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INA745B中文資料德州儀器數據手冊PDF規(guī)格書

INA745B
廠商型號

INA745B

功能描述

INA745x 40 V, 16-Bit, Precision I2C Output Digital Power Monitor with EZShunt? Technology

文件大小

1.41563 Mbytes

頁面數量

41

生產廠商 Texas Instruments
企業(yè)簡稱

TI1德州儀器

中文名稱

德州儀器官網

原廠標識
數據手冊

下載地址一下載地址二到原廠下載

更新時間

2024-12-24 9:38:00

INA745B規(guī)格書詳情

1 Features

? Low loss integrated shunt resistor

– Internal resistance: 800 μΩ, TA = 25°C

– Continuous current: ±35 A, TA = 25°C

– Peak measurement capability: ±39.32 A

? Wide common-mode range: –0.1 V to +40 V

? High-resolution, 16-bit delta-sigma ADC

? Current monitoring accuracy: A/B Grade,

maximum

– Offset current: ±6.25 mA / ±62.5 mA

– Offset drift: ±25 μA/°C (A and B Grades)

– System gain error: ±0.75 / ±1.25

– System gain error drift: ±25 PPM/°C, typical

– Common-mode rejection: ±0.125 / ±1.25 mA/V

? Power monitoring accuracy: A/B Grade, maximum

– ±0.85 / ±1.55 at 25°C, full scale

? Energy and charge accuracy: A/B Grade,

maximum

– ±1.35 / ±2.05 at 25°C, full scale

? Input bias current: 2.5 nA (maximum)

? Temperature sensor: ±1.5°C (maximum at 25°C)

? Programmable conversion time and averaging

? 2.94-MHz high-speed I2C interface with 16 pinselectable

addresses

? Operates from a 2.7-V to 5.5-V supply:

– Operational current: 640 μA (typical)

– Shutdown current: 5 μA (maximum)

2 Applications

? Power delivery

? Grid infrastructure

? Industrial battery packs

? Test equipment

? Telecom equipment

? Enterprise servers

3 Description

The INA745x is a digital power monitor with an

integrated current sensing element along with a 16-

bit delta-sigma ADC specifically designed for currentsensing

applications. The device can measure fullscale

currents up to ±39.32 A with common-mode

voltage support from –0.1 V to +40 V.

The INA745x reports current, bus voltage, die

temperature, power, energy and charge accumulation

while employing a precision ±0.5 integrated

oscillator, all while performing the needed calculations

in the background. The integrated temperature sensor

is ±2.5°C accurate over the junction temperature

range.

The low offset and gain drift design of the INA745x

allows the device to be used in precise systems that

do not undergo multi-temperature calibration during

manufacturing.

The device allows for selectable ADC conversion

times from 50 μs to 4.12 ms as well as sample

averaging from 1x to 1024x, which further helps

reduce the noise of the measured data.

供應商 型號 品牌 批號 封裝 庫存 備注 價格
TI(德州儀器)
23+
NA
20094
正納10年以上分銷經驗原裝進口正品做服務做口碑有支持
詢價
TI/德州儀器
2023+
SOIC-8
1344
專注全新正品,優(yōu)勢現(xiàn)貨供應
詢價
TI(德州儀器)
23+
NA/
8735
原廠直銷,現(xiàn)貨供應,賬期支持!
詢價
TI(德州儀器)
23+
SOP8
7350
現(xiàn)貨供應,當天可交貨!免費送樣,原廠技術支持!!!
詢價
TI(德州儀器)
23+
SOIC-8
10000
只做原裝 假一賠萬
詢價
TI
23+
N/A
8000
專注配單,只做原裝進口現(xiàn)貨
詢價
TI德州儀器
22+
SOP8
24000
原裝正品現(xiàn)貨,實單可談,量大價優(yōu)
詢價
TI
24+
SOP-8
10000
一級代理保證進口原裝正品現(xiàn)貨假一罰十價格合理
詢價
TI
23+
N/A
560
原廠原裝
詢價
TI(德州儀器)
10000
原裝正品現(xiàn)貨庫存價優(yōu)
詢價