to 125°C.
The LM25066 protection block utilizes provides adjustable
under/overvoltage and hysteresis. A temperature monitoring
block on the LM25066 interfaces with a low-cost external
diode for monitoring the temperature of the external MOSFET
or other critical temperature source. The temperature sensor
can be used to protect against MOSFET overheating. The
LM25066 reports the status of all system warning and fault
conditions and offers programmable warning thresholds
through the SMBus interface. This feature provides design
flexibility and dynamic system protection.
The LM25066 control block includes unique hot-swap archi-
tecture that provides current and power limiting to protect
sensitive circuitry during insertion of boards from a live system
backplane, or any other "hot" power source.
Features
■ Operating range: +2.9V to +17V
■ Current Limit Threshold: 25 mV or 50 mV
■ I2C/SMBus interface and PMBus compliant command
structure
■ Real time system telemetry monitoring
■ Current measurement accuracy: ±3%, 25 mV threshold,
-40°C to 125°C
■ True Input Power from simultaneous sampling of VIN and
IIN
■ Power limited control of hotswap insertions, inrush current,
circuit breaker functions
■ Multi-level configuration and monitoring of system fault
conditions via PMBus
■ Full featured application design and development
software
Applications
■ Server Backplane Systems
■ Base Station Power Distribution Systems
■ Solid State Circuit Breaker
Package
24-Lead LLP Package
Block Diagram
© 2010 National Semiconductor Corporation 301158
30115801
www.national.com
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet LM25066.PDF ] | |
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