Datasheet > 电源电路 > 电源管理电路> LM25066PSQX/NOPB

LM25066PSQX/NOPB

更新时间： 2024-10-02 11:08:07

品牌	Logo	应用领域
德州仪器 - TI		控制器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 PMBus 的 2.9V 至 17V 热插拔控制器 \| NHZ \| 24 \| -40 to 125

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中文翻译

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数据手册
替代型号

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LM25066PSQX/NOPB 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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LM25066PSQX/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LM25066PSQE/NOPB	TI	完全替代	2.9-V to 17-V hot swap controller with PMBus 24-WQFN -40 to 125

与LM25066PSQX/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LM25069	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller
LM25069	TI	获取价格	具有功率限制和电源正常指示功能的 2.9V 至 17V 热插拔控制器
LM25069PMM-1	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller
LM25069PMM-1/NOPB	TI	获取价格	具有功率限制和电源正常指示功能的 2.9V 至 17V 热插拔控制器 \| DGS \| 10
LM25069PMM-2	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller
LM25069PMM-2/NOPB	TI	获取价格	具有功率限制和电源正常指示功能的 2.9V 至 17V 热插拔控制器 \| DGS \| 10
LM25069PMME-1	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller
LM25069PMME-1/NOPB	TI	获取价格	具有功率限制和电源正常指示功能的 2.9V 至 17V 热插拔控制器 \| DGS \| 10
LM25069PMME-2	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller
LM25069PMME-2/NOPB	TI	获取价格	具有功率限制和电源正常指示功能的 2.9V 至 17V 热插拔控制器 \| DGS \| 10

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