Datasheet > LTC2970IUFD-1-PBF

LTC2970IUFD-1-PBF

更新时间： 2024-11-19 05:43:51

品牌	Logo	应用领域
凌特 - Linear		监视器控制器
页数	文件大小	规格书
36页	399K
描述
Dual I2C Power Supply Monitor and Margining Controller

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中文翻译

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数据手册

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LTC2970/LTC2970-1

Dual I C Power

Supply Monitor and

Margining Controller

DESCRIPTIO

FEATURES

The LTC^®2970 is a dual power supply monitor and

margining controller with an SMBus compatible I C bus

■

Less Than ±±0.5 Total Unadjusted Error 14-Bit ΔΣ

ADC with On-Chip Reference

■

Dual, 8-Bit IDACs with 1x Voltage Buffers

interface. A low-drift, on-chip reference and 14-bit ΔΣ A/D

converterallowprecisemeasurementsofsupplyvoltages,

load currents or internal die temperature. Fault manage-

ment allows ALERT to be asserted for conﬁgurable over

and under voltage fault conditions. Two voltage buffered,

8-bit IDACs allow highly accurate programming of DC/DC

converter output voltages. The IDACs can be conﬁgured

to automatically servo the power supplies to the desired

voltages using the ADC. The LTC2970-1 adds a tracking

feature that can be used to turn multiple power supplies

on or off in a controlled manner.

■

Linear, Voltage Servo Adjusts Supply Voltages by

Ramping IDAC Outputs Up/Down

■

I C™ Bus Interface (SMBus Compatible)

■

Extensive, User Conﬁgurable Fault Monitoring

■

On-Chip Temperature Sensor

■

Available in 24-Lead 4mm × 5mm QFN Package

APPLICATIO S

■

Dual Power Supply Voltage Servo

Monitoring Supply Voltage and Current

Programmable Power Supplies

Programmable Reference

The bus address is set to 1 of 9 possible combinations by

pin strapping the ASEL0 and ASEL1 pins. The LTC2970/

LTC2970-1 are packaged in the 24-lead, 4mm × 5mm

QFN package.

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

TYPICAL APPLICATIO

Dual Power Supply Monitor and Controller (One of Two Channels Shown)

ADC Total Unadjusted Error

vs Temperature

8V TO 15V

0.50

0.25

15 PARTS MOUNTED ON PCB

0.1μF

12V

OUT

1/2 LTC2970

GPIO_CFG

I+

I–

IN0_BM

IN0_BP

OUT0

ALERT

SCL

DC/DC

I C BUS

SMBUS

COMPATIBLE

CONVERTER

–0.25

SDA

(

)

IN0_AP

ADC V = 5V

RUN/SS FB

GPIO_0

REF

LOAD

OUT0

–0.50

–25

–50

100

TEMPERATURE (°C)

SGND

GND

IN0_AM

29701 TA01b

GND ASEL0 ASEL1

0.1μF

29701 TA01

29701fc

12 3 4 5 6 7...36

中文翻译

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与LTC2970IUFD-1-PBF相关器件

型号	品牌	获取价格	描述	数据表
LTC2970IUFD-1-TRPBF	Linear	获取价格	Dual I2C Power Supply Monitor and Margining Controller
LTC2970IUFD-PBF	Linear	获取价格	Dual I2C Power Supply Monitor and Margining Controller
LTC2970IUFD-TRPBF	Linear	获取价格	Dual I2C Power Supply Monitor and Margining Controller
LTC2971	ADI	获取价格	双通道±60 V电源系统管理器
LTC2972	ADI	获取价格	具有可编程电源正常输出的 2 通道 PMBus 电源系统管理器
LTC2974	Linear	获取价格	Wide Range I2C Power Monitor Rail-to-Rail Input Range: 0V to 80V
LTC2974	Linear Systems	获取价格	Octal Digital Power Supply Manager with EEPROM
LTC2974	LINEAR_DIMENSIONS	获取价格	Dual 8A per Channel Low VIN DC/DC Î¼Module Re
LTC2974	ADI	获取价格	具有精确输出电流的4通道PMBus电源系统管理器
LTC2974CUPPBF	Linear	获取价格	4-Channel PMBus Power System Manager

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