LM25066IA

更新时间： 2024-11-16 11:07:55

品牌	Logo	应用领域
德州仪器 - TI		控制器监控电源管理电路电源电路
页数	文件大小	规格书
49页	1371K
描述
具有 I2C 和 PMBus 及更高监控精度的 2.9V 至 17V 热插拔控制器，带有 Intel 节点

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中文翻译

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数据手册
替代型号

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LM25066IA 数据手册

April 19, 2012

LM25066A

System Power Management and Protection IC with

PMBus™

I²C/SMBus interface and PMBus compliant command

structure

Programmable 25mV or 46mV current limit threshold

Configurable circuit breaker protection for hard shorts

■

General Description

The LM25066A combines a high performance hot-swap con-

troller with a PMBus™ compliant SMBus/I²C interface to ac-

curately measure, protect and control the electrical operating

conditions of computing and storage blades connected to a

backplane power bus. The LM25066A continuously supplies

real-time power, voltage, current, temperature and fault data

to the system management host via the SMBus interface.

■

Configurable under-voltage and over-voltage lockouts

with hysteresis

Remote temperature sensing with programmable warning

and shutdown thresholds

■

Detection and notification of damaged MOSFET condition

■

The LM25066A control block includes a unique hot-swap ar-

chitecture that provides current and power limiting to protect

sensitive circuitry during insertion of boards into a live system

backplane, or any other "hot" power source. A fast acting cir-

cuit breaker prevents damage in the event of a short circuit

on the output. The input under-voltage and over-voltage lev-

els and hysteresis are configurable, as well as the insertion

delay time and fault detection time. A temperature monitoring

block on the LM25066A interfaces with a low-cost external

diode for monitoring the temperature of the external MOSFET

or other thermally sensitive components. The POWER GOOD

output provides a fast indicator when the input and/or output

voltages are outside their programmed range. LM25066A

current measurement accuracy is ±1% over temperature.

Real time monitoring of V_IN, V_OUT, I_IN, P_IN, V_AUXwith 12-bit

resolution and 1 kHz sampling rate

Current measurement accuracy: ±1% over temperature

Power measurement accuracy: ±2% over temperature

■

True input power measurement using simultaneous

sampling of V_INand I_INaccurately averages dynamic

power readings

Averaging of V_IN, I_IN, P_IN, and V_OUTover programmable

interval ranging from 0.001 to 4 seconds

Programmable WARN and FAULT thresholds with

SMBA notification

Black box capture of telemetry measurements and device

status triggered by WARN or FAULT condition

■

The LM25066A monitoring block computes both the real-time

and average values of subsystem operating parameters

(V_IN, I_IN, P_IN, V_OUT) as well as the peak power. Accurate power

averaging is accomplished by averaging the product of the

input voltage and current. A black box (Telemetry/Fault Snap-

shot) function captures and stores telemetry data and device

status in the event of a warning or a fault.

24-lead LLP package

Applications

Server backplane systems

■

Basestation power distribution systems

Solid state circuit breaker

Features

Input voltage range: 2.9V to 17V

■

Typical Application Schematic

30146011

301460 SNVS700E

www.ti.com

12 3 4 5 6 7...49

中文翻译

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LM25066IA 替代型号

型号	品牌	替代类型	描述	数据表
LM5064	TI	功能相似	Negative Voltage System Power Management and Protection IC with PMBus
LM25066A	TI	功能相似	System Power Management and Protection IC wit

与LM25066IA相关器件

型号	品牌	获取价格	描述	数据表
LM25066IAPSQ/NOPB	TI	获取价格	具有 I2C 和 PMBus 及更高监控精度的 2.9V 至 17V 热插拔控制器，带有
LM25066IAPSQE/NOPB	TI	获取价格	2.9-V to 17-V hot swap controller with I<sup>2</sup>C and PMBus - increased mo
LM25066IAPSQX/NOPB	TI	获取价格	2.9-V to 17-V hot swap controller with I<sup>2</sup>C and PMBus - increased mo
LM25066IPSQ/NOPB	TI	获取价格	具有 I2C 和 PMBus 的 2.9V 至 17V 热插拔控制器，带有 Intel 节
LM25066IPSQE/NOPB	TI	获取价格	具有 I2C 和 PMBus 的 2.9V 至 17V 热插拔控制器，带有 Intel 节
LM25066IPSQX/NOPB	TI	获取价格	具有 I2C 和 PMBus 的 2.9V 至 17V 热插拔控制器，带有 Intel 节
LM25066PSQ/NOPB	TI	获取价格	具有 PMBus 的 2.9V 至 17V 热插拔控制器 \| NHZ \| 24 \| -40
LM25066PSQE/NOPB	TI	获取价格	2.9-V to 17-V hot swap controller with PMBus 24-WQFN -40 to 125
LM25066PSQX/NOPB	TI	获取价格	具有 PMBus 的 2.9V 至 17V 热插拔控制器 \| NHZ \| 24 \| -40
LM25069	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller

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