Datasheet > LTC2979

LTC2979

更新时间： 2024-11-24 14:57:43

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	737K
描述
16 通道 PMBus 低电压电源系统管理器

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中文翻译

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数据手册

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LTC2979 数据手册

LTC2979

16-Channel PMBus

Low-Voltage Power System Manager

FEATURES

DESCRIPTION

The LTC^®2979 is a 16-channel Power System Manager

used to sequence, trim (servo), margin, supervise,

manage faults, provide telemetry and create fault logs.

PMBus commands support power supply sequencing,

precision point-of-load voltage adjustment and margin-

ing. DACs use a proprietary soft-connect algorithm to

minimize supply disturbances. Supervisory functions

include overvoltage and undervoltage threshold limits

for sixteen power supply output channels and two power

supply input channels, as well as over and under tempera-

ture limits. Programmable fault responses can disable the

power supplies with optional retry after a fault is detected.

Faults that disable a power supply can automatically trig-

ger black box EEPROM storage of fault status and associ-

ated telemetry. An internal 16-bit ADC monitors sixteen

output voltages, two input voltages and die temperature.

In addition, odd numbered channels can be configured

to measure the voltage across a current sense resistor. A

programmable watchdog timer monitors microprocessor

activity for a stalled condition and resets the microproces-

sor if necessary. A single wire bus synchronizes power

supplies across multiple ADI Power System Management

(PSM) devices. Configuration EEPROM with ECC sup-

ports autonomous operation without additional software.

Sequence, Trim, Margin and Supervise 16

Power Supplies

Manage Faults, Monitor Telemetry and Create Fault Logs

PMBus Compliant Command Set

Supported by LTpowerPlay^®GUI

Margin or Trim Supplies to within 0.5% of Target

Fast OV/UV Supervisors per Channel

Coordinate Sequencing and Fault Management

Across Multiple ADI PSM Devices

Automatic Fault Logging to Internal EEPROM

Operate Autonomously without Additional Software

Internal Temperature and Input Voltage Supervisors

Accurate Monitoring of 16 Output Voltages, Two

Input Voltages and Internal Die Temperature

I C/SMBus Serial Interface

Powered from 3.13V to 3.47V

Programmable Watchdog Timer

Available in 144-Pin 12mm × 12mm BGA Package

APPLICATIONS

Computers and Network Servers

Industrial Test and Measurement

High Reliability Systems

Medical Imaging

Video

All registered trademarks and trademarks are the property of their respective owners. Protected

by U.S. Patents including 7382303, 7420359 and 7940091.

TYPICAL APPLICATION

LTC2979 Sequencing 16 Channels

16-Channel PMBus Power System Manager

IBC

IN OUT

12V

48V

IN_SNS

OUT

DC/DC

CONVERTER

RUN

IN_EN

SENSEP0

0.5V/DIV

3.3V

REGULATOR

DD33

LOAD

LTC2979

SENSEM0

R20

SDA

SCL

ALERTB

CONTROL

FAULT

PMBus

INTERFACE

R30

DAC

2979 TA01b

R10

10ms/DIV

PWRGD

OUT_EN

2979 TA01a

NOTE: SOME DETAILS OMITTED FOR CLARITY

ONLY ONE OF 16 CHANNELS SHOWN

Rev A

Document Feedback

For more information www.analog.com

12 3 4 5 6 7...20

中文翻译

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与LTC2979相关器件

型号	品牌	获取价格	描述	数据表
LTC2980	ADI	获取价格	16 通道 PMBus 电源系统管理器
LTC2980-24	ADI	获取价格	24通道PMBus电源系统管理器
LTC2983	ADI	获取价格	多传感器高准确度数字温度测量系统
LTC2984	ADI	获取价格	具有 EEPROM 的多传感器高准确度数字温度测量系统
LTC2986	ADI	获取价格	具有EEPROM的多传感器高精度数字温度测量系统
LTC2990	Linear Systems	获取价格	Temperature Sensor and Dual Voltage Monitor with Alert Outputs
LTC2990	Linear	获取价格	I2C Temperature, Voltage and Current Monitor
LTC2990	ADI	获取价格	四路 I2C 电压、电流和温度监视器
LTC2990CMS	Linear	获取价格	TEMPERATURE, VOLTAGE AND CURRENT MONITOR
LTC2990CMS#PBF	Linear Systems	获取价格	LTC2990 - Quad I<sup>2</sup>C Voltage, Current and Temperature Monitor; Packag

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